DocumentCode :
2354229
Title :
H.264 hierarchical P coding in the context of ultra-low delay, low complexity applications
Author :
Hong, Danny ; Horowitz, Michael ; Eleftheriadis, Alexandros ; Wiegand, Thomas
fYear :
2010
fDate :
8-10 Dec. 2010
Firstpage :
146
Lastpage :
149
Abstract :
Despite the attention that hierarchical B picture coding has received, little attention has been given to a related technique called hierarchical P picture coding. P picture only coding without reverse prediction is necessary in constrained bit rate applications that require ultra-low delay and/or low complexity, such as videoconferencing. Such systems, however, have been using the traditional IPPP picture coding structure almost exclusively. In this paper, we investigate the use of hierarchical P coding vs. traditional IPPP coding and demonstrate that it has significant advantages which have not yet been well documented or understood. From a pure coding efficiency point of view, we show that for encoders configured to use ultra-low delay and low complexity coding tools, hierarchical P coding achieves an average advantage of 7.86% BD-rate and 0.34 dB BD-SNR.
Keywords :
image coding; H.264 hierarchical P coding; IPPP picture coding structure; coding efficiency; encoder; hierarchical B picture coding; low complexity coding tool; ultra-low delay coding tool; H.264; hierarchical P coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Picture Coding Symposium (PCS), 2010
Conference_Location :
Nagoya
Print_ISBN :
978-1-4244-7134-8
Type :
conf
DOI :
10.1109/PCS.2010.5702445
Filename :
5702445
Link To Document :
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