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	Depth perceptual region-of-interest based multiview video coding
	Zhang, Yun1,2,3; Jiang, Gangyi1,2; Yu, Mei1; Yang, You2; Peng, Zongju1; Chen, Ken1
刊名	Journal of visual communication and image representation
	2010-07-01
卷号	21期号:5-6页码:498-512
关键词	Three-dimensional television Multiview video coding Multiview video plus depth Depth perceptual region-of-interest Bit allocation Inter-view correlation Hierarchical b picture Human visual system
ISSN号	1047-3203
DOI	10.1016/j.jvcir.2010.03.002
通讯作者	Jiang, gangyi(jianggangyi@126.com)
英文摘要	Multiview video (mvv) has attracted considerable attention recently since it is capable of providing users with three-dimensional perception and interactive functionalities. however, these mvv data require large mount of storage and bandwidth in network transmission. in this paper, we present a novel depth perceptual region-of-interest (dp-roi) based multiview video coding (rmvc) scheme to extensively improve data compression efficiency by exploiting redundancies in depth perception. firstly, we define dp-roi according to the three-dimensional depth sensation of human visual system. then, a framework of rmvc is developed to improve compression efficiency by properly segmenting the mw into different macroblock wise dp-rois and encoding them separately. and then, we propose three fast depth based dp-roi extraction and tracking algorithms by jointly using motion, texture, depth as well as previous extracted dp-rois. finally, on the basis of the extracted dp-roi, bit allocation optimization model is proposed to allocate more bits on dp-rois for high image quality and fewer bits on background regions for high compression ratio. experimental results show that the presented rmvc scheme achieves significant coding gains at high rate while comparing with original joint multiview video model. to be specific, up to 14.22-23.32% bit-rate are saved while 0.16-0.68 db coding gains are achieved in dp-rois at the cost of the image quality degradation in background. crown copyright (c) 2010 published by elsevier inc. all rights reserved.
WOS关键词	EXTRACTION ; ATTENTION ; SCHEME
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Software Engineering
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000278970600012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2408719
专题	中国科学院大学
通讯作者	Jiang, Gangyi
作者单位	1.Ningbo Univ, Fac Informat Sci & Engn, Ningbo 315211, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yun,Jiang, Gangyi,Yu, Mei,et al. Depth perceptual region-of-interest based multiview video coding[J]. Journal of visual communication and image representation,2010,21(5-6):498-512.
APA	Zhang, Yun,Jiang, Gangyi,Yu, Mei,Yang, You,Peng, Zongju,&Chen, Ken.(2010).Depth perceptual region-of-interest based multiview video coding.Journal of visual communication and image representation,21(5-6),498-512.
MLA	Zhang, Yun,et al."Depth perceptual region-of-interest based multiview video coding".Journal of visual communication and image representation 21.5-6(2010):498-512.

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