基于比例反馈的H.264/AVC高清帧内速率控制

Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific Pub Date : 2014-12-01 DOI:10.1109/APSIPA.2014.7041537

Yanping Zhou, Y. Duan, Jun Sun, Zongming Guo

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引用次数: 0

摘要

本文重点研究了H.264/AVC High Profile的帧内速率控制，提出了一种基于帧梯度的帧内速率控制算法。在该算法中，提出了一种以帧梯度作为帧复杂度的速率梯度量化参数模型。然后，提出了一种比例反馈方案，并结合自适应优化方法来实现恒定比特率。对不同目标速率的各种序列进行了严格的实验。实验结果表明，该方法在不影响视频质量的前提下，提供了更稳定的速率输出，减少了速率波动，优于JM16.0。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proportional feedback based rate control for intra frame of H.264/AVC high profile

This paper focuses on the intra frame rate control of H.264/AVC High Profile and introduces a new frame gradient-based rate control algorithm. In this algorithm, a rate-gradient-quantization parameter model with frame gradient employed as frame complexity is proposed. Then, a proportional feedback scheme, along with an adaptive optimization method, is presented to achieve constant bitrate. Rigorous experiments covering various sequences of different target rates are carried out. Experimental results show that the proposed rate control method outperforms JM16.0 by offering a more constant rate output and reducing rate fluctuation, without video quality loss.

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Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific

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