Two-dimensional orthogonal DCT expansion in trapezoid and triangular blocks and modified JPEG image compression
In the conventional JPEG algorithm, an image is divided into eight by eight blocks and then the 2-D DCT is applied to encode each block. In this paper, we find that, in addition to rectangular blocks, the 2-D DCT is also orthogonal in the trapezoid and triangular blocks. Therefore, instead of eight...
Description complète
Détails bibliographiques
| Publié dans: | IEEE transactions on image processing : a publication of the IEEE Signal Processing Society. - 1992. - 22(2013), 9 vom: 19. Sept., Seite 3664-75
|
|---|
| Auteur principal: |
Ding, Jian-Jiun
(Auteur) |
|---|
| Autres auteurs: |
Huang, Ying-Wun,
Lin, Pao-Yen,
Pei, Soo-Chang,
Chen, Hsin-Hui,
Wang, Yu-Hsiang |
|---|
| Format: | Article en ligne
|
|---|
| Langue: | English |
|---|
| Publié: |
2013
|
|---|
| Accès à la collection: | IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|
|---|
| Sujets: | Journal Article
Research Support, Non-U.S. Gov't |
|---|