CN211723122U

CN211723122U - Fundus imaging apparatus and fundus imaging system

Info

Publication number: CN211723122U
Application number: CN201922320003.4U
Authority: CN
Inventors: 王瑞
Original assignee: Suzhou Yinquepi Electronic Technology Co ltd
Current assignee: Suzhou Yinquepi Electronic Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-23
Anticipated expiration: 2029-12-20

Abstract

The embodiment of the utility model discloses fundus camera device and fundus camera system. The fundus imaging apparatus includes: the device comprises a device body, a communication module and an eyeground camera module; the communication module and the fundus camera module are arranged in the device body; the fundus camera module is used for acquiring fundus image data of the fundus of the user and sending the fundus image data to the communication module; the communication module is used for acquiring the fundus image data and sending the fundus image data to the terminal equipment so that the terminal equipment can receive the fundus image data and process the fundus image data, wherein the processing comprises displaying; the fundus camera module includes: imaging lens subassembly, light source and image sensor. The embodiment of the utility model provides a can reduce the volume of eye ground camera equipment, reduce eye ground camera equipment's cost.

Description

Fundus imaging apparatus and fundus imaging system

Technical Field

The embodiment of the utility model provides a relate to the image processing technology, especially relate to a fundus camera device and fundus camera system.

Background

The fundus is the only part where the arteries, veins and the tissue ducts can be directly and intensively observed by naked eyes, and the blood vessels can reflect the dynamic and healthy conditions of the whole body blood circulation of a human body. Therefore, fundus examination is not only an important method of examining vitreous, retinal, choroidal and optic nerve diseases of the eye, but is also the "window" for many systemic disease monitoring.

Fundus cameras are currently the most widely used fundus examination devices. Among fundus cameras on the market, a desktop type fundus camera generally includes an eyepiece for an observer to directly observe a fundus image of a user at the other end of the user whose fundus is measured, and is also large in size and expensive. The portable fundus camera generally comprises a processor, a memory, a display and the like, and is an independent device, namely complex processing and the like can be carried out on acquired fundus image data, so that the requirement on the built-in processor of the portable fundus camera is high, the size is large correspondingly, and the price is high.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a fundus camera device and fundus camera system can reduce fundus camera equipment's volume, reduces fundus camera equipment's cost.

In a first aspect, an embodiment of the present invention provides a fundus camera device, include: the device comprises a device body, a communication module and an eyeground camera module;

the communication module and the fundus camera module are arranged in the device body;

the fundus camera module is used for acquiring fundus image data of the fundus of the user and sending the fundus image data to the communication module;

the communication module is used for acquiring the fundus image data and sending the fundus image data to the terminal equipment so that the terminal equipment can receive the fundus image data and process the fundus image data, wherein the processing comprises displaying;

the fundus camera module includes: an imaging lens assembly, a light source and an image sensor;

the light source is used for illuminating the fundus of the user;

the imaging lens assembly is used for receiving the light reflected by the fundus of the user from the light source and imaging the light;

the image sensor is used for receiving the light which is reflected by the fundus of the user and imaged by the imaging lens assembly and converting the light into fundus image data.

In a second aspect, the embodiment of the present invention provides a fundus imaging system, including: according to the embodiment of the utility model, the eyeground camera device is connected with the terminal equipment through the communication module;

the fundus camera device is used for acquiring fundus image data of the fundus of the user and transmitting the fundus image data to the terminal equipment;

the terminal equipment is used for receiving and processing the fundus image data, and controlling the fundus camera to acquire the fundus image data of a user, wherein the processing comprises displaying.

A third aspect of the present invention provides a fundus imaging method, which is applied as the embodiment of the present invention provides an arbitrary fundus imaging system, including:

receiving a work control instruction input by a user through terminal equipment, and sending the work control instruction to the fundus camera device;

shooting the fundus of the user through the fundus camera, acquiring fundus image data and sending the fundus image data to the terminal equipment;

processing the fundus image data by the terminal device, wherein the processing includes displaying.

The embodiment of the utility model provides a through dispose communication module in fundus camera device, this communication module is used for transmitting the fundus image data that fundus camera module measures the eye ground and obtains to make terminal equipment handle according to fundus image data, if show by terminal equipment fundus image data reduces the processing operation of fundus camera module to the eye ground image, and reduces the data bulk of the processing of fundus camera module, omits the display function of fundus camera module simultaneously, reduces the independent display function of fundus camera module, with the volume that reduces fundus camera module, has solved the bulky and with high costs problem of fundus camera among the prior art, can reduce the performance requirement of fundus camera module, thereby reduce cost, and reduce the display function of fundus camera module, thereby reduce the volume of fundus camera module.

