Publication Details

Region of interest in JPEG

BAŘINA, D.; KLÍMA, O. Region of interest in JPEG. In WSCG 2022 Proceedings. Computer Science Research Notes. Plzeň: Union Agency, 2022. p. 1-4. ISBN: 978-80-86943-64-0.
Czech title
Oblast zájmu v JPEG
Type
conference paper
Language
English
Authors
Bařina David, Ing., Ph.D. (DCGM)
Klíma Ondřej, Ing., Ph.D. (DCGM)
Keywords

JPEG, region of interest, image compression

Abstract

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.

Published
2022
Pages
1–4
Proceedings
WSCG 2022 Proceedings
Series
Computer Science Research Notes
ISBN
978-80-86943-64-0
Publisher
Union Agency
Place
Plzeň
DOI
10.24132/CSRN.3201.1
EID Scopus
2-s2.0-85139843495
BibTeX 
@inproceedings{BUT177758,
  author="David {Bařina} and Ondřej {Klíma}",
  title="Region of interest in JPEG",
  booktitle="WSCG 2022 Proceedings",
  year="2022",
  series="Computer Science Research Notes",
  pages="1--4",
  publisher="Union Agency",
  address="Plzeň",
  doi="10.24132/CSRN.3201.1",
  isbn="978-80-86943-64-0",
  url="https://www.fit.vut.cz/research/publication/12736/"
}
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