Context-Aware Image Compression.

Context-Aware Image Compression.

We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this coding operation, the data can be downsampled at a low...

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Main Authors: Jacky C K Chan, Ata Mahjoubfar, Claire L Chen, Bahram Jalali
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4930214?pdf=render
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spelling doaj-41899e0726b14108a81802c0ced750c82020-11-25T00:08:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01117e015820110.1371/journal.pone.0158201Context-Aware Image Compression.Jacky C K ChanAta MahjoubfarClaire L ChenBahram JalaliWe describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this coding operation, the data can be downsampled at a lower rate than without it. In contrast to previous implementation of the warped stretch compression, here the decoding can be performed without the need of phase recovery. We present rate-distortion analysis and show improvement in PSNR compared to compression via uniform downsampling.http://europepmc.org/articles/PMC4930214?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Jacky C K Chan
Ata Mahjoubfar
Claire L Chen
Bahram Jalali
spellingShingle Jacky C K Chan
Ata Mahjoubfar
Claire L Chen
Bahram Jalali
Context-Aware Image Compression.
PLoS ONE
author_facet Jacky C K Chan
Ata Mahjoubfar
Claire L Chen
Bahram Jalali
author_sort Jacky C K Chan
title Context-Aware Image Compression.
title_short Context-Aware Image Compression.
title_full Context-Aware Image Compression.
title_fullStr Context-Aware Image Compression.
title_full_unstemmed Context-Aware Image Compression.
title_sort context-aware image compression.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2016-01-01
description We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this coding operation, the data can be downsampled at a lower rate than without it. In contrast to previous implementation of the warped stretch compression, here the decoding can be performed without the need of phase recovery. We present rate-distortion analysis and show improvement in PSNR compared to compression via uniform downsampling.
url http://europepmc.org/articles/PMC4930214?pdf=render
work_keys_str_mv AT jackyckchan contextawareimagecompression
AT atamahjoubfar contextawareimagecompression
AT clairelchen contextawareimagecompression
AT bahramjalali contextawareimagecompression
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