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Presentation 0000-00-00 00:00
A Study on Adaptive Spatial-Temporal Error Concealment method for Wavelet based Video Coding in Wireless Networks
Sunmi Kim (Hokkaido Univ.), Hirokazu Tanaka (Toshiba Corp.), Takahiro Ogawa, Miki Haseyama (Hokkaido Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we present an adaptive spatial-temporal error concealment method for the wavelet based video coding in wireless networks. A three-dimensional discrete wavelet transform (3-D DWT) is performed 2-D spatial DWT coding and temporal DWT coding on a group of pictures (GOP). The transmission of compressed video suffers from errors such as packet losses that not only corrupt frame but also propagate successive frames. The proposed adaptive spatial-temporal error concealment method consists of spatial EC and temporal EC to overcome error propagation problems. The proposed method is concealing erroneous coefficients of the spatiotemporal low-frequency subband by their duplication information, and uses the proposed adaptive spatial-temporal concealment method to recover errors for entire video sequence. The performance of proposed method was evaluated with wireless packet transmission networks. Experimental results show the proposed method can serve robust and stable performance in error-prone environments.
Keyword (in Japanese) (See Japanese page) 
(in English) Wavelet video coding / Error-resilient / Error Concealment / Dispersive Grouping / Weighted interpolation / / /  
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Conference Information
Committee IEICE-ITS IEICE-IE AIT HI ME  
Conference Date 2011-02-21 - 2011-02-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University 
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To IEICE-IE 
Conference Code 2011-02-ITS-IE-AIT-HI-ME 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Adaptive Spatial-Temporal Error Concealment method for Wavelet based Video Coding in Wireless Networks 
Sub Title (in English)  
Keyword(1) Wavelet video coding  
Keyword(2) Error-resilient  
Keyword(3) Error Concealment  
Keyword(4) Dispersive Grouping  
Keyword(5) Weighted interpolation  
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1st Author's Name Sunmi Kim  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Hirokazu Tanaka  
2nd Author's Affiliation Toshiba Corporation (Toshiba Corp.)
3rd Author's Name Takahiro Ogawa  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Miki Haseyama  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 0000-00-00 00:00:00 
Presentation Time minutes 
Registration for IEICE-IE 
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Volume (vol) vol.35 
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