Drawings

Fig. 1a is a schematic structural diagram of a fundus imaging apparatus according to a first embodiment of the present invention;

fig. 1b is a schematic structural diagram of a fundus imaging apparatus according to a first embodiment of the present invention;

fig. 1c is a schematic structural diagram of a fundus imaging apparatus according to a first embodiment of the present invention;

fig. 1d is a schematic structural diagram of a fundus imaging apparatus according to a first embodiment of the present invention;

fig. 2a is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2b is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2c is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2d is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2e is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2f is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 2g is a schematic structural diagram of a fundus imaging system according to a second embodiment of the present invention;

fig. 3 is a flowchart of a fundus imaging method according to a third embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.

Example one

Fig. 1a is a schematic structural diagram of a fundus camera apparatus in the first embodiment of the present invention, the fundus camera apparatus specifically includes: the device comprises a device body, a communication module and a fundus camera module. As shown in fig. 1a, the fundus imaging apparatus includes: an apparatus body 110, a communication module 120, and a fundus camera module 130.

Among them, the apparatus body 110 is provided with a communication module 120 and a fundus imaging module 130. The fundus camera module 130 is used for acquiring fundus image data of the fundus of the user and sending the fundus image data to the communication module 120; the communication module 130 is configured to acquire fundus image data and transmit the fundus image data to the terminal device 140, so that the terminal device 140 receives the fundus image data and performs processing, including display.

Specifically, the fundus imaging module 130 communicates with the terminal device 140 through the communication module 120, transmits fundus image data to the terminal device 140, processes the fundus image data by the terminal device 140, for example, performs image decoding, fundus region enlargement, fundus pathology image analysis, and the like, and forms a fundus image or a fundus video, which is displayed, stored, or otherwise processed in the terminal device 140. The fundus image data is used to form a fundus image or fundus video, and information describing the user's fundus.

That is, the terminal apparatus 140 processes fundus image data instead of the fundus imaging module 130, and the processing may be, but is not limited to: decoding image data, analyzing pathological images, displaying, storing and the like; thereby reducing the complexity of processing and the amount of data processed by the fundus camera module 130, reducing the performance requirements of the fundus camera module 130, thereby reducing the equipment complexity of the fundus camera module 130, and reducing the area of the electronic circuits included in the fundus camera module 130, thereby reducing the volume of the fundus camera apparatus.

The terminal device 140 may include, but is not limited to, a mobile phone, a tablet computer, a vehicle-mounted terminal, a notebook computer, or a desktop computer. Further, the terminal device 140 may also be a printer for printing a photographed fundus image.

As shown in fig. 1b, the fundus camera module 130 further includes: an imaging lens assembly 133, a light source 131, and an image sensor 132. In the apparatus body, an imaging lens assembly 133, a light source 131, and an image sensor 132 are provided.

Specifically, the light source 131 is used to illuminate the fundus of the user. The light source may be any light source that can illuminate the fundus of the user, for example, the light source may include a tungsten lamp, a flash lamp, or the like, or the light source may include white light for generating a color image and near-infrared light for focusing; or the light source may be a combination of different forms of light emitting diodes. The type of the light source can be set as required, and the embodiment of the present invention is not particularly limited. The light source may be disposed outside the optical path of the imaging optics assembly and the image sensor 132, and may transmit light to the fundus of the user via a mirror assembly of the imaging optics assembly 133. In addition, the arrangement method and the position of the light source can be set as required, and the embodiment of the present invention is not particularly limited.

The imaging lens assembly 133 is configured to receive light reflected from the fundus of the user from the light source and image the light, i.e., image the light reflected from the fundus, and present the light on the image sensor 132. In particular, the imaging lens assembly is effectively an objective lens for fundus imaging, and the imaging lens assembly may include a plurality of optical lenses. Illustratively, the imaging lens assembly 133 includes a primary imaging lens assembly and a relay lens assembly. Wherein, the quantity of optical lens piece and optical lens piece arrange the position and all can set for as required, this the embodiment of the utility model provides a do not do specific restriction. Illustratively, the imaging lens assembly 133 may also include optical lenses for other functions in addition to imaging, such as reflection or optical path folding. Typically, the optical lenses are each coated with an anti-reflective coating to reduce unwanted reflections.

