Efficient scalable DCT-based video coding at low bit rates
Gallant, M.
Kossetini, F.
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC;
This paper appears in: Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Publication Date: 1999
Volume: 3,
On page(s): 782-786 vol.3
Meeting Date: 10/24/1999 - 10/28/1999
Location: Kobe, Japan
ISBN: 0-7803-5467-2
References Cited: 5
INSPEC Accession Number: 6521994
Digital Object Identifier: 10.1109/ICIP.1999.817224
Current Version Published: 2002-08-06
Abstract
It is well-known that flexibility and error resilience are
significantly improved by employing a scalable bit stream. The major
drawback of multi-layered representations within a motion compensated
(MC) discrete cosine transform (DCT) based framework is the increase in
bit rate as compared to a single-layered representation having the same
frequency, spatial and temporal resolution as in the highest layer of
the multi-layered representation. Using rate-distortion (RD)
optimization techniques, we can improve the compression efficiency of
MC-DCT based SNR and spatially scalable video coding framework. We first
show how RD optimization techniques can be applied independently for
each layer. We then extend the framework to consider coding decisions
jointly across layers
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