Title :
On the suitability of current x264 rate controller algorithms for high definition video conferencing
Author :
Javadtalab, Abbas ; Omidyeganeh, Mona ; Shirmohammandi, Shervin ; Hosseini, Mojtaba
Author_Institution :
Distrib. & Collaborative Virtual Environ. Res. Lab., Univ. of Ottawa, Ottawa, ON, Canada
Abstract :
In this paper we analyze current H.264 rate distortion algorithms (RD), specifically those developed in the x264 codec which is an open source and high performance H.264/AVC encoder, and evaluate their suitability for high definition video conferencing (HDVC). Moreover, we report the current shortcomings of these methods and highlight issues to be addressed for future research, as well as the requirements of an RD for HDVC. Each method is analyzed from aspects such as network bandwidth, frame size, PSNR and SSIM measurements. In addition to the objective tests, the results are evaluated by human observers in order to get the correct perceptive of the performance of each method.
Keywords :
audio coding; high definition video; teleconferencing; video coding; video communication; H.264 rate distortion algorithms; HDVC; PSNR; SSIM measurement; high definition video conferencing; high performance H.264-AVC encoder; human observer; network bandwidth; rate controller algorithm; video codec; Bandwidth; Bit rate; Decoding; High definition video; Internet; PSNR; Streaming media; Average Bit rate; High Definition Video; Quality of Service; Rate controller; Video Conferencing;
Conference_Titel :
Artificial Intelligence and Signal Processing (AISP), 2011 International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4244-9833-8
DOI :
10.1109/AISP.2011.5960987
