| A VLSI-oriented algorithm and its implementation for AVS chroma interpolation | |
| Zhu, Bingqiang ; He, Yun ; Mei, Shunliang | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | AVS Bilinear filtering Chroma Interpolation VLSI ARCHITECTURE EFFICIENT DECODER VIDEO Engineering, Electrical & Electronic |
| 中文摘要 | AVS (audio video coding standard) is the latest multimedia coding standard of China. Similar to H.264/AVC, AVS adopted the technology of fractional-pel-accurate motion compensation, which enhanced the compression efficiency. To obtain fractional pels, 4-tap FIR filters and bilinear filters are used for luma and chroma interpolation respectively. Unlike the VLSI-optimized FIR filters which could be implemented by adders and shifters, the bilinear filter for chroma is not so convenient for direct VLSI implementation due to its multiplications. In this paper, we propose a VLSI-oriented algorithm named SHAM (x-y-separated halved-approaching method) to accomplish the bilinear filtering. The proposed SHAM algorithm adopts a halved-approaching method which is an addition-and-shift-only method and with simpler data path. VLSI structures are also provide to implement the SHAM algorithm in this paper. Experiments based on UMC 0.18 mu m process show that the SHAM algorithm could be implemented with about 48% less silicon area or at doubled frequency compared with the direct implementation of the bilinear filter. (C) 2009 Elsevier B.V. All rights reserved. |
| 语种 | 英语 ; 英语 |
| 出版者 | ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/82301]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Zhu, Bingqiang,He, Yun,Mei, Shunliang. A VLSI-oriented algorithm and its implementation for AVS chroma interpolation[J],2010, 2010. |
| APA | Zhu, Bingqiang,He, Yun,&Mei, Shunliang.(2010).A VLSI-oriented algorithm and its implementation for AVS chroma interpolation.. |
| MLA | Zhu, Bingqiang,et al."A VLSI-oriented algorithm and its implementation for AVS chroma interpolation".(2010). |
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