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ICIP
2006
IEEE

Methods to Improve Coding Efficiency of SP Frames

14 years 5 months ago
Methods to Improve Coding Efficiency of SP Frames
SP-frame is a new picture type supported by H.264, and supports functions such as rate-switching and random-access. In this paper, we investigate several complementary methods to improve the coding efficiency of SP-frames. We show that by appropriately choosing reference pictures, the size of secondary SP frames can be reduced by up to 40% and 2% for random-access and rate-switching, respectively. We also demonstrate that a simple rule exists that allows the joint selection of the two quantization parameters associated with SP frames to minimize "requantization" error. Results shows 0.1 dB PSNR improvement over comparable choices.
Wai-tian Tan, Bo Shen
Added 22 Oct 2009
Updated 22 Oct 2009
Type Conference
Year 2006
Where ICIP
Authors Wai-tian Tan, Bo Shen
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