The search functionality is under construction.
The search functionality is under construction.

Alternative Transform for Residual Blocks in H.264/AVC

Sung-Chang LIM, Dae-Yeon KIM, Yung-Lyul LEE

  • Full Text Views

    0

  • Cite this

Summary :

In this paper, an alternative transform based on the correlation of the residual block is proposed for the improvement of the H.264/AVC coding efficiency. A discrete sine transform is used alternately with a discrete cosine transform in order to greatly compact the energy of the signal when the correlation coefficients of the signal are in the range of -0.5 to 0.5. Therefore, the discrete sine transform is suggested to be used in conjunction with the discrete cosine transform in H.264/AVC. The alternative transform selecting the optimal transform between two transforms by using rate-distortion optimization shows a coding gain compared with H.264/AVC. The proposed method achieves a PSNR gain of up to 1.0 dB compared to JM 10.2 at relatively high bitrates.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E91-A No.8 pp.2272-2276
Publication Date
2008/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e91-a.8.2272
Type of Manuscript
LETTER
Category
Image

Authors

Keyword