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Fast Mode Decision Algorithm for Inter-Layer Coding in Scalable Video Coding
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- Authors
- Seon Tae Kim, Krishna Reddy Konda, Chun Su Park, Chang Sik Cho, Sung Jea Ko
- Issue Date
- 2009-08
- Citation
- IEEE Transactions on Consumer Electronics, v.55, no.3, pp.1572-1580
- ISSN
- 0098-3063
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- 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. © 2009 IEEE.
- KSP Keywords
- Base layer, Bit rate, Co-located, Coarse grain, Decision algorithm, Fast Mode Decision, Grain quality, Inter-layer, Loss of quality, Macro block, Rate-Distortion