Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2008.06a
- /
- Pages.45-48
- /
- 2008
Scalable Video Coding and its Application to AT-DMB
스케일러블 비디오 부호화와 AT-DMB
- Kim, Jae-Gon (Korea Aerospace University) ;
- Kim, Jin-Soo (Hanbat National University) ;
- Choi, Hae-Chul (ETRI) ;
- Kang, Jung-Won (ETRI)
- Published : 2008.06.18
Abstract
This paper presents a brief overview of scalable video coding (SVC) with a focus on spatial scalability and its application to Advanced Terrestrial-DMB (AT-DMB). By adopting SVC with two spatial-layers and hierarchical modulation, AT-DMB provides standard definition (SD)-level video while maintaining compatability with the existing CIF-level video. In this paper, we suggest a layer-configuration and coding parameters of SVC which are well suit for an AT-DMB system. In order to reduce extremely large encoding time resulted by an exhaustive search of a macroblock coding mode in spatial scalability, we propose a fast mode decision method which excludes redundant modes in each layer. It utilizes the mode distribution of each layer and their correlations. Experimental results show that a simplified encoding model with the method reduces the computational complexity significantly with negligible coding loss.
Keywords