Title :
Autonomous decision making in layered and Reconfigurable Video Coders
Author :
Mastronarde, Nicholas ; Van der Schaar, Mihaela
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA
Abstract :
Layered compression and reconfigurable coding paradigms require coupled encoding decisions among layers or codec components in order to achieve optimal distortion performance under buffer constraints. Moreover, due to the dynamic and time-varying source characteristics, and temporal coupling of encoding decisions through the buffer constraints, both the immediate and long-term rate-distortion impact of encoding decisions must be considered. In many scenarios, however, it may be impractical to make such joint coding decisions. To address this problem, we propose a framework for autonomous decision making in layered and reconfigurable coders, which decouples the decision making processes of the various layers or codec components using a layered Markov decision process.
Keywords :
Markov processes; decision making; encoding; rate distortion theory; video codecs; Markov decision process; autonomous decision making; encoding decisions; joint coding decisions; optimal distortion performance; rate distortion; reconfigurable video coders; temporal coupling; time-varying source characteristics; Centralized control; Codecs; Decision making; Decoding; Distributed control; Encoding; Rate-distortion; Video coding; Video compression; Video sharing;
Conference_Titel :
Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-5825-7
DOI :
10.1109/ACSSC.2009.5469891