Region of interest in JPEG

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F22%3APU144442" target="_blank" >RIV/00216305:26230/22:PU144442 - isvavai.cz</a>

Result on the web

<a href="https://www.fit.vut.cz/research/publication/12736/" target="_blank" >https://www.fit.vut.cz/research/publication/12736/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24132/CSRN.3201.1" target="_blank" >10.24132/CSRN.3201.1</a>

Result language

angličtina

Original language name

Region of interest in JPEG

Original language description

This paper describes three methods to encode a region of interest (ROI) of arbitrary shape in the JPEG standard. The ROI is part of the image encoded with higher quality than the rest of the image. Two of the described methods are based on thresholding of DCT coefficients. The last method is based on the early termination of the entropy coding phase. All methods are fully compatible with existing JPEG decoders. Using ROI, it is possible to reduce the bitrate to only a fraction of the original value. The results in this paper show that thresholding of original DCT coefficients provides superior performance in terms of the PSNR-B index.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

WSCG 2022 Proceedings

ISBN

978-80-86943-64-0

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

1-4

Publisher name

Union Agency

Place of publication

Plzeň

Event location

Plzeň

Event date

May 17, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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