[go: up one dir, main page]

WO2012115408A2 - Capteur d'image, et appareil photographique comprenant ledit capteur - Google Patents

Capteur d'image, et appareil photographique comprenant ledit capteur Download PDF

Info

Publication number
WO2012115408A2
WO2012115408A2 PCT/KR2012/001255 KR2012001255W WO2012115408A2 WO 2012115408 A2 WO2012115408 A2 WO 2012115408A2 KR 2012001255 W KR2012001255 W KR 2012001255W WO 2012115408 A2 WO2012115408 A2 WO 2012115408A2
Authority
WO
WIPO (PCT)
Prior art keywords
signal
image
motion
output
image sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/001255
Other languages
English (en)
Korean (ko)
Other versions
WO2012115408A3 (fr
Inventor
홍승표
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pixelplus Co Ltd
Original Assignee
Pixelplus Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pixelplus Co Ltd filed Critical Pixelplus Co Ltd
Priority to CN201280008836.5A priority Critical patent/CN103404125B/zh
Publication of WO2012115408A2 publication Critical patent/WO2012115408A2/fr
Publication of WO2012115408A3 publication Critical patent/WO2012115408A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/65—Control of camera operation in relation to power supply
    • H04N23/651—Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components

Definitions

  • the present invention relates to an image sensor and a photographing apparatus including the same, and more particularly, to a technology for converting an external optical image signal into an electrical image signal.
  • an image sensor is a device that converts an external optical image signal into an electrical image signal.
  • CMOS image sensors are image sensors fabricated using CMOS fabrication techniques.
  • each pixel stores the light signal radiated from the corresponding part of the object after converting it into electrons using a photodiode, and converts the amount of charge appearing in proportion to the accumulated number of electrons into a voltage signal and outputs the voltage signal.
  • CMOS image sensors using complementary-MOS (CMOS) technology and CCD image sensors using Charge Coupled Device (CCD) technology, all of which are manufactured using semiconductor technology.
  • CCD Charge Coupled Device
  • CMOS image sensor is a device widely used in various electronic products, for example, a mobile phone, a camera for a personal computer (PC), a video camera, a digital camera, and the like.
  • CMOS image sensor is simpler to drive than the CCD used as an image sensor, and it is possible to integrate a signal processing circuit into one chip so that a system on chip (SoC) can be used to make the module smaller. Let's do it.
  • SoC system on chip
  • CMOS conventional set-up
  • a photographing apparatus including an image sensor such as a digital camera, a camcorder, and a portable terminal in which a camera function is implemented, acquires an image signal by capturing an image input through a lens with an image sensor.
  • the video signal is converted into digital video data and displayed on a liquid crystal screen as a preview screen.
  • the image data is compressed and stored as photo data.
  • FIG. 1 is a block diagram of a photographing apparatus including a conventional image sensor.
  • the conventional photographing apparatus includes a sensor unit 10 and a video recorder 20.
  • the sensor unit 10 includes an image sensor 11, a light emitting element 12, an image sensor driver 13, a pyroelectric infrared sensor 14, hereinafter referred to as a 'PIR sensor', and a PIR sensor.
  • the drive unit 15 is included.
  • the video recorder 20 is formed of a digital video recorder including a hard disk 21.
  • the image sensor 11 photographs a subject under the control of the image sensor driver 13 and outputs an analog or digital video image output signal to the video recorder 20.
  • the light emitting element 12 may be formed of a light emitting diode (LED) or an infrared (IR) light emitting diode (LED) to output an infrared light source to the outside.
  • LED light emitting diode
  • IR infrared
  • the image sensor driver 13 controls the driving of the image sensor 11, converts an image acquired through the image sensor 11, and outputs an image output signal to the video recorder 20.
  • the PIR sensor 14 detects the presence or absence of a person under the control of the PIR sensor driver 15 and outputs a PIR sensor detection signal to the video recorder 20.
  • the PIR sensor driver 15 controls the driving of the PIR sensor 14, converts an image acquired through the PIR sensor 14, and outputs a PIR sensor detection signal to the video recorder 20.
  • the video recorder 20 includes a hard disk 21 therein to store an image output signal applied from the sensor unit 10 and a PIR sensor detection signal.
  • the conventional photographing apparatus detects the presence or absence of a person through the sensing of the PIR sensor 14.
  • the PIR sensor 14 when the PIR sensor 14 is applied to a security system, when the presence or absence of a person or an animal is detected by the PIR sensor 14, the image sensor 11 stores an image on the hard disk 21, and the person Alternatively, when the presence of the animal is confirmed, a warning sound is generated externally.
  • the conventional imaging apparatus further includes a separate PIR sensor 14 in addition to the image sensor 11 to detect the presence or absence of a human or animal. Accordingly, a line for detecting an image output signal and a line for detecting a PIR sensor detection signal, that is, two lines, must be provided between the sensor unit 10 and the video recorder 20.
  • the hot wire sensor device is a device for detecting the presence or absence of the human body in the monitoring area by detecting a change in its value using infrared light.
  • the hot wire sensor device is divided into two types, active and passive, according to its operation principle.
  • the active heating sensor device installs the receiver and the transmitter in a fixed place at a certain place and in a certain direction, and receives the infrared light from the transmitter. Device.
