A Dynamic Quality-Adjustable H.264 Video Encoder for Power-Aware Video Applications

作者：Chang Hsiu Cheng^*; Chen Jia Wei; Wu Bing Tsung; Su Ching Lung; Wang Jinn Shyan; Guo Jiun In

来源：IEEE Transactions on Circuits and Systems for Video Technology, 2009, 19(12): 1739-1754.

DOI：10.1109/TCSVT.2009.2026958

• Baseline profile
• H.264
• HD720
• quality-adjustable
• video encoder

This paper proposes a dynamic quality-adjustable H. 264 baseline profile (BP) video encoder that comprises 470 Kgates and 13.3 kB SRAM in a core size of 4.3 x 4.3 mm(2) using TSMC 0.13 mu m 1P8M CMOS technology. Exploiting parameterized algorithms for motion estimation and intra prediction, the proposed design can dynamically configure the encoding modes with the design trade-off between power consumption and video quality for various video encoding applications. In addition, the proposed basic unit (BU)-based rate control hardware can maintain a constant and stable bit rate for network video transmission. It achieves real-time H. 264 video encoding on CIF, D1, and HD720@30 frames/s with 7 mW to 25 mW, 27 mW to 162 mW, and 122 mW to 183 mW power dissipation in different quality modes.

• 出版日期2009-12