Side information generation using adaptive search range for distributed video coding

In this paper, we propose a new side information generation (SIG) method which is applicable to distributed video coding (DVC). The proposed method adaptively changes a search range depending on a confidence level in hierarchical motion estimation (ME) and reconstructs the hole regions using the pro...

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Bibliographic Details
Published in2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing pp. 854 - 857
Main Authors Kyungyeon Min, Seanae Park, Donggyu Sim
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2009
Subjects
Computational complexity
Decoding
DVC
Hierarchical ME
Interpolation
ISO standards
Motion estimation
SIG
Vectors
Video coding
Video equipment
Video surveillance
Wireless sensor networks
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Summary:In this paper, we propose a new side information generation (SIG) method which is applicable to distributed video coding (DVC). The proposed method adaptively changes a search range depending on a confidence level in hierarchical motion estimation (ME) and reconstructs the hole regions using the proposed uni-directional prediction and linear interpolation. In order to improve reliability of the hierarchical ME, ME for each block is performed in descending order of block variance values. Also, in order to alleviate errors from inaccurate motion vector (MV) estimation, search range is adaptively adjusted according to reliability of ME. Experimental results show that the proposed algorithm is better than several conventional methods for DVC. We also found that block artifacts and blur artifacts are significantly diminished by the proposed algorithm.
ISBN:9781424445608
1424445604
ISSN:1555-5798
2154-5952
DOI:10.1109/PACRIM.2009.5291259