视频序列中垂直和水平划痕的修复  

Removal Method of Scratches in Video Sequences

作　　者：谷伊[1] 韩军[1] 蒋慧钧[2] 闵友钢[2] 

机构地区：[1]上海大学通信与信息工程学院,上海200072 [2]上海音像资料馆,上海200051

出　　处：《电视技术》2009年第11期31-34,共4页Video Engineering

基　　金：浙江省科技计划项目(2007C21014)

摘　　要：提出了一种利用空间信息的视频序列中垂直和水平划痕的修复方法,针对垂直和水平划痕两端相关性弱的特点,仅利用8邻域中的6个相关性强的信息进行计算,保证修复效果的同时简化了计算,加快了修复速度。此外,利用修复区域邻域的多层像素点的加权代替以往仅利用邻域一层的像素点对修复区域进行填充,减少噪声或者划痕亮度余弦衰减区域中的点对修复结果产生的影响,改善了修复效果,加强了修复结果的稳定性。实验证明所提方法对视频序列中划痕的修复是有效的。同时,该方法适用于自动的视频修复系统。An removal method of scratches in video sequences based on special information is presented in this paper. For the correlation in both ends of the vertical and horizontal scratches is weak, six neighborhoods of the target pixel for reference are used to restore the damaged area, thus maintaining the repair effect while reducing time cost. In addition, more circles of pixels along the scratch are ultilized instead of using only one to repair the damaged area, which reduces the impact of noises and the pixels in cosine variational regions to the result of restoration, and thus, improving the effect of the restoration and strengthening the stability. Experimental results show that the proposed method is effective for removal of scratches in video sequences. At the same time, it could be applied in automatically restoration system of the video sequence.

关 键 词：视频修复 划痕修复 整体变分 

分 类 号：TN941.1[电子电信—信号与信息处理]