And the image sensor 132 is used for receiving the light which is reflected by the fundus of the user by the light source 131 and imaged by the imaging lens assembly 133, and converting the light into fundus image data. The image sensor 132 actually converts the optical signal into an electrical signal, and may include, but is not limited to, a Charge Coupled Device (CCD), a Complementary Metal Oxide Semiconductor (CMOS), or the like.

In addition, a window is provided on the apparatus body, through which the light source 131 can emit a light beam to the fundus of the user, and the light beam reflected by the fundus can pass through the imaging lens assembly 133 through the window and finally be transmitted to the image sensor 132 to be converted into fundus image data.

In fact, present eye ground camera device includes display and eyepiece, and eyepiece or display all with the eye ground camera module rigid connection, consequently need another person to observe and operate, just can accurate collection this user's eye ground image. The aforesaid can know, the utility model discloses the eye ground camera module is only including the most basic components and parts that realize the eye ground camera function, does not include the eyepiece that is used for except that the user that awaits measuring the measurement user observes to and not with display rigid connection, realize that eye ground camera device has left out eyepiece and display, reduced eye ground camera device's data processing performance's requirement, simplify eye ground camera device's built-in circuit, thereby reduce eye ground camera device's cost, and reduce eye ground camera device's volume, improve eye ground camera device's portability simultaneously.

The embodiment of the utility model provides a through dispose communication module in eye ground camera device, this communication module is used for transmitting the eye ground image data that the eye ground camera module measured the eye ground and obtained, so that terminal equipment handles according to eye ground image data, reduce the processing operation of eye ground camera module to the eye ground image, and reduce the data bulk of eye ground camera module's processing, omit the display function of eye ground camera module simultaneously, reduce eye ground camera module's independent display function, in order to reduce eye ground camera module's volume, the problem that the eye ground camera is bulky and with high costs among the prior art has been solved, can reduce eye ground camera module's performance requirement, thereby reduce cost, and reduce eye ground camera module's display function, thereby reduce eye ground camera module's volume.

Optionally, the communication module is further configured to provide a work control instruction sent by the terminal device to the fundus imaging module to control the fundus imaging module to perform a fundus detection operation.

Specifically, the work control instruction is used to control the fundus imaging operation of the fundus imaging module. For example, the terminal device may send a trigger control instruction to the fundus camera module to trigger the fundus camera module to perform fundus camera operation, thereby triggering the fundus camera module to work through the terminal device; further, the operation control instruction may be used for controlling the operation state and parameters of the fundus imaging module, such as switching and brightness adjustment of the light source, control of parameters of the frame rate, exposure time, gain, and the like of the image sensor, selection of the output format of the image data, and the like, in addition to the trigger control instruction.

Wherein, the communication module can include wired communication module or wireless communication module, and exemplarily, the wireless communication module can include WIFI module, GPRS module, Zigbee module or bluetooth.

Optionally, as shown in fig. 1c, the fundus camera module 130 further includes: a processor 134; the processor 134 is connected to the light source 131 and the image sensor 132, respectively.

A processor 134 for sending operation control instructions to the light source 131, and/or the image sensor 132, and receiving fundus image data output from the image sensor 132.

And the work control instruction is used for controlling the work of the light source and/or the work of the image sensor. The processor 134 may specifically include all components that implement a fundus camera function. Illustratively, the processor 134 may include at least one of a memory described below, a switching circuit for controlling switching of the light source, a peripheral circuit of the image sensor (which may specifically include a driving circuit and a raw analog signal preprocessing circuit), and the like. Further, the processor 131 may also include a focusing module for focusing the fundus of the user with the fundus camera module. In fact, the components and parts that the treater includes can set for as required, and this the embodiment of the utility model discloses do not do specific limitation. It should be noted that the performance requirement of the processor 134 is low, the processor 134 can perform processing operations with low complexity, and store a small amount of necessary data, so that the processor 134 has low cost, simplified circuit, and small volume.