  • the passive heating sensor device is a device that installs only a pyroelectric infrared sensor having a wide viewing angle, and when the human body approaches the viewing angle, the sensor detects a corresponding infrared ray and generates an alarm.
  • the PIR sensor 14 used as a motion detection sensor uses a passive infrared detection method and uses a detection sensor called an infrared sensor.
  • infrared sensors are very sensitive to changes in ambient temperature, which can cause a lot of malfunctions. In addition, it cannot be used by being installed next to a lighting device such as an incandescent lamp or a fluorescent lamp that generates high heat formed inside the lighting case.
  • the camera system used in surveillance and the like in the terminal market recently uses a lot of functions for power consumption such as the built-in motion detection function to cut off the power of the video output terminal depending on the presence or absence of motion.
  • various functions using motion detection are built into the camera system, such as the ability to power off the video output stage when there is no motion.
  • IR-LEDs Infrared Light Emitting Diodes
  • the motion brightness should be maintained at an appropriate level.
  • the brightness of the IR-LED in order to maintain the brightness of the image properly in low light conditions, the brightness of the IR-LED must be turned to an appropriate level, which limits the power consumption. .
  • the present invention has been made to solve the above-mentioned conventional problems and has the following object.
  • the IR-LED control function and motion detection function are built in the image sensor at the same time to turn on the IR-LED only when the motion detection function is activated to reduce unnecessary power consumption. To help.
  • the image signal when the image output signal is applied from the image sensor, the image signal is stored in the storage device. When the image output signal is not applied, the image signal is switched to the power save mode to reduce the current consumed.
  • the motion detection function is performed in the image sensor without including a separate PIR sensor, the system can be simplified and the cost of the system can be reduced.
  • Image sensor for signal processing the brightness information applied from the illumination sensor;
  • a controller which receives a digital signal and an image signal applied from an analog-digital converter and processes the signal;
  • a motion detector for detecting a motion from an output image of the controller and outputting a power off signal and a light emission control signal;
  • a digital analog converter for converting an output image of the control unit into an analog signal and selectively outputting an image output signal converted into an analog signal according to whether the power-off signal is activated;
  • a light emission controller for selectively controlling a turn-on or turn-off operation of the light emitting unit according to the light emission control signal.
  • the imaging apparatus including an image sensor according to an embodiment of the present invention, the illumination sensor for sensing the brightness information; A light emitting unit operating in correspondence with a level of brightness information and being turned on or turned off according to an operation control signal; And an image sensor that detects motion from an image signal applied from the lens, selectively outputs an image output signal according to whether the motion is detected, and selectively outputs an operation control signal, and the image sensor includes a brightness applied from the illuminance sensor.
  • An analog to digital converter for signal processing information;
  • a controller which receives a digital signal and an image signal applied from an analog-digital converter and processes the signal;
  • a motion detector for detecting a motion from an output image of the controller and outputting a power off signal and a light emission control signal;
  • a digital analog converter for converting an output image of the control unit into an analog signal and selectively outputting an image output signal converted into an analog signal according to whether the power-off signal is activated;
  • a light emission controller for outputting an operation control signal for selectively controlling the turn on or turn off operation of the light emitting unit according to the light emission control signal.
  • the present invention provides the following effects.
  • the IR-LED control function and motion detection function are built in the image sensor at the same time to turn on the IR-LED only when the motion detection function is activated to reduce unnecessary power consumption. To help.
  • the image sensor detects whether a person, an animal, or an object is moved, and determines whether the image signal is output according to the detection, thereby reducing current consumption according to the driving of the image signal output.
  • the storage device stores the video signal according to whether the image sensor outputs the video signal, the current consumption according to the video signal storage can be reduced, and the storage space of the storage device can be freely used.
  • the motion detection function is performed in the image sensor without including a separate PIR sensor, the system can be simplified and the cost of the system can be reduced.
  • the illumination sensor determines the illumination and to turn on the infrared light emitting diode at low light provides an effect that can solve the weakness of motion detection at low light.
  • FIG. 1 is a block diagram of a photographing apparatus including a conventional image sensor.
  • FIG. 2 is a block diagram of a photographing apparatus including an image sensor according to an exemplary embodiment of the present invention.
