Utility-Driven Adaptive Preprocessing for Screen Content Video   Compression

doi:10.1109/TMM.2016.2625276

CORC > 北京大学 > 信息科学技术学院

	Utility-Driven Adaptive Preprocessing for Screen Content Video Compression
	Wang, Shiqi ; Zhang, Xinfeng ; Liu, Xianming ; Zhang, Jian ; Ma, Siwei ; Gao, Wen
刊名	IEEE TRANSACTIONS ON MULTIMEDIA
	2017
关键词	Block type identification screen content video (SCV) temporal masking utility information QUALITY ASSESSMENT CONTENT IMAGES BLUR
DOI	10.1109/TMM.2016.2625276
英文摘要	In this work, we propose a utility-driven preprocessing technique for high-efficiency screen content video (SCV) compression based on the temporal masking effect, which was found to be a fundamental attribute that plays an important role in human visual perception of video quality, but has not been fully exploited in the context of SCV coding. Specifically, we investigate the temporal masking effect from the perspective of perceived utility, which allows us to preserve the quality of the high utility content and substitute the low utility regions with the corresponding smooth version. To distinguish the regional utilities, a specifically designed block type identification algorithm for screen content is employed to measure the local properties. Subsequently, the Gaussian filter is applied to smooth out the high-frequency components in the detected low utility regions to save consumption bits. Validations based on subjective testings show that the proposed approach is capable of achieving significant bitrate savings with little sacrifice on the final utility compared with the conventional SCV coding scheme.; National Natural Science Foundation of China [61322106, 61632001, 61571017, 61300110, 61672193]; National Basic Research Program of China (973 Program) [2015CB351800]; SCI(E); ARTICLE; 3; 660-667; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474971]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang, Shiqi,Zhang, Xinfeng,Liu, Xianming,et al. Utility-Driven Adaptive Preprocessing for Screen Content Video Compression[J]. IEEE TRANSACTIONS ON MULTIMEDIA,2017.
APA	Wang, Shiqi,Zhang, Xinfeng,Liu, Xianming,Zhang, Jian,Ma, Siwei,&Gao, Wen.(2017).Utility-Driven Adaptive Preprocessing for Screen Content Video Compression.IEEE TRANSACTIONS ON MULTIMEDIA.
MLA	Wang, Shiqi,et al."Utility-Driven Adaptive Preprocessing for Screen Content Video Compression".IEEE TRANSACTIONS ON MULTIMEDIA (2017).