A HIGHLY EFFECTIVE DCT-DOMAIN FILTERING ALGORITHM FOR DEBLOCKING TRANSFORM COMPRESSED IMAGES

摘要：

In this paper,a new DCT-domain filtering technique is proposed to remove the blocking artifacts in highly compressed images.We choose overlapping cross-blockboundary 16 × 16 macro-block as basic processing unit to ensure effective deblocking.For each macro-block,simple adaptive low pass filtering (LPF) is performed,which generalizes an earlier scheme introduced in 1.Experimental results show that the new method does a good job and outperforms several classic DCT-domain deblocking algorithms both in terms of objective and subjective measures.Computational issues with the new scheme are also briefly discussed.Moreover,the proposed system is shown to provide flexible framework to include more adaptive operations.

作者: Song Zhang Fang Zhu

作者单位: School of Communication Engineering Hangzhou Dianzi University,Hangzhou,China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）