  • FIG. 3 is a detailed configuration diagram of the image sensor of FIG. 2.
  • FIG. 3 is a detailed configuration diagram of the image sensor of FIG. 2.
  • FIG. 4 is a view for explaining the image sensor control method of FIG.
  • FIG. 2 is a block diagram of a photographing apparatus including an image sensor according to an exemplary embodiment of the present invention.
  • An embodiment of the present invention includes a photographing apparatus 100 and a storage apparatus 200.
  • the photographing apparatus 100 includes an illuminance sensor 110, a lens 120, a light emitting element 130, and an image sensor 140.
  • the storage device 200 includes a synchronization detector 210 and a storage 220.
  • the storage device 200 preferably comprises a digital video recorder or the like for storing digital images.
  • the storage unit 220 preferably includes a storage medium such as a hard disk.
  • the illuminance sensor 110 detects brightness information of the surroundings, and the brightness information detected by the illuminance sensor 110 is output to the image sensor 140.
  • the image sensor 140 selectively controls the turn on or turn off operation of the light emitting device 130 according to whether the motion is detected in the image input signal applied from the lens 120.
  • LEDs Light Emitting Diodes
  • IR-LEDs Infrared Light Emitting Diodes
  • the illumination sensor 110 is used to control the light emitting device 130 according to the illumination of the surrounding environment.
  • the image sensor 140 may be provided with an analog-to-digital converter to receive the sensing result of the illuminance sensor 110 and perform signal processing.
  • the image sensor 140 photographs a subject through the lens 120 and outputs an analog or digital video image output signal to the storage device 200.
  • the image sensor 140 converts an optical image (ie, an optical object signal) input through the external lens 120 into an electrical signal and outputs the electrical signal.
  • an electrical signal output every frame is referred to as a frame image.
  • the image sensor 140 outputs a frame image having a constant frame rate or a varying frame rate.
  • the image sensor 140 may be of a Charge Coupled Device (CCD) type or a Complementary Metal-Oxide-Silicon (CMOS) type.
  • CCD Charge Coupled Device
  • CMOS Complementary Metal-Oxide-Silicon
  • the light emitting device 130 includes a light emitting diode (LED) or an infrared light emitting diode (IR) to output an infrared light source to the outside.
  • LED light emitting diode
  • IR infrared light emitting diode
  • the image sensor 140 converts an image acquired through the lens 120 and outputs an image output signal to the storage device 200.
  • the image sensor 140 detects the movement of a person, an animal, or an object and outputs an image output signal to the storage device 200.
  • the image sensor 140 when the image sensor 140 is applied to a security system, when the presence or absence of a person or an animal is detected by the image sensor 140, the image is stored in the storage device 200, and when the presence of the person or the animal is confirmed. A warning sound will be generated externally.
  • the synchronization detector 210 detects a synchronization signal from an analog image signal applied from the image sensor 140.
  • the analog video signal includes a synchronization signal every frame. When such a synchronization signal is detected, it indicates that a video signal is being input.
  • the synchronization detector 210 recognizes that motion is detected and stores the image signal in the storage 220.
  • the storage unit 220 may be implemented as a hard disk or the like, and stores the image signal applied through the synchronization detector 210.
  • FIG. 3 is a detailed block diagram illustrating the image sensor 140 of FIG. 2.
  • the image sensor 140 includes an analog to digital converter 141, a controller 142, a motion detector 143, a digital analog converter (DAC) 144, and a light emission controller 145.
  • analog to digital converter 141 a controller 142, a motion detector 143, a digital analog converter (DAC) 144, and a light emission controller 145.
  • DAC digital analog converter
  • the analog-digital converter (ADC) 141 provided in the image sensor 140 converts an analog signal for brightness information applied from the illumination sensor 110 into a digital signal and controls the controller 142. Output to
  • the controller 142 outputs a digital signal applied from the analog-to-digital converter 141 to the emission controller 145, and according to an internal control signal, an image signal of a subject photographed from the lens 120 of the image sensor 140. Is controlled and output to the motion detector 143.
  • the motion sensor 143 may be included in the image sensor 140 to detect the movement of a person or an animal without the PIR sensor.
  • the image sensor 140 allows the PIR sensor to detect whether or not the object moves.
  • the motion detector 143 detects the occurrence of motion in the video signal applied from the controller 142, outputs the power off signal P_OFF to the digital-to-analog converter 144, and outputs the emission control signal LED_CON to the emission controller 145.
  • the digital-to-analog converter 144 converts the digital video signal applied from the controller 142 into an analog signal under the control of the power off signal P_OFF and selectively outputs the video output signal to the storage device 200.
  • the light emission controller 145 controls the operation state of the light emitter 130 according to the illumination information applied from the controller 142 and the light emission control signal LED_CON applied from the motion detector 143 to detect the illumination level and motion. Accordingly, the turn on or turn off operation of the light emitting device provided in the light emitting unit 130 is selectively controlled.
  • the light emitting unit 130 may include a light emitting device such as a light emitting diode (LED) or an infrared light emitting diode (IR).
