10 April 2018 A difference tracking algorithm based on discrete sine transform
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Proceedings Volume 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017); 106151M (2018) https://doi.org/10.1117/12.2302771
Event: Ninth International Conference on Graphic and Image Processing, 2017, Qingdao, China
Abstract
Target tracking is an important field of computer vision. The template matching tracking algorithm based on squared difference matching (SSD) and standard correlation coefficient (NCC) matching is very sensitive to the gray change of image. When the brightness or gray change, the tracking algorithm will be affected by high-frequency information. Tracking accuracy is reduced, resulting in loss of tracking target. In this paper, a differential tracking algorithm based on discrete sine transform is proposed to reduce the influence of image gray or brightness change. The algorithm that combines the discrete sine transform and the difference algorithm maps the target image into a image digital sequence. The Kalman filter predicts the target position. Using the Hamming distance determines the degree of similarity between the target and the template. The window closest to the template is determined the target to be tracked. The target to be tracked updates the template. Based on the above achieve target tracking. The algorithm is tested in this paper. Compared with SSD and NCC template matching algorithms, the algorithm tracks target stably when image gray or brightness change. And the tracking speed can meet the read-time requirement.
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HaoPeng Liu, HaoPeng Liu, Yong Yao, Yong Yao, HeBing Lei, HeBing Lei, HaoKun Wu, HaoKun Wu, } "A difference tracking algorithm based on discrete sine transform", Proc. SPIE 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017), 106151M (10 April 2018); doi: 10.1117/12.2302771; https://doi.org/10.1117/12.2302771
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