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  • 學位論文

一個針對H.264/AVC高解析度即時壓縮的流量控制器架構

A High Quality Hardwired Rate Controller for H.264/AVC Real-time Video Encoding

指導教授 : 林永隆

摘要


我們在H.264先進影像壓縮技術下,提出了一套流量控制器的硬體架構,這套架構能夠使得我們在固定頻寬的條件下,在緩衝空間裡順利的編碼與解碼影像資料流,以達到較佳的畫質。我們採用H.264先進影像壓縮技術的參考軟體演算法,以得到其不錯的壓縮品質,並且修改演算法使其應用在硬體上能夠最佳化。我們另外提出一些提升硬體精確度的方法,使得流量控制器能精準的運作。藉由這些方法將演算法應用到我們的硬體架構,我們的流量控制器能夠在1080p HD (1920x1088) 的高解析度下達到及時壓縮的高效能,並且和H.264先進影像壓縮技術的參考軟體有一樣的壓縮品質。

並列摘要


We propose a H.264/AVC hardwired Rate Controller. We modify the algorithm of H.264/AVC reference software for the advantage of both high video quality and hardware implementation. It can encode 1080p HD (1920x1088) video in real-time and achieve the same video quality as the reference software.

參考文獻


[1] J. Ribas-Corbera, S. Lei, “Rate Control in DCT Video Coding for Low-Delay Communications,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 9, pp. 172-185, FEB. 1999.
[5] M. Jiang, N. Ling, “On Enhancing H.264/AVC Video Rate Control by PSNR-Based Frame Complexity Estimation,” IEEE Transactions on Consumer Electronics, vol.51, no.1, pp. 281-286, FEB. 2005.
[6] S. Ma, W. Gao, Y. Lu, “Rate-Distortion Analysis for H.264/AVC Video Coding and its Application to Rate Control,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 15, no. 12, pp. 1533-1544, DEC. 2005.
[7] D. Bressoud, “A Radical Approach to Real Analysis 2nd edition,” JUN. 2006
http://www.transeda.com/index.php?option=com_content&task=view&id=88&Itemid=273

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