  • a light emitting device such as a light emitting diode (LED) or an infrared light emitting diode (IR).
  • the light emission controller 145 stores operation information for controlling the turn on or turn off operation of the light emitter 130.
  • the light emission controller 145 outputs an operation control signal for controlling the operation of the light emitter 130 according to the operation information read from the motion detector 143 to the light emitter 130.
  • the motion detector 143 deactivates the power off signal P_OFF (for example, to a logic low level) when the motion is detected from the image signal applied from the controller 142, and outputs the output signal to the digital-to-analog converter 144.
  • the signal LED_CON is activated (for example, at a logic high level) and output to the light emission controller 145.
  • whether the digital-to-analog converter 144 is output depends on whether the power off signal P_OFF output from the motion detector 143 is activated.
  • the digital-to-analog converter 144 when motion is detected in the video signal, the digital-to-analog converter 144 is in an operating state and outputs the video signal as it is, and the light emitting control unit 145 is in an operating state so as to turn on the light emitting unit 130. Will output a signal.
  • the digital-to-analog converter 144 outputs an image output signal to the storage device 200 only when the power off signal P_OFF is deactivated and applied from the motion detector 143.
  • the motion detector 143 outputs to the digital-to-analog converter 144 by activating the power off signal P_OFF (for example, to a logic high level) when motion is not detected from the video signal applied from the controller 142.
  • the light emission control signal LED_CON is deactivated (for example, at a logic low level) and output to the light emission controller 145.
  • the power supplied to the digital-to-analog converter 144 is cut off according to the power off signal P_OFF, so that the video signal is not output, and the light emission controller 145 turns the light emitter 130. Outputs a control signal to turn off.
  • the synchronization detector 210 of the storage device 200 detects a synchronization signal from an analog image signal applied from the digital-to-analog converter 144.
  • the motion detection unit 143 indicates the motion detected. Therefore, the sync detector 210 detects the sync signal and stores the analog video signal in the storage 220.
  • the motion detector 143 represents a situation where no motion is detected, and thus the storage device 200 operates in a power save mode.
  • the power save mode since the sync signal is not detected by the sync detector 210, the analog video signal is not stored in the storage 220.
  • the storage device 200 ends the power save mode and stores the image signal in the storage unit 220.
  • the embodiment of the present invention determines whether to output the light emission control unit 145 according to whether the light emission control signal LED_CON output from the motion detection unit 143.
  • the motion detector 143 detects a vertical synchronization signal from an image signal applied from the controller 142.
  • the motion detector 143 does not perform a motion detection operation every frame, but performs a motion detection operation only once every several frames. For example, the motion detector 143 determines whether motion is detected at intervals of the T3 section in FIG. 4. In this case, an operation interval at which the motion detector 143 detects a motion is set in consideration of the information of the input image.
  • the motion detection unit 143 detects motion in the normal operation mode section of T1
  • the light emitting unit 130 is always turned on at low light.
  • the motion detector 143 activates the emission control signal LED_CON to a high level and outputs it to the emission controller 145, and deactivates the power off signal P_OFF to a low level and outputs it to the digital analog converter 144.
  • the motion controller 145 activates and outputs the light emission control signal LED_CON, and the light emission controller 145 controls the light emitter 130 to be turned on in low light.
  • the motion detector 143 switches to the power down mode as in the T2 section to reduce power consumption.
  • the motion detector 143 when no motion is detected during the T4 section of FIG. 4, the motion detector 143 enters the power down mode as in T2.
  • the frame interval of the T4 in which the motion detector 143 suppresses the power down mode may be preset according to a user's intention.
  • the light emission control signal LED_CON is deactivated to a low level and output to the light emission controller 145, and the power off signal P_OFF is activated to a high level and output to the digital analog converter 144.
  • the light emission control signal LED_CON is not continuously deactivated to a low level in the power down mode section of T2, but toggles to a high and low level every several frame intervals to improve illuminance during the motion detection operation. do.
  • the motion detector 143 controls the light emission control signal LED_CON to be in an activated state.
  • the motion detector 143 indicates a situation in which the brightness of the image needs to be appropriate for the motion detection operation. Therefore, the light emission controller 145 turns on the light emission unit 130.
  • the motion detection unit 143 does not perform a motion detection operation, and thus indicates a situation in which the brightness of the image does not need to be at an appropriate level. Therefore, the light emission controller 145 causes the light emission unit 130 to be turned off.
  • the power save mode is terminated and the light emitter 130 is turned on again.
  • the motion detection unit 143 described above may be a variety of ways to detect the motion.
