標題: An in/post-loop deblocking filter with hybrid filtering schedule
作者: Liu, Tsu-Ming
Lee, Wen-Ping
Lee, Chen-Yi
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: deblocking filter;H.264/AVC;high-throughput;MPEG-4
公開日期: 1-七月-2007
摘要: In this paper, we propose a high-throughput deblocking filter to perform the in-loop or post-loop filtering process for different standard requirements. The performance improvement is very mild if we replace a post-loop filter with an in-loop filter. To alleviate this problem, we derive an integration-oriented algorithm that can be reconfigured as the in-loop or, post-loop filter. Moreover, we develop a hybrid filtering schedule to reach a lower bound of processing cycles. In particular, we reschedule the filtering order and reuse the intermediate pixels when the deblocking filter switches the filtered edges from vertical to horizontal direction. Finally, a 0.18-mu m CMOS design that performs the in/post-loop filter with the hybrid filtering schedule is implemented. The synthesized gate counts are 21.1 K which is reduced to 70% of preliminary design that performs the in-loop or post-loop filter separately. Moreover, it achieves 4 x 10(5) macroblock/s of throughput rate at a 100-MHz clock rate.
URI: http://dx.doi.org/10.1109/TCSVT.2007.897467
http://hdl.handle.net/11536/10642
ISSN: 1051-8215
DOI: 10.1109/TCSVT.2007.897467
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
Volume: 17
Issue: 7
起始頁: 937
結束頁: 943
顯示於類別:期刊論文


文件中的檔案:

  1. 000247785900016.pdf