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Graph-based transform with weighted self-loops for predictive transform coding based on template matching
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Roy, Debaleena, Guha, Tanaya and Sanchez Silva, Victor (2019) Graph-based transform with weighted self-loops for predictive transform coding based on template matching. In: Data Compression Conference (DCC 2019), Snowbird, UT, 26-29 Mar 2019. Published in: 2019 Data Compression Conference (DCC) pp. 329-338. ISBN 9781728106588 . ISSN 1068-0314 . doi:10.1109/DCC.2019.00041
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Official URL: https://doi.org/10.1109/DCC.2019.00041
Abstract
This paper introduces the GBT-L, a novel class of Graph-based Transform within the con- text of block-based predictive transform coding. The GBT-L is constructed using a 2D graph with unit edge weights and weighted self-loops in every vertex. The weighted self- loops are selected based on the residual values to be transformed. To avoid signalling any additional information required to compute the inverse GBT-L, we also introduce a coding framework that uses a template-based strategy to predict residual blocks in the pixel and residual domains. Evaluation results on several video frames and medical images, in terms of the percentage of preserved energy and mean square error, show that the GBT-L can outperform the DST, DCT and the Graph-based Separable Transform
| Item Type: | Conference Item (Paper) | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TR Photography | ||||||
| Divisions: | Faculty of Science > Computer Science | ||||||
| Library of Congress Subject Headings (LCSH): | Data compression (Computer science), Image compression, Video compression | ||||||
| Journal or Publication Title: | 2019 Data Compression Conference (DCC) | ||||||
| Publisher: | IEEE | ||||||
| ISBN: | 9781728106588 | ||||||
| ISSN: | 1068-0314 | ||||||
| Official Date: | 13 May 2019 | ||||||
| Dates: |
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| Date of first compliant deposit: | 23 January 2019 | ||||||
| Page Range: | pp. 329-338 | ||||||
| DOI: | 10.1109/DCC.2019.00041 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Conference Paper Type: | Paper | ||||||
| Title of Event: | Data Compression Conference (DCC 2019) | ||||||
| Type of Event: | Conference | ||||||
| Location of Event: | Snowbird, UT | ||||||
| Date(s) of Event: | 26-29 Mar 2019 | ||||||
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