A Novel Rough Sets based key frame extraction algorithm in compressed-domain

doi:10.3923/itj.2008.1043.1048

	A Novel Rough Sets based key frame extraction algorithm in compressed-domain
	Li, Xiang-Wei 1,2; Li, Zhan-Ming 1; Zhang, Ming-Xin 3; Wei, Zhe 1; Zhang, Guo-Quan 1
刊名	Information Technology Journal
	2008
卷号	7 期号:7 页码:1043-1048
关键词	Extraction Information systems Information use Rough set theory Compressed domain Conventional algorithms DC coefficient DCT coefficients Discrete Cosine Transform(DCT) Key frames Key-frame extraction Video frame
ISSN号	18125638
DOI	10.3923/itj.2008.1043.1048
英文摘要	In this study, we propose a novel key frame extraction algorithm based on Rough Sets (RS) in Discrete Cosine Transform (DCT) compressed-domain. Firstly, we extract DCT coefficients in compressed-domain, select and preprocess the DC coefficients that derived from DCT coefficients. Secondly, We construct Information System with DC coefficients. Finally, we reduce Information System using attributes reduced theory of RS and obtained the representation of the video frames by reduced DC coefficients. Experimental results show that the proposed algorithm is fast and effective. Compared to conventional algorithm, our algorithm enjoys the following advantages: (1) the numbers of the key frame extracted using our algorithm become more scientific; (2) the algorithm can avoid the expensive computations in decompression processes. © 2008 Asian Network for Scientific Information.
语种	英语
出版者	Asian Network for Scientific Information
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111934]
专题	电气工程与信息工程学院
作者单位	1.College of Electrical Engineering and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.Department of Software Engineering, Lanzhou Polytechnic College, Lanzhou 730050, China; 3.College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China
推荐引用方式 GB/T 7714	Li, Xiang-Wei,Li, Zhan-Ming,Zhang, Ming-Xin,et al. A Novel Rough Sets based key frame extraction algorithm in compressed-domain[J]. Information Technology Journal,2008,7(7):1043-1048.
APA	Li, Xiang-Wei,Li, Zhan-Ming,Zhang, Ming-Xin,Wei, Zhe,&Zhang, Guo-Quan.(2008).A Novel Rough Sets based key frame extraction algorithm in compressed-domain.Information Technology Journal,7(7),1043-1048.
MLA	Li, Xiang-Wei,et al."A Novel Rough Sets based key frame extraction algorithm in compressed-domain".Information Technology Journal 7.7(2008):1043-1048.