Very low bit-rate wavelet video coding

被引：9

作者：

Cinkler, K ^{[1
]}

机构：

[1] Univ Bremen, Dept Telecommun, D-28359 Bremen, Germany

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1998年 / 16卷 / 01期

关键词：

discrete wavelet transform (DWT); edge-preserving coding; H.263; windowed overlapped block-matching motion compensation;

D O I：

10.1109/49.650916

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：

In this paper, an image sequence coding scheme for very low bit-rate coding is presented. The scheme is based on spatial redundancy reduction,ia the new edge-sensitive subband coding method and temporal redundancy reduction via windowed overlapped block-matching motion compensation. In this scheme, only significant regions of difference images are coded, Thus, the computational cost can be kept low, Significant regions are considered to be regions where motion is present (temporal activity) and/or regions where the image is very detailed (spatial activity), The significant regions are determined by an adaptive strategy based on both the motion vectors and edge map of the current image. The scheme has the main advantage that there are no blocking effects in the decoded images at all due to the properties of both the temporal and the spatial coding used, The overall visual performance of the coding scheme is very good.

引用

页码：4 / 11

页数：8

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