The invention relates to the technical field of intelligent traffic assistance, in particular to a blind person street-crossing prompter based on video analysis, which is characterized in that a video data acquisition module acquires a road monitoring video, extracts a real-time picture of a zebra crossing area, identifies pedestrians in the picture, screens out a blind person target individual carrying a blind guide stick or wearing a specific wearable device, and transmits the screened blind person target individual to a video processing module; and calculating a displacement track of the blind target individual among the video frames to obtain blind street crossing data. According to the invention, video data acquisition is expanded to precise monitoring of a zebra crossing area, a specific target is focused, pedestrians carrying blind guide sticks or wearing specific equipment can be screened out, and effective identification of blind individuals is realized. The moving path is calculated in combination with the displacement track, on the basis of stride frequency, step length and deviation angle analysis, the action stability is judged through an inertial sensor, the transverse deviation or stagnation situation in the moving process of the blind person can be dynamically evaluated, and the target recognition precision is improved.
本发明涉及智能交通辅助技术领域,具体为一种基于视频分析的盲人过街提示器,视频数据采集模块获取道路监控视频,提取斑马线区域的实时画面,识别画面中的行人,并筛选携带导盲杖或佩戴特定穿戴设备的盲人目标个体,计算盲人目标个体在视频帧间的位移轨迹,得到盲人过街数据。本发明,视频数据采集拓展至斑马线区域的精准监测,聚焦特定目标,能够筛选出携带导盲杖或佩戴特定设备的行人,实现对盲人个体的有效识别。结合位移轨迹计算行进路径,在步频、步长及偏移角度分析的基础上,利用惯性传感器判断行动稳定性,能够动态评估盲人行进过程中的横向偏移或停滞情况,提升目标识别精度。
Blind person street crossing prompter based on video analysis
一种基于视频分析的盲人过街提示器
2025-04-25
Patent
Electronic Resource
Chinese
Street Crossing by Sighted and Blind Pedestrians at a Modern Roundabout
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