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Technical Program
Paper Detail
| Paper: | TA-P2.9 |
| Session: | H.264 Video Coding - II |
| Time: | Tuesday, October 10, 09:40 - 12:20 |
| Presentation: |
Poster
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| Title: |
METHODS TO IMPROVE CODING EFFICIENCY OF SP FRAMES |
| Authors: |
Wai-tian Tan; Hewlett-Packard Laboratories | | | | | Bo Shen; Hewlett-Packard Laboratories | | |
| Abstract: |
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. |
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