老电影全局闪烁修复系统的设计与实现  

Implementation and design of old film global flicker restoration system

作　　者：黄曦[1] 丁友东[1] 吴兵[1] 

机构地区：[1]上海大学上海电影学院,上海200072

出　　处：《电视技术》2016年第12期125-129,共5页Video Engineering

基　　金：国家自然科学基金项目(61402278:61303093);上海市自然科学基金项目(14ZR1415800);上海市科委科技攻关项目(14511108400);上海市教委科研创新项目(14YZ023);2015年度上海大学电影学高峰学科

摘　　要：针对老电影中褪色闪烁的现象,研究了一种基于颜色传递和色彩校正的全局闪烁修复方法。该方法主要分三个步骤对视频序列进行修复,首先对导入的图像序列进行分镜并判断是否存在闪烁,然后对闪烁序列进行参考帧选取,如果无参考帧,则采用色彩校正来产生参考帧,最后通过颜色传递进行全局颜色闪烁修复。在VS2013中使用OpenCV实现了相关算法,并详细介绍了系统实现的关键代码。实验表明,该系统能够较好地完成对老电影全局闪烁的交互式修复。Aiming at flicker phenomenon in old films, a method based on color transform and hue correction is presented. There are three key steps to remove flicker on the video sequence. Firstly, the imported sequence is grouped and then each group is judged whether there is flicker. Secondly, reference frame is chosen in each group. If there is no appropriate one, a frame is corrected with hue correction algorithm. Finally, global flicker is removed by using color transform algorithm in each sequence group. The relevant algorithm is designed by VS2013 and OpenCV, key codes are given as well. Results show that the method can effectively remove global flicker in old films, and is suitable for automated interactive restoration system.

关 键 词：老电影修复 全局闪烁 颜色传递 色彩校正 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]