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A learned pixel-by-pixel lossless image compression method with 59K parameters and parallel decoding
Date
2023-01-01
Author
Gümüş, Sinem
Kamışlı, Fatih
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper considers lossless image compression and presents a learned compression system that can achieve state-of-the-art lossless compression performance but uses only 59K parameters, which is one or two order of magnitudes less than other learned systems proposed recently in the literature. The explored system is based on a learned pixel-by-pixel lossless image compression method, where each pixel’s probability distribution parameters are obtained by processing the pixel’s causal neighborhood (i.e. previously encoded/decoded pixels) with a simple neural network comprising 59K parameters. This causality causes the decoder to operate sequentially, i.e. the neural network has to be evaluated for each pixel sequentially, which increases decoding time significantly with common GPU software and hardware. To reduce the decoding time, parallel decoding algorithms are proposed and implemented. The obtained lossless image compression system is compared to traditional and learned systems in the literature in terms of compression performance, encoding-decoding times and computational complexity.
Subject Keywords
Artificial neural networks
,
Entropy coding
,
Gaussian mixture model
,
Image compression
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85167513614&origin=inward
https://hdl.handle.net/11511/105007
Journal
Multimedia Tools and Applications
DOI
https://doi.org/10.1007/s11042-023-16270-4
Collections
Department of Electrical and Electronics Engineering, Article
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IEEE
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BibTeX
S. Gümüş and F. Kamışlı, “A learned pixel-by-pixel lossless image compression method with 59K parameters and parallel decoding,”
Multimedia Tools and Applications
, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85167513614&origin=inward.