[go: up one dir, main page]

WO2016086438A1 - Système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante - Google Patents

Système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante Download PDF

Info

Publication number
WO2016086438A1
WO2016086438A1 PCT/CN2014/093530 CN2014093530W WO2016086438A1 WO 2016086438 A1 WO2016086438 A1 WO 2016086438A1 CN 2014093530 W CN2014093530 W CN 2014093530W WO 2016086438 A1 WO2016086438 A1 WO 2016086438A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
image
multimedia terminal
head
visually impaired
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/CN2014/093530
Other languages
English (en)
Chinese (zh)
Inventor
杨小康
翟广涛
闵雄阔
李铎
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.)
Shanghai Jiao Tong University
Original Assignee
Shanghai Jiao Tong University
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 Shanghai Jiao Tong University filed Critical Shanghai Jiao Tong University
Publication of WO2016086438A1 publication Critical patent/WO2016086438A1/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
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/393—Enlarging or reducing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems

Definitions

  • the present invention relates to the field of visual aid technology and multimedia, and in particular to a head-mounted multimedia terminal assisted viewing system for a visually impaired patient.
  • Visual impairment also known as “visual disability”, “visual defect”, “visual impairment” refers to some or all of the obstacles to the structure or function of the visual organs (including the eyeballs, the ocular nerves) and the cerebral optic nerve center caused by various reasons. It manifests as different degrees of visual impairment or narrowing of vision in both eyes, and it is difficult to achieve the work, study and other activities that ordinary people can do, which limits or hinders the normal effects that can be exerted according to their age, gender, social and cultural conditions.
  • Visual impairment is caused by innate or acquired causes of partial or total loss of function of the visual system, so that it is impossible to accurately identify external things.
  • visual failure is less than 0.3, or visual field is within 20 °.
  • visual impairment can be divided into two categories: the visual acuity of the two eyes is less than 0.3 above 0.03 or the visual field is less than 20°; the visual acuity of the two eyes is less than 0.03 for total blindness.
  • People with amblyopia can usually use vision for daily life, but there are certain obstacles in visual observation. Generally, optical aids or special magnification equipment are needed to observe things.
  • amblyopia itself is also very different: there is a lack of three-dimensionality, sensitivity to light, unrecognizable color, and too narrow a field of view. Therefore, the optical auxiliary equipment or special amplification equipment required is also very different.
  • the blind population can't rely on vision for daily life at all, and usually can only take an alternative way to conduct daily life.
  • haptic aids, hearing aids, and other types of assistive devices are used in place of vision. It can be said that the visually impaired people need the most assistive technology and equipment.
  • Most information barrier technologies and devices can be applied to people with visual impairments. Almost all visually impaired people can compensate for the quality of life and participate in social life through assistive devices.
  • the second sample survey showed that only 7.97% of the visually impaired persons in China were assisted with services; 14.49% of the cities and 5.82% of the rural areas.
  • Visual impairment aids can be divided into two categories: visual and non-visual appliances:
  • Visual aids refer to devices or devices that can visually assist visually impaired persons to improve their visual ability. They are also classified into optical, non-optical, and electronic visual aids. Optical aids are more common, including hand-held, vertical magnifiers, glasses, monoculars, and binoculars. The optical aid is easy to use, easy to carry, low in price, and the main visual aid for low vision patients; however, it also has some limitations in use, such as low magnification, small reading range, long-term use. Causes poor posture, will be affected by the light source. Non-optical visual aid refers to improving visual effects by improving the surrounding environment.
  • the electronic visual aid is an electronic video device that can read a document, a picture, an observed item, etc. through a photographic lens, and transmit the image to a screen for the user to browse.
  • electronic vision aids including: far-sighted, near-looking (zooming in), near-far, pocket-sized, portable, and so on. It is characterized by easy adjustment of magnification, brightness, contrast, etc., which can avoid glare; it has multiple display modes such as anti-white and half-color; it is ergonomically designed and can provide a large working space.
  • Non-visual aids refer to auxiliary devices that make full use of functions other than vision, such as hearing and touch, to compensate for the defects of visual functions and improve the quality of life of visually impaired people, including life, work, study, entertainment, etc. Every aspect of it. For example: blind mobile phones and telephones used for daily life, vocal clocks; blind canes and blind roads for travel; Braille for reading communication, dot display, audio books, various screen reading software, etc. Such aids are used more fully by blind patients.
