Adaptive patch feature matching and scale estimation for visual object tracking

Vadamala, Purandhar Reddy; Aklak, Annis Fathima

doi:10.1117/1.jei.28.3.033037

Cited by 3 publications

(1 citation statement)

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“…In formula ( 14), r 1 represents the state correlation estimated feature value of the volleyball player's arm trajectory, r 2 represents the correlation coefficient, σ 1 represents the feature matching degree, and N 1 is the linear component of the volleyball player's arm trajectory. Set h as the edge pixel set of volleyball player's arm hitting trajectory, use the adaptive block feature matching method to segment the image contour of volleyball player's arm hitting trajectory [32][33][34], divide the chromatographic image into M × N subblocks G m,n of 2 × 2, and obtain the feature distribution matrix of volleyball player's arm hitting trajectory tracking as follows:…”

Section: Pretreatment Of Volleyball Player's Arm Hittingmentioning

confidence: 99%

Trajectory Tracking Method of Volleyball Player’s Arm Hitting Image Based on D-P Algorithm

Qin

2021

Scientific Programming

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Aiming at the problems of poor image tracking effect, low precision, and long time in the process of image tracking of volleyball player’s arm hitting, a volleyball player's arm hitting image tracking method based on D-P algorithm is proposed. This paper analyzes the basic concept, basic principle, and basic equation of D-P algorithm and collects the arm stroke trajectory image of volleyball players under the three-dimensional visual model. Using wavelet multiscale decomposition method, the arm stroke trajectory of volleyball players is filtered, and the edge contour feature points of the arm stroke image of volleyball players are extracted. Using the gray histogram feature extraction method, the gray information of volleyball player's arm hitting trajectory image is enhanced. Combined with pixel adaptive enhancement technology, the key action feature points of volleyball player's arm hitting image trajectory are located. Based on D-P algorithm, the volleyball player's arm hitting image trajectory is adjusted and modified to realize the correct tracking of volleyball player's arm hitting image trajectory. The experimental results show that the trajectory tracking effect of volleyball player's arm hitting image is better, which can effectively improve the tracking accuracy and shorten the tracking time.

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Section: Pretreatment Of Volleyball Player's Arm Hittingmentioning

confidence: 99%