Meanwhile, the fundus camera is indirectly controlled through the terminal equipment outside the fundus camera, and a fundus image is directly displayed in the terminal equipment, so that a working control instruction is sent to the fundus camera module to indirectly control the fundus camera to work, meanwhile, the fundus image collected by the fundus camera can be displayed in the terminal equipment, the display and the fundus camera are mutually independent, and the display and the fundus camera are not rigidly connected, so that when one eye is shot by a shot user, the other eye can observe the fundus image on the display, and therefore, the simultaneous operation and control of the fundus camera can be realized. Specifically, through the communication between with the ground of eye camera device and terminal equipment, the image on the display can be observed to another eyes, and control ground of eye camera device through interactive equipment (like touch-sensitive screen, mouse or keyboard etc.), shoot the ground of oneself, wherein, shoot including but not limited to video recording or snapshot etc. from this, realize that user oneself shoots oneself, avoid must participating in the shooting of ground of eye image through another person, realize omitting the participation of another person, and then reduce the collection that other person participated in the ground of user's oneself image, guarantee the simplicity and the security of collection mode.

Optionally, as shown in fig. 1d, the fundus camera module 130 further includes: a focusing module 135; the focusing module 135 is used to adjust the position of the imaging lens assembly to provide a clear image of the user's fundus.

Specifically, the focusing module 135 is connected to the imaging lens assembly 133 for adjusting a distance between at least one lens of the imaging lens assembly 133 and the image sensor 132, that is, adjusting a longitudinal position of at least one lens of the imaging lens assembly 133 relative to the image sensor 132, so as to obtain a clear fundus image of the user. Or the focusing module 135 may be implemented by adjusting the distance between at least two lenses of the imaging lens assembly 133. That is, focusing is achieved by adjusting the position of at least one lens of the imaging lens assembly 133.

In addition, the focusing module 135 can also adjust the optical center of each lens of the imaging lens assembly 133 to be on the same straight line with the center of the imaging surface of the image sensor 132, that is, adjust the lateral position of the imaging lens assembly 133 relative to the image sensor 132, so as to ensure that the fundus position in the fundus image is located in the central region of the fundus image.

Optionally, the focusing module 135 may include a manual focusing module or an auto focusing module.

The manual focusing module is used for adjusting the position of the imaging lens assembly according to the image displayed by the terminal equipment by a user. That is, the user can adjust the distance between at least one lens of the imaging lens assembly 133 and the image sensor 132 or adjust the distance between at least two lenses of the imaging lens assembly 133 through the manual focusing module. For example, the manual focusing module may include a knob, and a telescopic shaft connected to the imaging lens assembly 133, and the user rotates the knob manually to extend or shorten the telescopic shaft, so as to increase or decrease the distance between the imaging lens assembly 133 and the image sensor 132. The user can manually turn the knob according to the fundus image displayed on the terminal device until the fundus image displayed on the terminal device is clearest.

The automatic focusing module comprises an imaging lens assembly stepping module. The imaging lens assembly stepper module adjusts the position of at least one lens of the imaging lens assembly 133 based on the received step command, where the step command includes a step direction and a step distance. The step instruction is used to control the imaging lens assembly step module, and adjust the position of the imaging lens assembly 133, and specifically may be an instruction sent by the processor 134, or may also be an instruction received by the processor 134 and sent by the terminal device 140 through the communication module 120.

Illustratively, the imaging lens assembly stepper module may be a stepper motor or a voice coil motor, or the like. The stepping motor is connected with the imaging lens assembly 133 and used for driving the telescopic shaft connected with the imaging lens assembly 133 to step forward or step reversely according to the received step instruction, so that the position of the imaging lens assembly is adjusted. The step instruction includes a step direction (e.g., forward or reverse) and a step distance.

Specifically, the processor 134 or the terminal device 120 may control the imaging lens assembly to move by continuously sending a step instruction, and obtain the fundus image data of the imaging lens assembly at the current position in real time, and meanwhile, calculate the resolution of the current fundus image by using an image resolution algorithm for the fundus image data received in real time, find the fundus image data with the highest resolution, and determine a matched step instruction, so as to indirectly control the imaging lens assembly to move to the position corresponding to the fundus image data with the highest resolution, thereby implementing the focusing function. Wherein, image definition algorithm can be the information entropy that the calculation eye ground image contains, the gradient function of calculation eye ground image, or grey level variance function etc. in the calculation eye ground image, in addition, the definition of other methods evaluation images in addition, and to this, the embodiment of the utility model provides a do not do specific restriction.

