Partial decoding scheme for H.264/AVC decoder
Partial decoding scheme for H.264/AVC decoder
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DOI：
10.1109/ispacs.2010.5704685
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发表时间：
2010-12
期刊：
影响因子：
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通讯作者：
Chen Liu;Xin Jin;T. Zhang;S. Goto
中科院分区：
文献类型：
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作者：
Chen Liu;Xin Jin;T. Zhang;S. Goto
本文提出了一种面向感兴趣区域（ROI）的部分 H.264/AVC 解码方案，以实现在低分辨率屏幕上低功耗、低复杂度的高清视频内容显示。所提出的方案是基于宏块级的部分解码，它采用多种策略来保持 ROI 中良好的视频质量。仿真结果表明，所提出的方案提供了更好的视觉质量，并且ROI中的PSNR损失质量非常有限，但其计算复杂度和功耗却低得多。平均而言，它减少了约 40.66% 的解码时间，测试用例中 ROI 中的 PSNR 损失高达 0.77dB。部分解码的序列在 ROI 中保留更多细节，从而提供更好的用户体验。该建议对于便携式设备特别有用。
In this paper, a region of interest (ROI) oriented partial H.264/AVC decoding scheme is proposed to enable low-power and low-complexity HD video content display on low resolution screens. The proposed scheme is a macroblock level based partial decoding, which employs several strategies to maintain the good video quality in the ROI. The simulation results show that, the proposed scheme provides better visual quality, and very limited PSNR loss quality in the ROI, but it achieves much lower computational complexity and power consumption. On average, it reduces the decoding time by about 40.66% with the PSNR loss up to 0.77dB in the ROI among the test cases. The partially decoded sequences maintain more details in the ROI, thus provide better user experience. This proposal is especially useful for the portable devices.