2007 IEEE International Conference on Image Processing - San Antonio, Texas, U.S.A. - September 16-19, 2007

Technical Program

Paper Detail

Paper:WP-P1.4
Session:Implementation of Image and Video Processing Systems II / Biomedical Imaging
Time:Wednesday, September 19, 14:30 - 17:10
Presentation: Poster
Title: DSP IMPLEMENTATION OF DEBLOCKING FILTER FOR AVS
Authors: Zhigang Yang; Harbin Institute of Technology 
 Wen Gao; Chinese Academy of Sciences 
 Yan Liu; Harbin Institute of Technology 
 Debin Zhao; Harbin Institute of Technology 
Abstract: The in-loop deblocking filter contains highly adaptive processing on both sample level and block edge level, which inevitably appears in the loop kernel of the algorithm. Therefore it is a challenge for parallel processing on a digital signal processor (DSP) platform. In this paper, pipelined DSP solutions to the in-loop deblocking filter in AVS1-P2 are presented. First, the whole filter process is divided into six sub-processes, so that the global filter structure can be improved to achieve regular processing flow. Then software pipelines are designed for these sub-processes, with elaborately allocating functional units and carefully choosing enhanced assembly instructions based on the DSP platform. The simulated results show that this efficient implementation can easily support real-time filter processing for high resolution videos.



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