  • a process of receiving a frame image from the control unit 142 a process of generating a difference image between the input frame image of the current frame and the previous frame, and projecting the difference image onto a reference axis to obtain projection data Process, extracting feature information from the projection data, analyzing the trajectory of the feature information, and obtaining the motion information of the subject using the analyzed trajectory.
  • a sequential (or non-sequential) frame image is received from the lens 120 through the controller 142.
  • the input frame image may be a color image or a black and white image.
  • the overall amount of calculation of the motion detector 143 may be reduced in detecting the motion of the subject.
  • the frame image input to the motion detector 143 is stored in the image storage unit. Assuming that the currently received frame is the n-th frame, the image storage unit stores a frame image corresponding to the previous frame (n-1 th frame).
  • a difference image is generated using the current frame image (n-th frame image) input to the motion detector 143 and the previous frame image (n-1 th frame image) read from the image storage unit. For any pixel location, set the difference in pixel values in the two frame images to the pixel values in the difference image.
  • the motion detection width means a motion direction, a motion size, etc. of a subject that can be detected by the motion detector 143 according to an exemplary embodiment of the present invention.
  • the motion detector 143 projects the difference image described above onto a reference axis. Projection data about the reference axis is obtained by projecting the difference image onto the reference axis.
  • the projected data is grouped according to a preset method, and feature information is generated through the difference of each divided group.
  • the generated feature information is stored in the feature information storage unit and used to acquire motion information such as a trajectory.
  • the presence or absence of motion of the subject is determined by determining whether the trajectory of the feature information over time has a preset form (for example, a sine waveform) based on the feature information.
  • a preset form for example, a sine waveform
  • the motion detector 143 may detect motion in the following manner.
  • the pixel array of the image sensor 140 including the pixels in a matrix form detects light from a subject and outputs the light as an electric signal.
  • the motion detector 143 selects the electric signals of the pixel array in units of columns.
  • the electrical signal selected in units of columns is compared with a reference voltage and output as digital data of 1 bit. Thereafter, one bit of digital data is temporarily stored, and the current frame is compared with the previously stored previous frame. As a result of the comparison, the number of " 1 " or " 0 " included in the data is counted and compared with the set reference value to determine whether there is motion.
  • the motion detector 143 may detect motion in the following manner.
  • the input video image is converted into digital image data through the analog-to-digital converter 141 and output as current frame data.
  • the motion detector 143 converts the row pixel values in units of columns and stores them as reference frame data.
  • the correlation coefficient is calculated by comparing the current frame data of the image with the stored reference frame data and stored therein.
  • the maximum value of the correlation coefficient is retrieved and the corresponding local motion vector is output. Then, the motion vector of the entire image is obtained using the local motion vector.
  • the embodiment of the present invention stores the image signal in the storage unit 220 only when the image signal is detected, it is possible to prevent the load from being applied to the storage unit 220 and the storage space of the storage unit 220. May be used comfortably and may contribute to extending the product life of the storage device 200. In addition, it is possible to reduce the current consumption due to the input / output, driving and storage of the image signal.
  • the embodiment of the present invention detects the illuminance through the illuminance sensor 110, and turns on the light emitting device through the light emitting unit 130 in a dark environment of low illuminance. Accordingly, the image sensor 140 receives an image related to motion so that it is not difficult to detect the motion through the motion detector 143.
  • the embodiment of the present invention allows the light emitting unit 130 to be turned on only when the light emission control signal LED_CON is activated at low light so as to reduce power consumption and heat generation of the system generated by the light emitting unit 130. .
  • the motion detection function according to the motion detector 143 and the light emission part 145 control function according to the light emission controller 145 are simultaneously incorporated in the image sensor 140 to emit light only when motion is detected.
  • the unit 130 By turning on the unit 130, it is possible to reduce unnecessary power consumption.
  • the light emitting unit 130 is turned off in the frame that does not perform the motion detection function, and the light emitting unit 130 is turned on only in the frame which performs the motion detection function. 130) to reduce the power consumption and heat generation of the system.
  • This embodiment of the present invention is attached to a closed circuit television (CCTV), a digital video recorder (DVR), a door camera, a digital camera, a camcorder, or a portable communication device. It can be applied to an imaging device such as a camera.
  • CCTV closed circuit television
  • DVR digital video recorder
  • door camera a door camera
  • digital camera a digital camera
  • camcorder or a portable communication device. It can be applied to an imaging device such as a camera.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