  • the assistive technologies and equipment required by different visually impaired people are also different.
  • the existing types of visual obstacle aids have the characteristics of single function and poor expandability, and do not conform to the principles of ease of use, application, simplicity, portability, and scalability.
  • various multimedia terminals such as computers, smart TVs, tablets, mobile phones, etc. have greatly enriched our daily life, and visually impaired patients cannot enjoy the convenience brought by scientific and technological progress due to visual defects. .
  • an object of the present invention is to provide a head-mounted multimedia terminal assisted viewing system for a visually impaired patient, which can acquire a display image of a multimedia terminal in real time and process it by using image processing and machine vision algorithms. Then, the head-mounted display is used to display the processed image in a more acceptable manner for the visually impaired patient, thereby achieving the purpose of assisting the visually impaired patient to view the multimedia terminal.
  • the present invention provides a head-mounted multimedia terminal assisted viewing system for a visually impaired patient, comprising:
  • a head mounted display for displaying an image to be viewed
  • An information interaction module configured to communicate between a multimedia terminal and a head mounted display
  • An image processing module that processes the image to enhance vision for a visually impaired patient
  • the system is capable of acquiring a display image of the multimedia terminal in real time, and the image processing module processes the acquired display image by using image processing and a machine vision algorithm, and the head mounted display makes the processed image more acceptable to a visually impaired patient The way to achieve the purpose of assisting visually impaired patients to view multimedia terminals.
  • the head mounted display includes an imaging system for displaying an image, various types of sensors for detecting external information and the state of the glasses, a control center for overall control, and the like.
  • the image display mode of the imaging system may be a projection type or a non-projection type; if a projection display mode is adopted, the imaging system includes a projection device and a display panel, and the projection device is projected on the display panel in front of the human eye. A virtual image is formed at a certain distance; if a non-projection display mode is employed, the imaging system includes a display panel, and the image is directly displayed on the screen of the display panel.
  • a convex lens is further added between the eyes and the display panel to make the imaging clearer.
  • the display panel of the non-projection display mode is a high definition liquid crystal display or an LED dot matrix display.
  • the display panel may be transparent or non-transmissive. If the display is transparent, the image formed on the display panel will be superimposed with the real scene.
  • the display of the imaging system is a binocular display or a monocular display; if it is a single eye, a single channel, the projection device and the display panel only need one way; if it is a binocular or a dual channel, the projection device and the display panel are For the left and right.
  • the various types of sensors include an infrared sensor, an accelerometer, a gyroscope, etc., for detecting external information and the state of the glasses and transmitting the signals to the control center.
  • the information interaction module is partially installed on the multimedia terminal and partially mounted on the head mounted display for communication between the multimedia terminal and the head mounted display.
  • the information interaction can be performed in a wired manner or in a wireless manner. If the wireless method is adopted, the system will be more convenient and will also generate higher energy consumption.
  • the image processing module acquires the display image of the multimedia terminal in real time, processes it by using image processing and machine vision algorithms, and then uses the head mounted display to display the processed image in a more acceptable manner for the visually impaired patient.
  • Image processing and machine vision algorithms have different settings depending on the type of visual impairment; different image processing algorithms correspond to different patients.
  • the deformed patient displays the image by pre-distorting the display image of the multimedia terminal, so that the patient produces a normal image; for the color-blind patient, the color of the color-blind patient in the multimedia terminal display image is color-converted or calibrated, so that the patient can distinguish the original Undistinct color; for low vision patients, the multimedia terminal displays images for image enlargement for easy reading; for visual disorders caused by other diseases, the corresponding algorithm is used to improve the patient's viewing experience and enhance their vision.
  • the supporting program and related image processing and machine vision algorithms can be run on the multimedia terminal, and can be transmitted to the head-mounted display by using the computing power of the multimedia terminal; or can be run on the control center of the head-mounted display.
