Motion Vector Based Error Concealment Algorithms for Video Decoder

Mei-Juan CHEN; Che-Shing CHEN; Ching-Ting HSU

Motion Vector Based Error Concealment Algorithms for Video Decoder

Mei-Juan CHEN, Che-Shing CHEN, Ching-Ting HSU

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Compressed video bitstream is sensitive to errors that may degrade the reconstructed images severely even the bit error rate is small. One approach to combat the impact of error is error concealment at the decoder without increasing the bit rate and changing the encoder. We propose motion vector based error concealment algorithms to recover the motion vector per pixel instead of that per block according to the relation of neighboring motion vectors. The displacement per pixel can be estimated more accurately by using the tendency of neighboring motion vectors. Besides, we use not only the relation among motion vectors, but also the pixels. The pixels of the error block are divided into different parts according to their consistency with neighboring blocks and the displacement at each pixel of these parts is interpolated by relative motion vectors. From simulation results, the proposed motion vector based methods provide better reconstruction quality for damaged images than other methods.

Publication: IEICE TRANSACTIONS on Communications Vol.E87-B No.6 pp.1648-1659

Publication Date: 2004/06/01

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Type of Manuscript: PAPER

Category: Multimedia Systems

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Mei-Juan CHEN, Che-Shing CHEN, Ching-Ting HSU, "Motion Vector Based Error Concealment Algorithms for Video Decoder" in IEICE TRANSACTIONS on Communications, vol. E87-B, no. 6, pp. 1648-1659, June 2004, doi: .
Abstract: Compressed video bitstream is sensitive to errors that may degrade the reconstructed images severely even the bit error rate is small. One approach to combat the impact of error is error concealment at the decoder without increasing the bit rate and changing the encoder. We propose motion vector based error concealment algorithms to recover the motion vector per pixel instead of that per block according to the relation of neighboring motion vectors. The displacement per pixel can be estimated more accurately by using the tendency of neighboring motion vectors. Besides, we use not only the relation among motion vectors, but also the pixels. The pixels of the error block are divided into different parts according to their consistency with neighboring blocks and the displacement at each pixel of these parts is interpolated by relative motion vectors. From simulation results, the proposed motion vector based methods provide better reconstruction quality for damaged images than other methods.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e87-b_6_1648/_p

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@ARTICLE{e87-b_6_1648,
author={Mei-Juan CHEN, Che-Shing CHEN, Ching-Ting HSU, },
journal={IEICE TRANSACTIONS on Communications},
title={Motion Vector Based Error Concealment Algorithms for Video Decoder},
year={2004},
volume={E87-B},
number={6},
pages={1648-1659},
abstract={Compressed video bitstream is sensitive to errors that may degrade the reconstructed images severely even the bit error rate is small. One approach to combat the impact of error is error concealment at the decoder without increasing the bit rate and changing the encoder. We propose motion vector based error concealment algorithms to recover the motion vector per pixel instead of that per block according to the relation of neighboring motion vectors. The displacement per pixel can be estimated more accurately by using the tendency of neighboring motion vectors. Besides, we use not only the relation among motion vectors, but also the pixels. The pixels of the error block are divided into different parts according to their consistency with neighboring blocks and the displacement at each pixel of these parts is interpolated by relative motion vectors. From simulation results, the proposed motion vector based methods provide better reconstruction quality for damaged images than other methods.},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - Motion Vector Based Error Concealment Algorithms for Video Decoder
T2 - IEICE TRANSACTIONS on Communications
SP - 1648
EP - 1659
AU - Mei-Juan CHEN
AU - Che-Shing CHEN
AU - Ching-Ting HSU
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2004
AB - Compressed video bitstream is sensitive to errors that may degrade the reconstructed images severely even the bit error rate is small. One approach to combat the impact of error is error concealment at the decoder without increasing the bit rate and changing the encoder. We propose motion vector based error concealment algorithms to recover the motion vector per pixel instead of that per block according to the relation of neighboring motion vectors. The displacement per pixel can be estimated more accurately by using the tendency of neighboring motion vectors. Besides, we use not only the relation among motion vectors, but also the pixels. The pixels of the error block are divided into different parts according to their consistency with neighboring blocks and the displacement at each pixel of these parts is interpolated by relative motion vectors. From simulation results, the proposed motion vector based methods provide better reconstruction quality for damaged images than other methods.
ER -