Traffic light intersection blind guiding method and device

Abstract

The invention provides a traffic light intersection blind guiding method and device. The method comprises the following steps: acquiring a video image in front of the blind guiding device in real time; using an identification model to detect whether the image includes a traffic light, and if so, outputting the state of the traffic light and the distance between the traffic light and the blind guiding device; if multiple groups of traffic lights are detected, identifying a group of target traffic lights based on the distance between the traffic lights and the blind guiding device and the distance that the traffic lights deviate from the image view center; if only one group of traffic lights is detected, the traffic lights are target traffic lights; and reminding information related to the target traffic light is played in real time through a voice module. The traffic light state of the intersection can be automatically detected, the target traffic light can be recognized from the detected multiple groups of traffic lights, environmental interference can be effectively reduced, the traffic light recognition precision is improved, more stable and reliable information is provided for a wearer, and therefore the safety of the wearer passing through the traffic light intersection is improved.

Description

technical field [0001] The invention belongs to the technical field of artificial intelligence, and in particular relates to a blind-guiding method and device at a traffic light intersection. Background technique [0002] 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. In absolute terms, the number of blind people in China already exceeds the population of countries such as Denmark, Finland or Norway. About 450,000 people go blind in China every year. The Chinese Ministry of Health has also pointed out that factors such as the rapid aging of the population and population growth have caused the continuous increase in the number of blind people in China. In contrast, the existing public facilities in China do not fully consider the use scenarios of blind people, such as the setting of traffic lights, which makes it very inconvenient and even dangerous for blind p...

AI Technical Summary

Problems solved by technology

Existing smart glasses generally use infrared ranging modules for distance measurement, but in the scene of crossing a traffic light intersection, due to the wearing height and occlusion problems, the infrared ranging module is usually unable to measure the distance between the wearer and the opposite traffic light

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