  • the multimedia terminal first transmits the current display image to the head mounted display, and the head mounted display performs processing and display.
  • the present invention has the following beneficial effects:
  • the present invention is a wearable device, which has the advantages of simple portability, easy expansion, and the like, and can make the visually impaired patient better enjoy the convenience brought by the multimedia terminal; further, the present invention discloses
  • the hardware can be used as a visual obstacle assisting device platform.
  • the matching image processing program can be designed in a targeted manner to achieve the purpose of assisting the visually impaired patient to view the multimedia terminal.
  • FIG. 1 is a schematic structural view of a preferred embodiment of the present invention.
  • FIG. 2 is a block diagram showing the working principle of a preferred embodiment of the present invention.
  • FIG. 3 is an effect diagram of a weak example of an embodiment of the present invention; wherein: (a) is an image displayed by the current multimedia terminal, and (b) is an image displayed by the head mounted display after image processing (image enlargement).
  • 1 is a multimedia terminal
  • 2 is a head-mounted display
  • 3 is an information interaction module
  • 4 is an imaging system of a head-mounted display
  • 5 is a sensor of various types of head-mounted displays
  • 6 is a control center of a head-mounted display.
  • a head-mounted visual aid system for a visually impaired patient As shown in FIG. 1, a head-mounted visual aid system for a visually impaired patient according to a preferred embodiment of the present invention Schematic diagram of the structure, the multimedia terminal 1, the head-mounted display 2, the information interaction module 3, the imaging system 4 of the head-mounted display, the various sensors 5 of the head-mounted display, and the control center 6 of the head-mounted display, wherein:
  • the head mounted display 2 includes an imaging system 4 for displaying an image, various types of sensors 5 for detecting external information and the state of the glasses, a control center 6 for overall control, and the like; the head mounted display
  • the control center 6 of 2 is used for overall control of the head-mounted display, including image acquisition, processing, display of the display panel, and acceptance and processing of the sensor data;
  • the image display mode of the imaging system 4 of the head mounted display 2 may be a projection type or a non-projection type; if a projection type display mode is adopted, the imaging system includes a projection device and a display panel, and the projection device is projected on the display panel. A virtual image is formed at a certain distance in front of the human eye; if a non-projection display mode is employed, the imaging system includes a display panel, and the image is directly displayed on the screen of the display panel.
  • the display panel may be transmissive or non-transmissive. If the transmissive type is used, the image formed on the display panel will be superimposed on the real scene.
  • the various types of sensors 5 of the head mounted display 2 include an infrared sensor, an accelerometer, a gyroscope, etc., for detecting external information and the state of the glasses and transmitting the signals to the control center.
  • the multimedia terminal may be a computer, a smart TV, a tablet computer, a mobile phone, or the like widely used in daily life.
  • the information interaction module 3 is partially installed on the multimedia terminal 1 and partially mounted on the head mounted display 2 for communication between the multimedia terminal 1 and the head mounted display 2.
  • the information interaction can be performed in a wired manner or in a wireless manner. If the wireless method is adopted, the system will be more convenient and will also generate higher energy consumption.
  • the main function of the system is to provide a multimedia terminal-assisted viewing system for visually impaired patients.
  • the system can not only have different visual enhancement effects on different visual conditions, but also enable the patient to use the aid of the instrument in the multimedia terminal to improve vision and enhance. Its experience.
  • the system further comprises an image processing module designed to enhance the vision of the visually impaired patient, the program acquiring the display image of the multimedia terminal 1 in real time, using image processing and machine vision algorithms.
  • the processing is performed, transmitted to the head mounted display 2 through the information interaction module 3, and the processed image is displayed by the head mounted display 2 in a more acceptable manner for the visually impaired patient.
  • the image processing and machine vision algorithms have different settings depending on the type of visual impairment; different image processing algorithms correspond to different patients.
  • a patient who has undergone visual distortion such as age-related macular degeneration, central serous retinopathy, cataract, etc.
  • a normal image is displayed by pre-distorting the display image of the multimedia terminal to make the patient Produce a normal image