La présente invention concerne un capteur d'image, ainsi qu'un appareil photographique comprenant ledit capteur. Le capteur d'image comprend : un convertisseur analogique-numérique, traitant un signal d'informations de brillance appliqué à partir d'un capteur d'éclairement ; une unité de commande, recevant un signal numérique et un signal d'image appliqués à partir du convertisseur analogique-numérique afin de traiter le signal ; un détecteur de mouvement, détectant un mouvement à partir d'une image de sortie de l'unité de commande, afin de sortir un signal de mise hors circuit et un signal de commande d'émission lumineuse ; un convertisseur numérique-analogique, convertissant l'image de sortie de l'unité de commande en un signal analogique, et sortant sélectivement le signal analogique, lequel est converti à partir du signal de sortie d'image, en fonction de l'activation ou non du signal de mise hors circuit ; et une unité de commande d'émission lumineuse, commandant de manière sélective une opération de mise en marche ou de mise sur arrêt d'une unité d'émission de lumière en fonction du signal de commande d'émission lumineuse.
PCT/KR2012/001255 2011-02-21 2012-02-20 Capteur d'image, et appareil photographique comprenant ledit capteur Ceased WO2012115408A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280008836.5A CN103404125B (zh) 2011-02-21 2012-02-20 图像传感器及包括该图像传感器的拍摄装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110015149A KR101262745B1 (ko) 2011-02-21 2011-02-21 이미지 센서 및 이를 포함하는 촬영 장치
KR10-2011-0015149 2011-02-21

