NDLI: Dual frame video coding with pulsed quality and a lookahead window

Content Provider	IEEE Xplore Digital Library
Author	Tiwari, M. Cosman, P.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA (Tiwari, M.; Cosman, P.)
Abstract	In dual frame video coding, one short-term reference frame and one long-term reference frame are available for motion compensation. In prior research, it was shown that overall video quality was improved by allocating bits unevenly among frames so as to periodically create a high-quality frame that could serve as the long-term reference frame for some time. We extend this work to a cognitive radio scenario where pulses of extra bandwidth can be rented by the second, but rental agreements can be cancelled on short notice if the legacy user of that spectrum returns. With a scalable video coder, this pulse of extra bandwidth can be used to improve the quality of the current frame being encoded, or of the past long term frame, or can be spent on future frames if the encoder has access to them in advance. We compare these various uses to explore the advantages of allocating some of the available bandwidth to past or future frames
Starting Page	372
Ending Page	381
File Size	269150
Page Count	10
File Format	PDF
ISBN	0769525458
ISSN	10680314
DOI	10.1109/DCC.2006.28
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Bandwidth Motion compensation Cognitive radio Transform coding Drives Video codecs Streaming media MPEG 4 Standard Automatic voltage control
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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