Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques

doi:10.1109/TCSVT.2003.811607

	Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques
	Lu, Y ; Gao, W ; Wu, F
	2003-05-01
发表期刊	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN	1051-8215
卷号	13 期号:5 页码:394-405
摘要	In this paper, an efficient static sprite-generation and compression scheme is proposed for background video coding. First, considering both short- and long-term motion influences, a hybrid technique is proposed in the sprite generation to search the background motion relative to the generated sprite image. In order to prevent the sprite image from being blurred due to the inaccurate segmentation, a reliability-based blending technique is developed. Both the background video at every frame and the sprite image are categorized into reliable, unreliable, and undefined regions. Each region uses a unique strategy in blending. This makes the proposed technique work well even in the case of coarse segmentation. Second, an arbitrary-shape spatial prediction technique is proposed to efficiently compress the sprite image. Due to the property of the background video object, the sprite image often contains many flat and texture-correlation regions. Therefore, utilizing directional spatial prediction can significantly improve the efficiency of sprite coding. In general, the generated sprite is not a rectangular image. Since traditio I spatial-prediction methods have difficulty in handling those contour blocks, a padding technique derived from rate-distortion optimization is proposed. Experimental results show that the proposed scheme can generate the background sprite image with better visual quality. Compared with the MPEG-4 sprite-coding scheme, it can also significantly improve the coding efficiency up to 3.0 dB at low bit rates.
关键词	MPEG-4 object-based video coding spatial prediction sprite generation static sprite coding
DOI	10.1109/TCSVT.2003.811607
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000183343000004
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/13683
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Lu, Y
作者单位	1.Harbin Inst Technol, Dept Comp Sci, Harbin 150001, Peoples R China 2.Comp Technol Inst, Beijing 100080, Peoples R China 3.Microsoft Res Asia, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Lu, Y,Gao, W,Wu, F. Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2003,13(5):394-405.
APA	Lu, Y,Gao, W,&Wu, F.(2003).Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,13(5),394-405.
MLA	Lu, Y,et al."Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 13.5(2003):394-405.