摘要
结合胶片电影的特点,提出基于胶片电影的数字化修复系统框架。其中斑点检测算法通过引入纹理匹配方法达到了提高正确检测率与错误检测率比值的目的。对于亮度闪烁,本文提出基于运动补偿及阈值法的闪烁修正方法,提高了算法效率并降低了误检测率。对于垂直划痕,提出基于Canny理论和时空域特征的垂直划痕检测算法,实现准确地获取垂直划痕的长度、起始点位置与终点位置信息,提高了有限长度划痕的正确检测率。
Combining with the characters of celluloid films,this paper provides a digital restoration system based on celluloid films.The restoration methods of blotches improve the ratio between correct detection results and false alarms by employing texture matching.Intensity flicker correction based on motion compensation and threshold method is developed,which improves the efficiency of the method and reduce the false alarms.Scratch lines detection method based on canny theory and spa-temporal is proposed,which enhances the correct detection rate by obtain the length,start point and end point of scratch line accurately.
出处
《计算机与现代化》
2013年第3期160-164,共5页
Computer and Modernization
基金
天津市科技支撑重点资助项目(11ZCKFGX01200)
关键词
视频修复
视频增强
斑点检测
亮度闪烁修正
垂直划痕检测
video restoration
video enhancement
blotch detection
intensity flicker correction
scratch line detection
