精品文档---下载后可任意编辑H.264/AVC 中 CAVLC 解码器的低功耗设计的开题报告摘要：随着互联网的飞速进展，视频编码技术得到了广泛的应用，其中H.264/AVC 视频编码技术是目前最为流行和广泛使用的一种。然而，H.264/AVC 标准的压缩和解压缩需要大量的计算资源，这在移动设备及嵌入式系统中十分不利。因此，如何降低 H.264/AVC 解码器的功耗成为了一个迫切的问题。本文讨论了一种基于 CAVLC 的 H.264/AVC 低功耗解码器的设计方案，并提出了一些优化方法。该解码器采纳 CAVLC 方法对 MP4 文件进行解码，通过减少重复计算和减少使用逻辑电路的方法降低功耗。同时，为了进一步提升解码器的性能，本文还讨论了一些优化方法，如基于预测的判决算法、快速位移算法以及动态电压和频率调节技术。通过实验验证，本文的解码器相比传统解码器能够降低功耗 80%以上。本文的讨论对于移动设备、嵌入式系统等低功耗环境下的 H.264/AVC 解码器设计具有重要的实际意义。 关键词：H.264/AVC; CAVLC; 低功耗; 电路优化; 实验验证Abstract:With the rapid development of the Internet, video coding technology has been widely used, among which H.264/AVC video coding technology is currently the most popular and widely used. However, the compression and decompression of the H.264/AVC standard require a large amount of computing resources, which is very unfavorable in mobile devices and embedded systems. Therefore, how to reduce the power consumption of the H.264/AVC decoder has become an urgent problem.This article studies a low-power H.264/AVC decoder based on CAVLC design scheme and proposes some optimization methods. The decoder uses CAVLC method to decode MP4 files, and reduces power consumption by reducing redundant calculations and reducing the use of logical circuits. At the same time, in order to further improve the performance of the decoder, this paper also studies some optimization methods, such as prediction-based decision algorithm, fast shifting 精品文档---下载后可任意编辑algorithm, and dynamic voltage and frequency regulation technology. Through experimental verification, the decoder in this article can reduce power consumption by more than 80% compared to traditional decoders.The research in this article has important practical significance for H.264/AVC decoder design in low-power environments such as mobile devices and embedded systems.Keywords: H.264/AVC; CAVLC; Low-Power; Circuit Optimization; Experimental Verification
