The scalable video coding (SVC) standard adopts a simple interlayer intra prediction (ILIP) method for encoding scalable video sequences. In the conventional ILIP, a prediction signal for the macroblock (MB) of the enhancement layer (EL) is obtained by simply upsampling the colocated block of the base layer (BL). We propose an improved ILIP method by generalizing the original one adopted in the SVC standard. In the proposed ILIP method, the MB of the EL is predicted using all MBs of the BL. Experimental results show that the proposed algorithm can reduce the bit rate by 1.91% to 6.44%, as compared with the conventional ILIP, while the average PSNR is not decreased.
|Number of pages||6|
|Journal||IEEE Transactions on Circuits and Systems for Video Technology|
|Publication status||Published - 2009 Dec|
Bibliographical noteFunding Information:
Manuscript received October 8, 2008; revised February 8, 2009. First version published July 7, 2009; current version published December 1, 2009. This work was supported by the Seoul Future Contents Convergence (SFCC) Cluster, established by the Seoul R&BD Program. This paper was recommended by Associate Editor J. Boyce.
Copyright 2010 Elsevier B.V., All rights reserved.
- Displacement vector
- Interlayer intra prediction
ASJC Scopus subject areas
- Media Technology
- Electrical and Electronic Engineering