Alternatively, the processor 134 or the terminal device 120 may control the imaging lens assembly to move by continuously sending a step command, and obtain the fundus image data of the imaging lens assembly at the current position in real time, and at the same time, extract the current characteristic data from the fundus image data received in real time, and compare the current characteristic data with the pre-stored human fundus characteristic data, wherein the pre-stored human fundus characteristic data is extracted from the image with high definition. When the similarity exceeds a set threshold, determining that the fundus image of the imaging lens assembly at the current position has the highest definition, and determining a matched step instruction so as to indirectly control the imaging lens assembly to move to the position corresponding to the fundus image data with the highest definition, thereby realizing the focusing function. Note that the human fundus feature data may be feature data indicating that the fundus is a human fundus. The set threshold may be set as desired, for example, 80% or 90%.

Optionally, the fundus camera device may further include a light energy alarm function, which is used to monitor the energy of the light source in real time, and immediately cut off the light source once the energy reaches the safety energy early warning limit, so as to play an absolute safety protection role for the user.

Optionally, the fundus camera may further include an identification module configured to acquire identification information of the user, for example, by scanning a two-dimensional code or a barcode, where the identification information is used to identify the user. The fundus imaging apparatus may transmit the identification information in combination with the fundus image data to the terminal device. Illustratively, fundus image data is named according to the identification information, and the named fundus image data is transmitted to the terminal device. Alternatively, the fundus imaging apparatus directly transmits the identification information together with the fundus image data to the terminal device.

In addition, fundus camera device can also include the module of other functions, to this, the embodiment of the utility model discloses do not do specific limitation.

In addition, the fundus camera device can be applied to the medical field for checking the physical health condition of a user, and can also be integrated in computer equipment as an identity recognition module for identity recognition. The fundus data in the fundus image is unique for the user, so that the fundus data can be used for identity recognition, and meanwhile, the fundus image acquisition mode has privacy, so that the safety of an identity recognition means is improved.

Example two

Fig. 2a is a schematic structural diagram of a fundus imaging system in the second embodiment of the present invention, and this fundus imaging system 200 specifically includes: the foregoing embodiments provide the fundus imaging apparatus 210 and the terminal device 220. The fundus camera is in communication connection with the terminal equipment through a communication module 211;

the fundus imaging apparatus 210 is used to acquire fundus image data of the user's fundus and transmit the same to the terminal device 220; the terminal device 220 is used to receive and process fundus image data, such as display via the display 221, and to control the fundus imaging apparatus 210 to acquire fundus image data of the user.

Specifically, the fundus imaging apparatus 210 and the terminal apparatus 220 can both refer to the description of the above-described embodiments.

After acquiring the fundus image data of the user, the terminal device 220 may directly store the fundus image data locally and perform processing (for example, image amplification or pathological image analysis), or further transmit the fundus image data to another storage medium (such as a hard disk, a server, or a cloud) for storage.

The embodiment of the utility model provides a dispose fundus camera device and terminal equipment in fundus camera system, and gather fundus image data through fundus camera device, the communication line between fundus camera device and terminal equipment carries out the transmission of fundus image data, and is handled by terminal equipment, for example shows, reduce the processing operation of fundus camera device to fundus image data, and reduce the data bulk of the processing of fundus camera device, omit the display function of fundus camera device simultaneously, reduce the independent display function of fundus camera device, in order to reduce the volume of fundus camera device, can reduce the performance requirement of fundus camera device, thereby reduce the cost, and reduce the display function of fundus camera device, thereby reduce the volume of fundus camera device, simultaneously, replace fundus camera device by terminal number equipment to handle fundus image data, and if the images are displayed, the functions of correctly acquiring, processing and displaying the fundus images of the fundus camera system are ensured.

Optionally, the fundus imaging system 200 further includes: a first data line; the first data line is respectively connected with the fundus camera device and the terminal equipment; the terminal equipment is used for communicating with the communication module through the first data line and supplying power to the fundus camera device through the first data line.

In practice, the first data line is used for communication and power supply. The power supply device of the fundus camera can be omitted by supplying power to the fundus camera through the first data line, and the size and the cost of the fundus camera are further reduced.

Illustratively, as shown in fig. 2b, the first data line 202 is a Universal Serial Bus (USB); the first data line 202 is connected to a universal serial bus interface 201 on the terminal device 220 and a universal serial bus interface 201 on the fundus imaging apparatus 210, respectively; the terminal device 220 is provided with an attachable and ready-to-use module 222, and the attachable and ready-to-use module 222 is used for supplying power to the fundus imaging apparatus 210 via the first data line 202. Can be used by installing The OTG (On-The-Go) function. At this time, the terminal device 220 and the fundus imaging apparatus 210 perform data transmission by the universal serial bus protocol.