Publications (2)

Publication Number Publication Date
WO2012115408A2 true WO2012115408A2 (fr) 2012-08-30
WO2012115408A3 WO2012115408A3 (fr) 2012-11-29

Family

ID=46721314

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/001255 Ceased WO2012115408A2 (fr) 2011-02-21 2012-02-20 Capteur d'image, et appareil photographique comprenant ledit capteur

Country Status (3)

Country Link
KR (1) KR101262745B1 (fr)
CN (1) CN103404125B (fr)
WO (1) WO2012115408A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109287052A (zh) * 2018-11-07 2019-01-29 泉州思力科电子科技有限公司 一种灯具开关芯片及该灯具开关芯片的控制方法
US10218980B2 (en) 2013-09-27 2019-02-26 Hanwha Aerospace Co., Ltd Camera compressing video data

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102074385B1 (ko) * 2013-09-30 2020-02-06 한국전자통신연구원 발광다이오드 구동 제어 장치 및 그것의 제어 신호 제공 방법
KR102290287B1 (ko) 2014-10-24 2021-08-17 삼성전자주식회사 이미지 신호와 근접 신호를 동시에 생성하는 이미지 센서
CN105025228A (zh) * 2015-07-22 2015-11-04 深圳市万姓宗祠网络科技股份有限公司 一种根据画面状态连续记录视频、影像的方法
US20170193782A1 (en) * 2015-12-30 2017-07-06 Google Inc. Passive infrared systems and methods that use pattern recognition to distinguish between human occupants and pets
KR20180104970A (ko) 2017-03-14 2018-09-27 엘지전자 주식회사 단말기 및 그 제어 방법
CN108718393B (zh) * 2018-08-03 2024-04-05 思特威(上海)电子科技股份有限公司 一种cmos图像传感器及其监控方法
KR102284187B1 (ko) * 2019-04-02 2021-08-02 엘지이노텍 주식회사 스테레오 매칭장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1180414A (zh) * 1995-08-04 1998-04-29 约瑟夫·黎 运动检测成像设备和方法
KR100378157B1 (ko) * 2000-04-19 2003-03-29 주식회사 아임스이십일 감시 시스템의 모션 디텍션 설정방법
JP2004200989A (ja) * 2002-12-18 2004-07-15 Fuji Photo Film Co Ltd 撮影装置及び監視システム
KR20040074470A (ko) * 2003-02-19 2004-08-25 삼성전자주식회사 감시 시스템의 운용방법
JP2009077349A (ja) * 2007-09-25 2009-04-09 Funai Electric Co Ltd 映像表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10218980B2 (en) 2013-09-27 2019-02-26 Hanwha Aerospace Co., Ltd Camera compressing video data
CN109287052A (zh) * 2018-11-07 2019-01-29 泉州思力科电子科技有限公司 一种灯具开关芯片及该灯具开关芯片的控制方法

