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- Title
NEW DOMAIN DECOMPOSITION METHOD FOR QUALITY-AWARE PARALLEL H.264 VIDEO CODING.
- Authors
Aboalmaaly, Mohammed Faiz; Abdullah, Rosni; Kattan, Ali
- Abstract
In this paper, we present a new parallel granularity called "tiling" to parallelize the H.264 codec. The new parallel granularity, which has the same granularity level as the parallel slice-level H.264 codec, is based on decomposing the entire video frame into tiles by utilizing a new inherently parallel 2D domain decomposition method. To assess the proposed approach, its parallel scalability, bit rate, and parallel impact on visual quality (peak signal-to-noise ratio) are compared with those of other approaches. Empirical results show significant improvements in encoding time as compared to the serial and the parallel slice-level approaches. In terms of peak signal-to-noise ratio and bit rate, certain results improved, a few were comparable, while a few were discouraging, when compared to the results of the other approaches. However, addressing the limitations of the proposed method is highlighted as future work.
- Subjects
PARALLEL computers; DOMAIN decomposition methods; VIDEO coding; BIT rate; SCALABILITY; SIGNAL-to-noise ratio
- Publication
Malaysian Journal of Computer Science, 2014, Vol 27, Issue 3, p186
- ISSN
0127-9084
- Publication type
Article