posted on 2010-07-16, 10:59authored byS. Thanapirom, W.A.C. Fernando, Eran Edirisinghe
Due to the provision of a more natural representation of a
scene in the form of left and right eye views, a stereoscopic imaging
system provides a more effective method for image/video display. Unfortunately
the vast amount of information that must be transmitted/stored
to represent a stereo image pair/video sequence, has so far hindered its
use in commercial applications. However, by properly exploiting the spatial,
temporal and binocular redundancy, a stereo image pair or a sequence
could be compressed and transmitted through a single monocular
channel’s bandwidth without unduly sacrificing the perceived
stereoscopic image quality. We propose a timely and novel framework to
transmit stereoscopic data efficiently. We propose a timely and novel
framework to transmit stereoscopic data efficiently. We present a new
technique for coding stereo video sequences based on discrete wavelet
transform DWT technology. The proposed technique particularly exploits
zerotree entropy ZTE coding that makes use of the wavelet block
concept to achieve low bit rate stereo video coding. One of the two
image streams, namely, the main stream, is independently coded by a
zerotree video CODEC, while the second stream, namely, the auxiliary
stream, is predicted based on disparity compensation. A zerotree video
CODEC subsequently codes the residual stream. We compare the performance
of the proposed CODEC with a discrete cosine transform
DCT -based, modified MPEG-2 stereo video CODEC. We show that the
proposed CODEC outperforms the benchmark CODEC in coding both
main and auxiliary streams.
History
School
Science
Department
Computer Science
Citation
THANAPIROM, S., FERNANDO, W.A.C. and EDIRISINGHE, E.A., 2005. Zerotree-based stereoscopic video CODEC. Optical Engineering, 44(7), 077004, 11pp.
Copyright 2005 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. This paper can also be found at: http://dx.doi.org/10.1117/1.1951768