  • a color conversion or calibration of a color that cannot be distinguished by a color blind patient in an image displayed by the multimedia terminal is performed, so that the patient can distinguish a color that cannot be distinguished;
  • the multimedia terminal displays an image for image enlargement, which is convenient for reading;
  • the image processing algorithm may use the prior art, or an algorithm that is innovative in order to adapt to the visual aid system.
  • FIG. 2 it is a block diagram of a working principle of a system according to an embodiment of the present invention.
  • the workflow includes the following steps:
  • the part is completed by the multimedia terminal 1, the multimedia terminal collects the current display image in real time, and transmits the collected display image to the control center 6 of the head mounted display 2 through the information interaction module 3 in the form of a video stream;
  • the image processing module is located in the control center 6.
  • This portion may be completed by the multimedia terminal 1, or may be completed by the control center 6 of the head mounted display 2, the latter being an example.
  • the multimedia terminal 1 transmits the collected display image in the form of a video stream to the control center 6 of the head mounted display 2 through the information interaction module 3, and the control center 6 performs specific processing on the transmitted image, such as: enlargement, enhancement, color Correction, etc.; image processing and machine vision correlation algorithms are needed in this step; the system has high performance requirements for related image processing algorithms, and requires real-time requirements, so real-time performance should be considered when designing image processing algorithms.
  • the problem is that the algorithm with too high complexity and unable to meet the real-time requirements cannot be adopted; if there are some more complicated algorithms, the corresponding system should be simplified or innovated accordingly, so that the algorithm can better cooperate with the system.
  • the image processing algorithm may use the prior art, or an algorithm that is innovative in order to adapt to the visual aid system.
  • the control center 6 then transmits the processed image to the imaging system 4 of the head mounted display;
  • the display mode of the system of the present invention may be a projection type or a non-projection type. If the projection display is used, the imaging system 4 forms a virtual image at a certain distance in front of the human eye; if the non-projection display mode is adopted, the imaging system 4 forms a real image, but a convex lens needs to be added between the eye and the display panel to make the imaging clearer. .
  • the display panel of the display can be a high-definition liquid crystal display or an LED dot matrix display, and the selection of the display can be adjusted according to the actual condition of the patient's patient. This does not affect the substance of the system. specific:
  • the portion is completed by the projection device and the display panel.
  • the projection device respectively projects the processed image transmitted from the control center 6 to the display panel, so that the image viewed by the user from the display panel is processed by the image processing and the machine vision related algorithm. After the image;
  • the part of the display panel is completed, and the display panel respectively displays the processed images transmitted by the control center 6 so that the image seen by the user from the display panel is an image processed by the image processing and the machine vision related algorithm.
  • FIG. 3 it is an effect diagram which is considered as a weak example, wherein: (a) is a display image of the current multimedia terminal, and (b) is an image which is projected and displayed after the related image processing (image enlargement).
  • the invention is a wearable device, which has the advantages of simple portability, easy expansion, and the like, and can enable the visually impaired patient to better enjoy the convenience brought by the multimedia terminal; in addition, the hardware disclosed by the present invention can be used as a visual obstacle assisting device platform.
  • a matching image processing program can be designed in a targeted manner to achieve the purpose of assisting visually impaired patients to view multimedia terminals.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'invention concerne un système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante, comprenant : un afficheur porté sur la tête servant à afficher une image à regarder ; un module d'interaction d'informations pour la communication entre le terminal multimédia et l'afficheur porté sur la tête ; un module de traitement d'image servant à traiter l'image afin d'améliorer la vision de la personne malvoyante ; le système obtient l'image d'affichage du terminal multimédia en temps réel, le module de traitement d'image traite l'image d'affichage obtenue au moyen d'un traitement d'image et d'algorithmes de vision artificielle, et l'afficheur porté sur la tête affiche l'image traitée d'une manière plus acceptable pour la personne malvoyante, ce qui aide la personne malvoyante à voir le terminal multimédia.
PCT/CN2014/093530 2014-12-04 2014-12-11 Système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante Ceased WO2016086438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410736815.6A CN104483754A (zh) 2014-12-04 2014-12-04 针对视觉障碍患者的头戴式多媒体终端辅助观看系统
CN201410736815.6 2014-12-04

