Name
Abstract | ||
|---|---|---|
We propose a direction-adaptive block transform that exploits the directionality in images to improve the compression performance. It can be viewed as a generalization of variable block-size transforms with the inclusion of non-rectangular partitions and directional transforms. As a block transform, it can be directly combined with block-wise intra and inter prediction in video coding standards. Experimental results show that the proposed transform outperforms the variable block-size 2-D DCT by up to 3 dB. It also outperforms a previously proposed direction-adaptive DCT by up to 2 dB. When combined with intra prediction, the proposed transform further provides a gain of 0.5 to 2 dB upon intra prediction with the 2-D DCT. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/ICIP.2008.4711712 | ICIP |
Keywords | Field | DocType |
block-wise intra prediction,image coding,block-wise inter prediction,direction-adaptive partitioned block transform,variable block-size 2d dct,data compression,video coding standard,discrete cosine transforms,intra prediction,block trans- form,direction adaptation,variable block-size transforms,block transform,image compression,index terms— image coding,transform coding,indexing terms | Block transform,Pattern recognition,Lapped transform,Computer science,Discrete cosine transform,Transform coding,Image coding,Coding (social sciences),Artificial intelligence,Data compression,Image compression | Conference |
ISSN | ISBN | Citations |
1522-4880 E-ISBN : 978-1-4244-1764-3 | 978-1-4244-1764-3 | 24 |
PageRank | References | Authors |
2.05 | 18 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chuo-Ling Chang | 1 | 247 | 18.15 |
| Bernd Girod | 2 | 8988 | 1062.96 |