Illustratively, as shown in fig. 2c, the first data line 203 is a Power over Ethernet (PoE), and the first data line 203 is connected to the network interface 204 on the terminal device 220 and the network interface 204 on the fundus imaging apparatus 210, respectively; the terminal device 220 is provided with an ethernet power supply module 223, and the ethernet power supply module 223 is configured to supply power to the fundus imaging apparatus 210 via the first data line 203. At this time, the terminal device 220 and the fundus imaging apparatus 210 perform data transmission by the ethernet over power line protocol.

In addition, first data line can also be other types can be used for data transmission and power transmission's circuit simultaneously, to this, the embodiment of the utility model discloses do not do specific limitation.

Optionally, the fundus imaging apparatus further includes: a power supply module; and the power supply module is used for supplying power to the fundus camera device. Specifically, the power module includes a built-in power module or an external power module. The built-in power module can include the battery, and is specific, and battery type and quantity can be set for as required, to this, the embodiment of the utility model provides a do not do specific restriction.

Through for the configuration power module of eye ground camera device, eye ground camera device can the exclusive use to storage eye ground image data, and can be in later stage with eye ground image data transmission to terminal equipment, avoid eye ground camera device can only normally work through terminal equipment power supply, thereby reduce eye ground camera device to terminal equipment's dependence, increase eye ground camera device's application scope.

Specifically, as shown in fig. 2d, the fundus imaging system 200 further includes: a second data line 205; the second data line is connected to the fundus imaging apparatus 210 and the terminal device 220, respectively, for communication between the fundus imaging apparatus 210 and the terminal device 220. The power supply module 213 is a built-in power supply module; the second data line 205 is also used for the terminal device 220 to charge the built-in power supply module. The power supply module 213 supplies power to the fundus imaging module 212 and the communication module 211. Meanwhile, the power supply module 223 of the terminal device 220 may charge the built-in power supply module through the second data line 205. Wherein the second data line may comprise a universal serial bus or an ethernet supply line.

Alternatively, as shown in fig. 2e, the communication module in the fundus imaging apparatus 210 includes: a wireless communication module 214; the wireless communication module 214 is connected to the fundus camera module 212, more specifically, to a processor in the fundus camera module 212, and is configured to transmit fundus image data to the terminal device 220 by wireless communication. More specifically, the wireless communication module 214 in the fundus imaging apparatus 210 is connected in wireless communication with the wireless module 224 in the terminal device 220, and transmits fundus image data and operation control instructions in a wireless communication manner. Wherein, wireless communication mode can include but not limited to wireless transmission modes such as wifi or bluetooth, and simultaneously, wireless communication module and wireless module can be according to the corresponding setting of wireless transmission mode, to this, the embodiment of the utility model provides a do not do specific restriction.

By using the wireless communication mode as the communication mode between the fundus camera device and the terminal equipment, the wiring of a wired transmission mode can be reduced, the circuit of the fundus camera system is simplified, the size of the fundus camera system is reduced, and the cost of the fundus camera system is reduced.

Optionally, as shown in fig. 2f in particular, the fundus camera module 212 includes a focusing module 215, and correspondingly, the terminal device 220 may further include: a fundus camera focusing module 225, the fundus camera focusing module 225 configured to determine a step instruction from the fundus image data.

The fundus shooting focusing module is specifically used for the terminal equipment to determine the definition of a fundus image formed by fundus image data of the imaging lens assembly at the current position according to an image definition algorithm, find the position with the highest definition according to the definition of the fundus image formed by the fundus image data of the imaging lens assembly at different positions, determine the relation between the position with the highest definition and the position at the current moment corresponding to the position of the imaging lens assembly at the current moment, and determine a stepping instruction. Then, the terminal equipment sends the step instruction to the fundus camera module through the communication module so that the focusing module in the fundus camera module controls the imaging lens assembly to move, the position of the imaging lens assembly is adjusted to the position with the highest definition, and the focusing operation is completed.

The fundus camera is indirectly controlled by the terminal equipment to focus, the focusing function of the fundus camera is transferred to the terminal equipment to be completed, the workload of the fundus camera is reduced, but the focusing function of the fundus camera is realized, so that more functions are realized under the conditions of low cost and small size of the fundus camera.

Optionally, as shown in fig. 2g in particular, the fundus camera module 212 includes a focusing module 215, and correspondingly, the terminal device 220 may further include: an identification module 226, the identification module 226 being configured to extract feature data from the fundus image data, determine from the feature data whether a fundus image formed by the fundus image data is clear, and identify the user from the feature data.

