Int J Performability Eng ›› 2020, Vol. 16 ›› Issue (3): 411-418.doi: 10.23940/ijpe.20.03.p10.411418

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Quality Evaluation of Multi-Frame Sports Image Fusion based on Gradient Domain

Lili Zhanga and Shuai Liub,*   

  1. aSports and Military Education Research Department, Jilin University of Finance and Economics, Changchun, 130017, China;
    bCollege of Information Science and Engineering, Hunan Normal University, Changsha, 410081, China
  • Submitted on ; Revised on ; Accepted on
  • Contact: Shuai Liu E-mail:liushuai@hunnu.edu.cn

Abstract: In order to improve the recognition ability of the detail action of a multi-frame sports image, a local fusion quality evaluation method based on gradient domain is proposed. The sampling model of visual feature information of multi-frame sports image is established, the gradient feature decomposition and action feature reconstruction of multi-frame sports image are carried out by using block feature fusion matching method, and the key motion feature point matching model of multi-frame sports image is established. The local fuzzy feature detection of multi-frame sports images is carried out by template automatic matching and gradient domain feature decomposition. The block identification model of local fuzzy features of multi-frame sports images is established. The adaptive image information enhancement technology is used for multi-scale feature decomposition and information enhancement processing. The feature set of the key action of the local fuzzy region of the multi-frame sports image is extracted. According to the feature distribution of the block area of the key action, the fusion quality evaluation of the multi-frame sports image is realized. The simulation results show that the method has high accuracy in evaluating the fusion quality of multi-frame sports images, has a strong ability to distinguish multi-frame sports movements, and has guiding value in the guidance and judgment of multi-frame sports training.

Key words: gradient domain, multi-frame sports image, fusion quality, evaluation