Abstract
Scalable video coding (SVC) is currently developed as an extension of H.264/AVC. In the SVC encoder, an exhaustive search technique is employed to select the best coding mode for each macro block (MB). This technique achieves an optimal trade-off between rate and distortion, but it requires an extremely large encoding time. In this paper, we propose a fast mode decision algorithm for inter-layer coding at the enhancement layer. The proposed algorithm predicts the mode of each MB at the enhancement layer using the modes of a co-located MB and its neighboring MBs at the base layer. The proposed method can achieve a time saving of up to 74 % in spatial scalability and 63 % in coarse grain quality scalability with negligible loss of quality and bit rate increment.
Original language | English |
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Pages (from-to) | 1572-1580 |
Number of pages | 9 |
Journal | IEEE Transactions on Consumer Electronics |
Volume | 55 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2009 |
Keywords
- Coarse grain quality scalability
- Combined scalability
- Fast mode decision
- Inter-layer coding
- Scalable video coding
- Spatial scalability
- Temporal scalability
ASJC Scopus subject areas
- Media Technology
- Electrical and Electronic Engineering