The identification module is specifically used for extracting characteristic data from fundus image data by the terminal equipment and carrying out identity identification or clear judgment on the characteristic data.

The identification may be to compare the characteristic data with characteristic data of the fundus image of the user stored in a database established in advance, respectively. The database stores the characteristic data of the fundus images of the users and the corresponding identity information (such as sex, age, name, certificate information and the like) of the fundus images of the users. And taking the identity information of the fundus image of the user to which the feature data with the highest similarity belongs as the identification result of the fundus image data.

And the clear determination may be to compare the characteristic data with pre-stored characteristic data of the human fundus oculi. Human fundus characteristic data can refer to the characteristic data of extracting from the high arbitrary user's of definition fundus image, or can also be to each user's fundus image analysis, the characteristic data of abstracting out, and in addition, human fundus characteristic data's acquisition mode has other modes still, and to this, the embodiment of the utility model provides a do not do specific restriction. And comparing the characteristic data corresponding to the fundus images formed by the fundus image data of the imaging lens assembly at different positions with the characteristic data of the human fundus respectively to obtain the similarity. And the similarity corresponding to the fundus image data of the imaging lens assembly at different positions is sent to a fundus camera focusing module, the fundus camera focusing module takes the position with the highest similarity as the position with the highest definition, and the relationship between the position with the highest definition and the position at the current moment is determined corresponding to the position of the imaging lens assembly at the current moment, and a stepping instruction is determined. Then, the terminal equipment sends the step instruction to the fundus camera module through the communication module so that the focusing module in the fundus camera module controls the imaging lens assembly to move, the position of the imaging lens assembly is adjusted to the position with the highest definition, and the focusing operation is completed.

The terminal device may determine the step instruction only through the fundus imaging focusing module, or may determine the step instruction through both the fundus imaging focusing module and the identification module.

In addition, the fundus imaging system can be combined with the above structures at will, and the embodiment of the present invention provides only an exemplary structure, but the present invention cannot be considered as limiting the fundus imaging system provided by the embodiment of the present invention.

Clear judgement to the eye ground image through terminal equipment to send the step instruction of matching, with the realization focuses, perhaps carry out identification to the eye ground image, judge the definition and the identification function of eye ground camera device and transfer to terminal equipment and accomplish, reduce eye ground camera device's work load, nevertheless compromise the function of focusing that realizes eye ground camera device, thereby under the circumstances that eye ground camera device is with low costs and small, realize more functions.

EXAMPLE III

Fig. 3 is a flowchart of a fundus imaging method in the third embodiment of the present invention, and this embodiment is applicable to the situation of collecting the fundus image of the user, and this method can be executed by any of the fundus imaging systems provided by the present invention. As shown in fig. 3, the method of this embodiment specifically includes:

and S310, receiving a work control instruction input by a user through the terminal equipment, and sending the work control instruction to the fundus imaging device.

The embodiment of the present invention provides a terminal device, an eye fundus imaging apparatus, and a work control instruction, etc., which can be referred to the description of the above embodiments.

And S320, shooting the fundus of the user through the fundus camera, acquiring fundus image data and sending the fundus image data to the terminal equipment.

S330, processing the fundus image data through the terminal equipment, wherein the processing comprises displaying.

The fundus image data may be displayed by a terminal device.

The user can rotate the manual focusing module on the fundus camera device according to the displayed fundus image data so as to realize manual focusing.

Optionally, after the fundus image data is processed by the terminal device, the method further includes:

the terminal equipment determines a stepping instruction according to the received fundus image data and sends the stepping instruction to the fundus camera device so that the fundus camera device adjusts the imaging lens assembly to move and realize focusing;

and after the terminal equipment sends out a target stepping instruction, displaying focusing completion information to a user in a display, wherein the target stepping instruction is used for moving an imaging lens assembly of the fundus camera to a position with the highest imaging definition.

Specifically, the terminal device may determine the step instruction only through the fundus imaging focusing module, and may also determine the step instruction through both the fundus imaging focusing module and the identification module.

