An intelligent blind-guide method

Abstract

The invention relates to an intelligent blind-guide method comprising the steps of obtaining position information; planning and analyzing a route; performing real-time analysis on road conditions; judging whether traffic signal detection for an intersection is needed according to a map and positioning information; analyzing the state of traffic information signal lights and prompting a user; establishing a Gaussian mixture model and performing background analysis on obtained road condition images to obtain an image background and further obtain foreground image information; performing feature analysis on the foreground image information to judge the road information and passenger and vehicle information and prompting the user. The method can perform accurate and comprehensive detection and reasonable evaluation on complex road conditions, can provide reasonable and timely prompts for users, can provide convenience for going out of special crowds, in particular the blind and the old, fulfills the functions of accurate positioning, route navigation, road condition detection and voice prompt, and is worthy of extensive promotion.

Description

technical field [0001] The invention belongs to the technical field of blind guidance, and in particular relates to an intelligent blind guidance method. Background technique [0002] In people's life, especially in the field of some special populations, such as the blind and the elderly, there are many difficulties in walking guidance. At present, blind people mainly rely on the help of guide sticks and guide dogs for travel. Guide dogs need long-term training, are expensive, and are troublesome to raise. Although guide sticks are easy to use and low in price, their detection range is small; In addition, it is more difficult and dangerous for blind people to travel only with guide sticks at traffic light intersections, mixed road sections with people and vehicles, and environments without traffic signs. [0003] With the continuous advancement of science and technology, how to provide an effective method of guiding the blind and provide accurate and specific guidance for t...

AI Technical Summary

Problems solved by technology

[0004] However, the above method is difficult to achieve real-time analysis of complex road conditions, and for real-time changing road conditions, it cannot accurately detect and reasonably evaluate obstacles, potholes, pedestrians, vehicles, and traffic lights on the walking route; and Also failed to carry out accurate path planning for the travel route of the blind according to the specific road conditions, and thus cannot reasonably provide the preferred travel mode, which brings inconvenience to the travel of the blind

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