MOTION TRAJECTORY IMAGE SEGMENTATION METHOD BASED ON GAIT TACTILE INFORMATION
In the process of human movement,because the motion amplitude and speed do not follow the specific law,the actual fea-tures of the motion track can't be extracted.Therefore,a motion track image segmentation method based on gait tactile information is proposed.The gait tactile information was obtained by using the footprint information of human heel contact with the ground.The aver-age gray value of the image contour was calculated by the contour detection function.The image region was determined by the shape feature factor,and the initial contour of the motion trajectory image was extracted.The pixel gradient of the image is taken as a two-di-mensional vector,the gray value of the pixel gradient is calculated,and the histogram of the motion track image within the gray level interval is obtained through differential processing.In the discrete form,the contour of the motion track image is enhanced.The con-tour of the enhanced image is used as the segmentation boundary to determine the foreground area and the background area to realize the segmentation of the motion trajectory image.The experimental results show that the proposed method can segment the motion track im-age according to the gait and tactile information in the process of human movement,and the segmentation uniformity can be improved to more than 80%.
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