Blind person assisted visual processing method and device

Abstract

The invention provides a blind person assisted visual processing method and device, and the method comprises the steps: obtaining original point cloud data of a plurality of to-be-detected objects from a preset laser radar, and collecting all original point cloud data to obtain an original point cloud data set; performing three-dimensional reconstruction on the original point cloud data set to obtain a point cloud picture, wherein the point cloud picture comprises a plurality of obstacle distances; and when any obstacle distance is smaller than a preset distance value, generating a voice prompt instruction, and performing voice prompt according to the voice prompt instruction. According to the invention, the problem of low distance measurement precision caused by weather or night environment with low penetrability can be solved, the obstacle recognition degree is improved, the blind guiding precision is also improved, the safety of the blind is guaranteed, the design is relatively simple, the popularization range is relatively wide, and the travel of the blind is not limited.

Description

technical field [0001] The present invention mainly relates to the technical field of assisting the blind, in particular to a visual processing method and device for assisting the blind. Background technique [0002] Dr. Thylefors, Director of the Prevention of Blindness and Deafness Program of the World Health Organization (WHO) in Geneva, pointed out that China is the country with the largest number of blind people in the world, with about 5 million blind people. Accounting for 18% of the world's blind population, the number of blind people in China has already exceeded the population of countries such as Denmark, Finland or Norway. Thylefors also emphasized that about 450,000 people are blind in China every year, which means that there will be a new case of blindness almost every minute of every day. Thylefors pointed out that if current trends are allowed to continue, the number of blind people in China is expected to increase fourfold by 2020. [0003] Today, with the...

AI Technical Summary

Problems solved by technology

[0003] Today, with advanced technology, there are many ways to guide the blind for the blind. The existing ways of guiding the blind have certain shortcomings: the training period for guide dogs is long and difficult

The blind-guiding robot is complex in technology, expensive, and limited in popularity; the traditional cane has a single function

[0004] Most of the existing blind guide equipment adopts the method of binocular ranging, because this method cannot provide active light, so that it will be affected by the light due to the poor penetration of weather such as fog and rain or in the dark environment. The problem leads to deviations in the accuracy of blind guides, which leads to certain limitations in the conditions for blind people to travel

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