Publications (1)

Publication Number Publication Date
WO2016086438A1 true WO2016086438A1 (fr) 2016-06-09

Family

ID=52758317

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/093530 Ceased WO2016086438A1 (fr) 2014-12-04 2014-12-11 Système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante

Country Status (2)

Country Link
CN (1) CN104483754A (fr)
WO (1) WO2016086438A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110770636B (zh) * 2017-04-25 2024-04-05 雷特克斯有限公司 具有矫正视力缺陷、增强视力和感知能力的可穿戴图像处理和控制系统
TW201917447A (zh) * 2017-10-27 2019-05-01 廣達電腦股份有限公司 頭戴式顯示裝置以及色差強化方法
US11430414B2 (en) * 2019-10-17 2022-08-30 Microsoft Technology Licensing, Llc Eye gaze control of magnification user interface
CN112426333A (zh) * 2020-11-24 2021-03-02 杭州集视智能科技有限公司 一种偏盲患者立体视觉辅助电子设备及其控制方法
CN112904999A (zh) * 2020-12-30 2021-06-04 江苏奥格视特信息科技有限公司 一种基于激光雷达的增强现实体感交互方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459764A (zh) * 2007-12-14 2009-06-17 廖礼士 视觉缺陷测量及补偿的系统及方法
CN101478630A (zh) * 2008-12-30 2009-07-08 蒋清晓 多功能便携式电子助视器
CN104156971A (zh) * 2014-08-22 2014-11-19 中国科学技术大学 一种精确模拟视力障碍者视觉状况的方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11265248A (ja) * 1998-03-18 1999-09-28 Sony Corp 眼鏡型画像表示装置
WO2005072667A1 (fr) * 2004-01-29 2005-08-11 Konica Minolta Photo Imaging, Inc. Dispositif d'affichage pour vision auxiliaire
JP5341462B2 (ja) * 2008-10-14 2013-11-13 キヤノン株式会社 収差補正方法、画像処理装置および画像処理システム
JP5921533B2 (ja) * 2010-06-11 2016-05-24 バック イン フォーカスＢａｃｋ Ｉｎ Ｆｏｃｕｓ 観察者の視覚障害を補正するための表示を表現するシステム、方法、およびそのプログラムを格納している記憶媒体
WO2012105184A1 (fr) * 2011-02-04 2012-08-09 パナソニック株式会社 Dispositif d'affichage, lunettes et système d'images
CN202837679U (zh) * 2012-08-14 2013-03-27 深圳雷润文化发展有限公司 一种眼镜式多媒体装置
CN104584115B (zh) * 2012-08-27 2019-04-05 索尼公司 图像显示设备和图像显示方法、信息通信终端和信息通信方法以及图像显示系统
US20140285661A1 (en) * 2013-03-22 2014-09-25 Honeywell International Inc Methods and systems for colorizing an enhanced image during alert

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459764A (zh) * 2007-12-14 2009-06-17 廖礼士 视觉缺陷测量及补偿的系统及方法
CN101478630A (zh) * 2008-12-30 2009-07-08 蒋清晓 多功能便携式电子助视器
CN104156971A (zh) * 2014-08-22 2014-11-19 中国科学技术大学 一种精确模拟视力障碍者视觉状况的方法及装置

Also Published As

Publication number Publication date
CN104483754A (zh) 2015-04-01

Similar Documents

Publication Publication Date Title
CN104306102B (zh) 针对视觉障碍患者的头戴式视觉辅助系统
Deemer et al. Low vision enhancement with head-mounted video display systems: are we there yet?
CN112601509B (zh) 用于低视力用户的混合式透视增强现实系统和方法
Aydındoğan et al. Applications of augmented reality in ophthalmology
CN107636514B (zh) 头戴式显示装置和使用该装置的视觉辅助方法
US9760167B2 (en) Visual stabilization system for head-mounted displays
CN104618710B (zh) 基于增强光场显示的视觉缺陷校正系统
CN104570347B (zh) 头戴式显示装置及其成像方法
CN110708533B (zh) 基于增强现实的视觉辅助方法及智能穿戴设备
CN111770254A (zh) 基于ar眼镜的助视康复辅助器、系统及显示方法
CN107290853A (zh) 可穿戴显示器
WO2016086438A1 (fr) Système de visualisation auxiliaire de terminal multimédia porté sur la tête pour personne malvoyante
CN104865705A (zh) 一种基于智能移动设备的增强现实头戴设备
CN104865704B (zh) 一种基于移动设备的透射式与非透射式可切换头戴设备
CN108446011A (zh) 一种基于增强现实的医疗辅助方法及设备
KR20170140277A (ko) 이미지 향상을 가능하게 하는 안경 구조체
JP2017191546A (ja) 医療用ヘッドマウントディスプレイ、医療用ヘッドマウントディスプレイのプログラムおよび医療用ヘッドマウントディスプレイの制御方法
US10885337B2 (en) External visual enhancement and correction system
US20180182093A1 (en) Methods and systems for simulating the effects of vision defects
CN104767972B (zh) 一种视觉缺陷帮助系统及方法
TW201805689A (zh) 外加式近眼顯示裝置
Lorenzini et al. Virtual reality applications in the context of low-vision rehabilitation
Peláez‐Coca et al. A versatile optoelectronic aid for low vision patients
CN113413265A (zh) 视功能障碍者视觉辅助方法、系统及智能ar眼镜
CN206865633U (zh) 视觉增强穿戴设备

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: 14907554

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 02/10/2017)

122 Ep: pct application non-entry in european phase

Ref document number: 14907554

Country of ref document: EP

Kind code of ref document: A1