The embodiment of the utility model provides a send work control instruction to eye ground camera device through user operation terminal equipment, with the eye ground that this user was shot to control eye ground camera device, and the eye ground image data that will gather send to terminal equipment and handle and show, realize that terminal equipment replaces eye ground camera device to carry out the demonstration of eye ground image data, the demonstration function of eye ground camera device has been left out, simplify eye ground camera device's operation, thereby, reduce eye ground camera device's volume and cost, and simultaneously, the user can realize the operation of self eye ground image shooting through self operation, leave out observation user's operation, simplify the complexity of shooing the eye ground image, and simultaneously, avoid observation user to acquire this user's the eye ground condition, improve this user's eye ground image data's security.

Optionally, after the fundus image data is displayed by the terminal device, the method further includes: and the terminal equipment identifies the identity of the user according to the fundus image data.

In particular, fundus image data may be used to identify the user and, thus, may be used for user identification. The terminal equipment can identify the user identity through the identification module. In addition, the fundus camera system can be operated by a single person, so that the way for other people to acquire the fundus image data of the user is reduced, the safety of the fundus image is improved, and the safety of the body identification means is ensured.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A fundus imaging apparatus, comprising: the device comprises a device body, a communication module and an eyeground camera module;

the light source is used for illuminating the fundus of the user;

2. The fundus imaging apparatus according to claim 1, wherein said communication module is further configured to provide an operation control instruction transmitted from a terminal device to said fundus imaging module to control said fundus imaging module to perform the detection operation of the fundus.

3. The fundus camera according to claim 1 or 2, wherein the fundus camera module further comprises: the processor is respectively connected with the light source and the image sensor;

the processor is used for sending work control instructions to the light source and/or the image sensor and receiving fundus image data output by the image sensor.

4. A fundus camera according to claim 3, wherein said fundus camera module further comprises: a focusing module;

the focusing module is used for adjusting the position of the imaging lens assembly so as to enable the fundus of the user to be imaged clearly.

5. A fundus camera according to claim 4, wherein said focusing means comprises a manual focusing means;

the manual focusing module is used for adjusting the position of the imaging lens assembly according to the image displayed by the terminal equipment by the user.

6. A fundus camera according to claim 4, wherein said focusing module comprises an auto-focusing module; the automatic focusing module comprises an imaging lens assembly stepping module;

the imaging lens assembly stepping module is used for adjusting the position of the imaging lens assembly according to a received stepping instruction, the stepping instruction comprises a stepping direction and a stepping distance, and the stepping instruction is an instruction which is received by the processor and is sent by the terminal equipment through the communication module.

7. A fundus imaging system, comprising: the fundus camera of any of claims 1-6 and a terminal device, the fundus camera being in communication connection with the terminal device through a communication module;

8. The system of claim 7, further comprising: a first data line; the first data line is respectively connected with the fundus camera device and the terminal equipment;

the terminal equipment is used for communicating with the communication module through the first data line and supplying power to the fundus camera device through the first data line.

9. The system of claim 8, wherein the first data line is a universal serial bus; the first data line is respectively connected with a universal serial bus interface on the terminal equipment and a universal serial bus interface on the fundus camera device; the terminal equipment is provided with an installing available module which is used for supplying power to the fundus camera device through the first data line.

10. The system according to claim 8, wherein the first data line is an ethernet power line, and the first data line is connected to a network interface on the terminal device and a network interface on the fundus camera, respectively; the terminal equipment is provided with an Ethernet power supply module, and the Ethernet power supply module is used for supplying power to the fundus camera device through the first data line.

11. The system of claim 7, wherein the fundus camera further comprises: a power supply module;

and the power supply module is used for supplying power to the fundus camera device.

12. The system of claim 11, wherein the power module comprises an internal power module or an external power module.

13. The system of claim 11, further comprising: a second data line;

the second data line is respectively connected with the fundus camera and the terminal equipment and is used for communication between the fundus camera and the terminal equipment.

14. The system of claim 13, wherein the power module is a built-in power module; the second data line is also used for charging the built-in power supply module by the terminal equipment.

15. The system according to claim 11 or 12, wherein the communication module comprises: a wireless communication module;

the wireless communication module is connected with the processor and used for sending the fundus image data to the terminal equipment in a wireless communication mode.

16. The system of claim 8, wherein the fundus camera module comprises a focus module, the terminal device further comprising: and the fundus photographing focusing module is used for determining a stepping instruction according to the fundus image data.

17. The system of claim 9, wherein the terminal device further comprises: the identification module is used for extracting characteristic data from the fundus image data, judging whether a fundus image formed by the fundus image data is clear or not according to the characteristic data, and identifying the identity of the user according to the characteristic data.