Parallel deblocking filtering algorithm on GPU

Qian Zhou; Jiao Long; Hao Zhang; Lei Lei; Jiashu Zhang

doi:10.1117/12.2503839

9 August 2018 Parallel deblocking filtering algorithm on GPU

Qian Zhou, Jiao Long, Hao Zhang, Lei Lei, Jiashu Zhang

Proceedings Volume 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018); 1080640 (2018) https://doi.org/10.1117/12.2503839
Event: Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018, Shanghai, China

Abstract

In this paper, a parallel loop filtering algorithm based on GPU is proposed to accelerate the processing speed for the loop filter module in H.264/AVC protocol. By analyzing the process of two edges are filtering in parallel, this paper proposed a method that changes the boundary strength to make the calculation of deblocking filter adapt to the GPU hardware. Through mapping the deblocking filter onto CUDA threads, this algorithm is able to complete the deblocking filter operation once for all. The experiment shows that the proposed algorithm has little loss on the PSNR of image while the acceleration of HD video can be up to 400%.

Citation Download Citation

Qian Zhou, Jiao Long, Hao Zhang, Lei Lei, and Jiashu Zhang "Parallel deblocking filtering algorithm on GPU", Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 1080640 (9 August 2018); https://doi.org/10.1117/12.2503839

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