足球正脚背射门动作的三维姿态重构方法研究

Football is Instep Shoot 3D Posture Reconstruction Method

足球正脚背射门动作实时变化,不同时刻目标二维图像存在很大差异,当前三维姿态重构方法可得到的动作信息非常有限且具有姿态敏感性,导致重构结果不可靠、连续性不高。为此,提出一种新的足球正脚背射门动作的三维姿态重构方法,依据足球正脚背射门动作图像中所有像素的平均梯度平方矩阵获取Harris算子,通过Harris算子对足球正脚背射门动作特征进行提取。通过矩阵因式分解方法从观测矩阵中分解出三维姿态位置矩阵,实现足球正脚背射门动作三维姿态重构。实验结果表明,所提方法具有很高的重构精度,且连续性较高。

Football is the real-time change of instep shooting action,different moments of the target image are very different,the 3D pose reconstruction method can obtain movement information is very limited and has led to the reconstruction results do not pose sensitivity,reliability and continuity is not high. Therefore,the 3D pose reconstruction method of a new soccer instep shooting action,obtain the Harris operator based on the average gradient square matrix soccer instep shooting action of all pixels in the image,the Harris operator of soccer instep shooting action feature extraction. The decomposition of the 3D pose position matrix from the observation matrix by matrix factorization method,realize the soccer instep shooting action 3D pose reconstruction. The experimental results show that the proposed method has high reconstruction precision and high continuity.