Stereoscopic vision indicator for blind people

Abstract

The invention belongs to the technical field of tools for blind people, and particularly relates to a stereoscopic vision indicator for the blind people. The stereoscopic vision indicator for the blind people firstly uses a stereoscopic camera which is installed inside a mobile phone and composed of two or more cameras to obtain a scene image through a sensor module, then uses a feature extraction module to analyze image data and extract image features by using a corresponding image processing algorithm, further uses an effective apparatus module to obtain information of distances and shapes in the image, and finally uses a translation output module to translate the information of the distances and the shapes into voice frequency which can be accepted by the blind people, and outputs the voice frequency through an earphone to the blind people for recognition. According to the stereoscopic vision indicator for the blind people, the latest stereoscopic vision processing algorithm is applied to a stable stereoscopic vision mobile phone which is low in cost, and daily life of the blind people such as travel is facilitated.

Description

technical field [0001] The invention belongs to the technical field of tools for the blind, in particular to a stereo vision indicator for the blind. Background technique [0002] It is estimated that there are about 285 million visually impaired people in the world, of which nearly 40 million are totally blind, and 90% of visually impaired patients are from developing countries. Therefore, an inexpensive and stable visual aid is very meaningful for the blind. [0003] At present, the most common tools to provide assistance to the blind are walking sticks or guide dogs. Although they are more customary, they limit the use of blind people. For example, the length of the cane is limited, and it can only remind the blind person of a small area on the ground in front of them, but cannot detect the range around the head and the far range; although guide dogs have advantages over canes, the cost of training guide dogs is relatively high. Difficult to adapt and difficult to inter...

AI Technical Summary

Problems solved by technology

[0003] At present, the most common tool to help the blind is a cane or a guide dog. Although it is more customary, it limits the use of blind people.

For example, the length of the cane is limited, and it can only remind the blind person of a small area on the ground in front of them, but cannot detect the range around the head and the far range; although guide dogs have advantages over canes, the cost of training guide dogs is relatively high. Difficult to adapt and difficult to interact

[0004] At present, relevant algorithms of machine learning have been applied to stereo cameras, but they are often unreliable, for example, they can only be applied to relatively single environments or rich textures, and for single or weak textures, they are often affected by noise. Large impact, resulting in error

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