A low bit-rate video coding algorithm based on blocking regional wavelet transform with border processing

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344) Pub Date : 1998-10-12 DOI:10.1109/ICOSP.1998.770339

Zhang Xudong, Wang Desheng, Peng Ying-ning

{"title":"A low bit-rate video coding algorithm based on blocking regional wavelet transform with border processing","authors":"Zhang Xudong, Wang Desheng, Peng Ying-ning","doi":"10.1109/ICOSP.1998.770339","DOIUrl":null,"url":null,"abstract":"A novel video coding scheme based on the blocking regional wavelet transform and overlapped motion compensation is researched in this paper. Several new or improved algorithms are proposed. The high-energy regions of interframe predicted difference are first detected using a hierarchical sliding-window region forming algorithm. The regional border is processed to reduce ringing-effects. Wavelet decomposition and quantization are carried out only for these regions. A quantization model based on HVS spatiality-frequency and time-frequency features is used in the coding algorithm. An improved single-pass scanned zero-tree is employed to represent quantized wavelet coefficients. This scheme reduces the bit rate by about 36%-51% or gets a distinct improvement in decoding video quality by cutting down ringing-effects at the same bit rate compared with traditional wavelet-based coding algorithms. Simulation results show acceptable image quality for CIF resolution at low bit-rate and very low bit-rate.","PeriodicalId":145700,"journal":{"name":"ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICOSP.1998.770339","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

A novel video coding scheme based on the blocking regional wavelet transform and overlapped motion compensation is researched in this paper. Several new or improved algorithms are proposed. The high-energy regions of interframe predicted difference are first detected using a hierarchical sliding-window region forming algorithm. The regional border is processed to reduce ringing-effects. Wavelet decomposition and quantization are carried out only for these regions. A quantization model based on HVS spatiality-frequency and time-frequency features is used in the coding algorithm. An improved single-pass scanned zero-tree is employed to represent quantized wavelet coefficients. This scheme reduces the bit rate by about 36%-51% or gets a distinct improvement in decoding video quality by cutting down ringing-effects at the same bit rate compared with traditional wavelet-based coding algorithms. Simulation results show acceptable image quality for CIF resolution at low bit-rate and very low bit-rate.

查看原文本刊更多论文

基于边界处理的块区域小波变换的低码率视频编码算法

研究了一种基于块化区域小波变换和重叠运动补偿的视频编码方法。提出了几种新的或改进的算法。首先采用分层滑动窗区域形成算法检测帧间预测差的高能区域;对区域边界进行处理，以减少振铃效应。仅对这些区域进行小波分解和量化。编码算法采用了基于HVS空频和时频特征的量化模型。采用改进的单次扫描零树来表示量化的小波系数。与传统的基于小波的编码算法相比，该方案可将码率降低约36%-51%，或在相同码率下通过减少环效应而明显提高解码视频质量。仿真结果表明，在低比特率和极低比特率下，CIF分辨率下的图像质量是可以接受的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344)

自引率

0.00%

发文量