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A path prediction system and method for visually impaired people based on rgb-d camera and stereo

A stereo and channel technology, which is used in appliances to help people move around, image analysis, physical therapy, etc. It can solve problems such as delay, burden on visually impaired people, and different wearing feelings.

Active Publication Date: 2019-12-17
杭州视氪科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Haptic vibration uses vibration belt or vibrating vest as hardware to prompt the orientation of obstacles. The vibration device can solve the problem of delay, but it brings a burden to the visually impaired. Different people have different wearing experience

Method used

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  • A path prediction system and method for visually impaired people based on rgb-d camera and stereo
  • A path prediction system and method for visually impaired people based on rgb-d camera and stereo
  • A path prediction system and method for visually impaired people based on rgb-d camera and stereo

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Embodiment Construction

[0053] Such as figure 1 As shown, a path prediction system for visually impaired persons based on RGB-D camera and stereo sound, the system includes an infrared projector, two identical infrared cameras, a color camera, an attitude angle sensor, a USB hub, a A small processor, a bone conduction headphone module, two bone conduction vibration modules, and a battery module. An infrared projector, two infrared cameras, a color camera, and an attitude angle sensor are connected to the small processor through a USB hub, and the battery module is connected to the small processor. A color camera and an infrared projector are located between the two infrared cameras. The optical axes of the two infrared cameras and the color camera are parallel to each other. The attitude angles of the three cameras are consistent, and are acquired in real time by attitude angle sensors. The small processor controls the infrared projector to project invisible static near-infrared speckles to the fr...

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Abstract

The invention discloses an RGB-D camera and stereophonic sound-based passage prediction system and method for visually impaired people. The method comprises the steps of projecting invisible near-infrared static speckles by utilizing an infrared projector; collecting an image by utilizing two infrared cameras and an RGB color camera; processing the collected image by a small processor; and performing calculation to obtain a depth image. According to the method, attitude angle information of the cameras is obtained by utilizing an attitude angle sensor; the small processor performs calculation by utilizing depth information and the attitude angle information to obtain a height image; the height image is subjected to block segmentation; the depth information obtained by the block segmentation is converted into a stereophonic sound signal; and finally the stereophonic sound signal is transmitted to the visually impaired people for performing assistance by utilizing bone conduction earphones, so that the passage prediction requirements of the visually impaired people can be well met.

Description

technical field [0001] The invention belongs to the technical fields of assistive technology for visually impaired persons, binocular vision technology, three-dimensional environment perception technology and stereo interaction technology. The present invention includes a path prediction method for visually impaired persons based on RGB-D cameras and stereo sound, and relates to a method for projecting invisible near-infrared static speckles by using an infrared projector, and collecting images by using two infrared cameras and an RGB camera. The small processor processes the collected images, calculates and obtains the depth image. The small processor uses the attitude angle sensor to obtain the attitude angle information of the camera. The small processor uses the depth information and attitude angle information to calculate and obtain the height image, and divides the height image into blocks, converts the depth information obtained by the blocks into a stereo signal, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00A61H3/06G06T7/70G06T7/30
CPCA61H3/061G06T2207/10024G06T2207/10028G06T2207/10048G06T2207/30244
Inventor 于红雷杨恺伦程瑞琦陈浩汪凯巍
Owner 杭州视氪科技有限公司
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