基于水印的视频误码掩盖方法

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A novel method for video error concealment based on watermark

YANG Fu-zheng(1);CHANG Yi-lin(1);WANG Xin-dai(1);WANG Jing(2)

(1) State Key Lab. of Integrated Service Networks, Xidian Uni v., Xi′an 710071， China
(2) HuaWei Technology Limited Cooperation, Shenzhen 518057， China

Received:1900-01-01 Revised:1900-01-01 Online:2005-02-20 Published:2005-02-20

Abstract

Abstract: A novel method for video erro
r concealment based on watermark is proposed. By utilizing the feature of digita
l watermark, the information on motion vectors is hidden in DCT coefficients at
the video coder. Then, error detection and error concealment are performed using
motion vector information extracted from DCT coefficients at the video decoder.
Simulation results demonstrate that the accuracy of video error detection is im
proved significantly by our method, and the average PSNR of the reconstructed vi
deo is 2～3dB higher than that of other existing techniques under the environm
ent of an error bit rate less than 10^-3.

Key words: video coding, digital watermark, error detection, error concealment

CLC Number:

TN919.8

YANG Fu-zheng(1);CHANG Yi-lin(1);WANG Xin-dai(1);WANG Jing(2).

A novel method for video error concealment based on watermark

[J].J4, 2005, 32(1): 16-20.

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A novel method for video error concealment based on watermark

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