CLC number: TN919.8
On-line Access:
Received: 2008-09-13
Revision Accepted: 2009-02-23
Crosschecked: 2009-06-10
Cited: 6
Clicked: 6351
Han-jie MA, Fan ZHOU, Rong-xin JIANG, Yao-wu CHEN. A network-aware error-resilient method using prioritized intra refresh for wireless video communications[J]. Journal of Zhejiang University Science A, 2009, 10(8): 1169-1176.
@article{title="A network-aware error-resilient method using prioritized intra refresh for wireless video communications",
author="Han-jie MA, Fan ZHOU, Rong-xin JIANG, Yao-wu CHEN",
journal="Journal of Zhejiang University Science A",
volume="10",
number="8",
pages="1169-1176",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820660"
}
%0 Journal Article
%T A network-aware error-resilient method using prioritized intra refresh for wireless video communications
%A Han-jie MA
%A Fan ZHOU
%A Rong-xin JIANG
%A Yao-wu CHEN
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 8
%P 1169-1176
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820660
TY - JOUR
T1 - A network-aware error-resilient method using prioritized intra refresh for wireless video communications
A1 - Han-jie MA
A1 - Fan ZHOU
A1 - Rong-xin JIANG
A1 - Yao-wu CHEN
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 8
SP - 1169
EP - 1176
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820660
Abstract: We propose a novel prioritized intra refresh method for the wireless video communication. The proposed method considers the characteristics of the human visual system, the error-sensitivity of the bitstream, and the state of the time-varying wireless channel jointly. An expected perceptual distortion model was used to adjust the intra refresh rate adaptively. This model consists of the perceptual weight map based on an attention model, the bit error probability map based on bitstream size, and the dynamic channel state information (CSI). Experimental results indicate that, compared with other intra refresh methods that consider only the content of the video or the CSI, the proposed method improves the average peak signal-to-noise ratio (PSNR) of the whole frame by about 0.5 dB, and improves the average PSNR of the attention-area by about 0.8 dB.
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