Stereoscopic vision based auxiliary walking device for blindmen and auxiliary method thereof

A technology for assisting walking and stereo vision, which is used in equipment to help people walk, physical therapy, and ophthalmic therapy. Effect

Inactive Publication Date: 2011-04-06
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall algorithm of Xie Yizheng's assisting system for the blind is complex, and the CCD camera used cannot adapt to the changes in the intensity of natural light indoors and outdoors. In strong sunlight, backlighting and dark light in the evening, the image will be unclear, and it will be difficult to work outdoo

Method used

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  • Stereoscopic vision based auxiliary walking device for blindmen and auxiliary method thereof
  • Stereoscopic vision based auxiliary walking device for blindmen and auxiliary method thereof
  • Stereoscopic vision based auxiliary walking device for blindmen and auxiliary method thereof

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Embodiment Construction

[0031] The following is a detailed description of the stereo vision-based walking aid for the blind with reference to the accompanying drawings.

[0032] see first figure 1 , figure 1 It is a structural block diagram of the blind person's auxiliary walking device based on stereo vision in the present invention. As can be seen from the figure, the blind person's auxiliary walking device based on stereo vision in the present invention includes a binocular camera 1, a central processing module 2 and a voice output module 3. The left eye camera 11 and the right eye camera 12 of the eye camera are symmetrically installed in front of the blind hat. Image processing software mainly for processing and off-road processing, the output end of the central processing module 2 is connected with the voice output module 3 .

[0033] The binocular camera 1 adopts JSA-WZS31480CE ultra-wide dynamic low-light camera, ultra-wide dynamic range 1:400, 520 / 570 lines ultra-high horizontal definition...

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Abstract

The invention discloses a stereoscopic vision based auxiliary walking device for blindmen and an auxiliary method thereof. The device comprises a binocular camera, a central processing module and a voice output module, wherein a left eye camera and a right eye camera of the binocular camera are connected with the central processing module, the central processing module has image processing software mainly used for barrier processing, traffic light processing and off-rod processing, and the output end of the central processing module is connected with the voice output module. When in use, the stereoscopic vision based auxiliary walking device for blindmen is worn on the head of a blindman, and after the stereoscopic vision based auxiliary walking device for blindmen is started up, the binocular camera is used for shooting images, the central processing module is used for carrying out road edge detection, barrier processing, traffic light process and off-road processing, the voice output module gives voice prompt according to processing results so as to help the blindman walk indoors and outdoors without barriers and pass rod junctions safely.

Description

technical field [0001] The invention belongs to the field of machine vision, and in particular relates to a stereo vision-based auxiliary walking device for the blind and an auxiliary method thereof. Background technique [0002] There are about 50 to 60 million blind people in the world, and the number of blind people in my country accounts for about a quarter of the total number of blind people in the world. Blind people are disadvantaged groups and need more help from the society so that they can improve their ability to live independently and have a better quality of life. Assisting the blind to walk is a very important aspect. Various tools for assisting the blind to walk have been researched and developed at home and abroad, but there are still many problems. For example, some devices that assist the blind to recognize traffic lights require installation of sounding devices at each intersection, and some require the control of traffic lights, which will increase cost...

Claims

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Application Information

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IPC IPC(8): A61H3/06A61F9/08
Inventor 应捷田牛戴曙光徐珊珊宋彦斌
Owner UNIV OF SHANGHAI FOR SCI & TECH
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