RATE CONTROL ALGORITHM FOR SCALABLE VIDEO ENCODING WITH DISPOSABLE P-FRAMES

Systems and methods of performing rate control in scalable video encoders that can be used to provide videoconferencing, announcements, and live video streaming to multiple participant devices having diverse bandwidths, resolutions, and/or other device characteristics. The systems and methods can ac...

Full description

Saved in:
Bibliographic Details
Main Authors PARK SANGSEOK, YANG KYEONG HO
Format Patent
LanguageEnglish
Published 25.12.2014
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online AccessGet full text

Cover

More Information
Summary:Systems and methods of performing rate control in scalable video encoders that can be used to provide videoconferencing, announcements, and live video streaming to multiple participant devices having diverse bandwidths, resolutions, and/or other device characteristics. The systems and methods can accommodate different target bit rates of the multiple participant devices by operating on scalable video bitstreams in a multi-layer video format, including a base layer having one or more reference video frames, and an enhancement layer having one or more disposable non-reference, predictive video frames. By adjusting the number of disposable non-reference, predictive video frames in the enhancement layer, as well as quantization parameters for the respective base and enhancement layers, the disclosed systems and methods can accommodate the different target bit rates for the respective participant devices, while enhancing the spatial and/or temporal qualities of the base and enhancement layers in the respective video bitstreams.
Bibliography:Application Number: US201314087264