Also Published As

Publication number Publication date
KR20120095681A (ko) 2012-08-29
WO2012115408A3 (fr) 2012-11-29
CN103404125A (zh) 2013-11-20
KR101262745B1 (ko) 2013-05-10
CN103404125B (zh) 2016-08-17

Similar Documents

Publication Publication Date Title
WO2012115408A2 (fr) Capteur d'image, et appareil photographique comprenant ledit capteur
WO2021040284A1 (fr) Système et procédé d'amélioration de contenu à l'aide de capteurs à matrice de filtres colorés quad
WO2011068363A2 (fr) Procédé de régulation d'alimentation d'un dispositif de reconnaissance gestuelle par détection de la présence d'un utilisateur
WO2015190744A1 (fr) Dispositif d'imagerie thermique et système de détection d'intrusion l'utilisant
WO2016204371A1 (fr) Appareil photographique permettant d'empêcher une fuite de lumière et son capteur d'image
WO2015147573A1 (fr) Système de caméra de surveillance sans fil intégré dans l'éclairage
EP3047640A1 (fr) Dispositif portable et son procédé de commande
WO2011027983A2 (fr) Système et procédé de détection d'intrusion par imagerie utilisant un éclairage par points
WO2019112308A1 (fr) Dispositif électronique, appareil de terminal utilisateur et procédé de commande associé
WO2015005510A1 (fr) Dispositif d'éclairage à del tournant intelligent
WO2013151273A1 (fr) Appareil de traitement d'image numérique et son procédé de commande
WO2020027606A1 (fr) Dispositif de commande de visualisation tv, apte à l'appel vidéo bidirectionnel
WO2019125074A1 (fr) Procédé de génération d'image composite à l'aide d'une pluralité d'images ayant différentes valeurs d'exposition, et dispositif électronique prenant le procédé en charge
WO2020230930A1 (fr) Caméra d'imagerie thermique et procédé de commande associé
WO2023200159A1 (fr) Procédé de détection d'objet à l'aide d'une faible puissance, et dispositif de détection selon ce procédé
KR101132407B1 (ko) 이미지 센서를 포함하는 촬영 장치
WO2014098316A1 (fr) Système pour transmettre des images de surveillance d'ascenseur et procédé associé
WO2019031802A1 (fr) Système et procédé de compensation de qualité d'image pour chaque section de luminosité
WO2021221293A1 (fr) Dispositif d'affichage et dispositif d'alimentation électrique
WO2020204404A1 (fr) Dispositif électronique et procédé de commande de sortie de sources lumineuses du dispositif électronique
JP2004180169A (ja) 照明装置及び監視システム
WO2018190556A1 (fr) Détecteur de rayonnement et procédé de gestion de puissance pour détecteur de rayonnement
WO2014098317A1 (fr) Système de surveillance d'ascenseur et procédé permettant d'effectuer une mise au point de la lumière transmise de celui-ci
WO2021132931A1 (fr) Appareil d'affichage d'image et procédé d'exploitation correspondant
WO2020071861A1 (fr) Appareil d'affichage et procédé de commande associé

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12749562

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12749562

Country of ref document: EP

Kind code of ref document: A2