An Improved Three-Step Hierarchical Motion Estimation Algorithm and Its Cost-Effective VLSI Architecture
Autor: | Xi Zhong Lou, Hai bing Yin, Zhe Lei Xia |
---|---|
Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Advances in Multimedia Information Processing – PCM 2007 ISBN: 9783540772545 PCM |
DOI: | 10.1007/978-3-540-77255-2_98 |
Popis: | This paper proposes a cost-effective VLSI architecture to improve the three-step search (TSS) algorithm for efficient motion estimation. A weighted SAD is defined as the new distortion measure instead of SAD for motion vector selection to remedy the fault of the TSS algorithm. The proposed TSS architecture is superior to conventional TSS architecture in terms of coding performance. Moreover, the additional hardware implementation cost of the proposed architecture is relatively negligible. The proposed architecture achieves best tradeoff in terms of speed and hardware cost. |
Databáze: | OpenAIRE |
Externí odkaz: |