TY -的A2 - Chen Miaochao盟——冯Yafeng盟——刘Xianguo PY - 2021 DA - 2021/12/26 TI -视频处理技术的应用,基于扩散方程模型在篮球分析SP - 7522973六世- 2021 AB -视频事件检测和注释工作是视频分析的重要内容,视频内容检索的基础。篮球是最受欢迎的类型的运动。事件检测和标记的篮球视频可以帮助观众快速定位感兴趣的事件和满足检索的需求。本文研究了应用视频图像的各向异性扩散平滑,去噪和增强。一种改进形式的各向异性扩散,可用于视频图像增强进行了分析。本文研究了相干散斑噪声去除和各向异性扩散方法提出了一种视频图像去噪方法,该方法结合了各向异性扩散和平稳小波变换。本文提出了一种基于视觉特征的各向异性扩散方法,添加视频图像的一个因素的细节而平滑,并提高了扩散的视觉效果。本文讨论了如何应用各向异性扩散方法和思想的视频图像分割。我们介绍了经典分水岭分割算法,并使用forward-backward扩散过程减少oversegmentation视频图像,介绍了活动轮廓模型及其改进预防蛇,和分析的想法如何使用各向异性扩散和提高养狐业蛇模型得到一个新的GGVF蛇模型。研究篮球分割的特写镜头,我们提出一种改进的霍夫变换方法基于可变方向滤波器,可以有效地提取中心和半径的篮球。 The algorithm has good robustness to basketball partial occlusion and motion blur. In the basketball segmentation research of the perspective shot, the commonly used object segmentation method based on the change area detection is very sensitive to noise and requires the object not to move too fast. In order to correct the basketball segmentation deviation caused by the video noise and the fast basketball movement, we make corrections based on the peak characteristics of the edge gradient. At the same time, the internal and external energy calculation methods of the traditional active contour model are improved, and the judgment standard of the regional optimal solution and segmentation validity is further established. In the basketball tracking research, an improved block matching method is proposed. On the one hand, in order to overcome the influence of basketball’s own rotation, this article establishes a matching criterion that has nothing to do with the location of the area. On the other hand, this article improves the diamond motion search path based on the basketball’s motion correlation and center offset characteristics to reduce the number of searches and improve the tracking speed. SN - 1687-9120 UR - https://doi.org/10.1155/2021/7522973 DO - 10.1155/2021/7522973 JF - Advances in Mathematical Physics PB - Hindawi KW - ER -