基于帧间差值的视频镜头渐变检测算法  

Gradual video shot boundary detection algorithm based on difference between frames

作　　者：明巍[1] 丰洪才[1] 袁小娟[1] 吴新成[2] 

机构地区：[1]武汉工业学院计算机与信息工程系,湖北武汉430023 [2]武汉工业学院机械工程学院,湖北武汉430023

出　　处：《计算机工程与设计》2010年第24期5314-5316,5320,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(60873030/F020204);湖北省自然科学基金项目(2009Chb008);湖北省教育厅科研基金项目(D20101703)

摘　　要：针对在视频同一镜头中运动因素引起的帧间差值波动与镜头渐变过程的帧间差值波动情况相似可能对镜头渐变产生误检的问题,利用镜头渐变是从一个镜头转换到一个新的镜头的本质特征,通过分析帧间差值曲线,提出了省略帧间差值波动,直接计算帧间差值波动前后两帧差值的视频镜头渐变检测算法。利用该算法对若干视频进行实验,并与双阈值累计帧差算法进行比较,实验结果表明了该算法在视频镜头渐变检测中的有效性。Aimed at the difference fluctuations between frames which are induced by the movement in the same shot and the fluctuations of the difference are similar to the ones which are induced by the gradual video shot,the gradual video shot may be inspected flasely.Making useful of the essential characteristics of the gradual video shot that shot transition is from a shot to a new shot and analyzing the curve of the difference between frames,an algorithm is provided by omitting the volatility of the process and directly calculating the dif-ference between the first frame and the end frame of the fluctuations.Using the algorithm on a lot of video,and compare with double-threshold cumulative frame difference algorithm,the algorithm is effective in gradual video shot boundary detection.

关 键 词：差值曲线 波动过程 运动因素 HSV颜色直方图 镜头渐变 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]