Jin-xiang Wang

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In this paper we introduce a novel method to detect and alarm pedestrian fall action in video surveillance by using frame difference method and pedestrians marker frame. Firstly, we used the fixed camera to capture video image information, and applied the morphological erosion and dilation method to reduce the noises. Then combined the frame difference(More)
The paper presented a vehicle speed estimation algorithm based on moving target detection in video surveillance. Firstly, the features of moving vehicles were extracted by using the three frame difference method and the background difference method; secondly, tracked and positioned the moving target according to moving vehicle centroid feature extraction(More)
A video surveillance intrusion detection system is designed in this paper, the main function modules of the system include target detection, automatic identification and automatic alarm. When the user star the program, the system will call the camera and open video surveillance and automatic alarm system. The three frame difference method and background(More)
In this paper, a novel mobile robot obstacle avoidance method based on multi-sensor was proposed. According to the distant and near information of obstacles that detected by three front-end sonar sensors and four PSD sensors respectively, after analyzing the information data, obstacles distance and azimuth information were obtained, further, making strategy(More)
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