Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques
文献类型：期刊论文
| 作者 | Lu, Y; Gao, W; Wu, F |
| 刊名 | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
 |
| 出版日期 | 2003-05-01 |
| 卷号 | 13期号:5页码:394-405 |
| 关键词 | MPEG-4 object-based video coding spatial prediction sprite generation static sprite coding |
| ISSN号 | 1051-8215 |
| DOI | 10.1109/TCSVT.2003.811607 |
| 英文摘要 | 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. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000183343000004 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/13682]  |
| 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.Microsoft Res Asia, Beijing 100080, Peoples R China 2.Harbin Inst Technol, Dept Comp Sci, Harbin 150001, Peoples R China 3.Comp Technol Inst, 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. |
入库方式： OAI收割
来源：计算技术研究所
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