A hybrid video codec with block-based and mesh-based motion compensation modes

被引：0

作者：

Altunbasak, Y ^{[1
]}

Tekalp, AM

机构：

[1] Univ Rochester, Dept Elect Engn, Rochester, NY 14627 USA

[2] Univ Rochester, Ctr Elect Imaging Syst, Rochester, NY 14627 USA

[3] Hewlett Packard Labs, Palo Alto, CA 94304 USA

[4] Univ Rochester, Dept Engn, Rochester, NY 14627 USA

来源：

INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY | 1998年 / 9卷 / 04期

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article presents a complete video codec which supports both block-based and mesh-based motion compensation modes. While the mesh-based modes are suitable for spatially continuous representation of in-plane rotations, zooms, and other motions that can be represented by parametric mappings, the block-based modes (especially overlapped block matching) perform better around motion boundaries. Therefore, a hybrid codec with block-based and mesh-based modes, which nicely complement each other, yields the best results over a wide range of video at low bit rates. Experimental results with MPEG-4 test sequences are shown to demonstrate the performance of the proposed hybrid codec. (C) 1998 John Wiley & Sons, Inc. Int J Imaging Syst Technol, 9, 248-256, 1998.

引用

页码：248 / 256

页数：9

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