Image Compression Based on Time-Domain Lapped Transform and Quadtree Partition

被引：0
|
作者：
Ma, Xiuhua [1 ]
Dong, Jiwen [1 ]
Wang, Lei [1 ]
机构：
[1] Univ Jinan, Shandong Prov Key Lab Network Based Intelligent C, Sch Informat Sci & Engn, Jinan 250022, Peoples R China
来源：
ALGORITHMS AND ARCHITECTURES FOR PARALLEL PROCESSING, ICA3PP 2014, PT II | 2014年 / 8631卷
关键词：
quadtree partition; DCT; time-domain lapped transform; image compression; EFFICIENT;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
We proposed a new image compression system based on quadtree partition and time-domain lapped transform (TDLT) as core transform technology. The system obtained transformation region of different sizes through quadtree partition. And it removed the correlation by utilizing pixel similarity in image regions. The performance of discrete cosine transform (DCT) was improved with the method of pre-filter and post-filter. Superior performance can be achieved in most cases than the fixed block TDLT and DWT about the rate-distortion and subjective visual quality.
引用
收藏
页码：553 / 559
页数：7
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