ICIP 2006, Atlanta, GA
 

Slide Show

Atlanta Conv. & Vis. Bureau

 

Technical Program

Paper Detail

Paper:TA-P2.9
Session:H.264 Video Coding - II
Time:Tuesday, October 10, 09:40 - 12:20
Presentation: Poster
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.