Publication result detail

Region of interest in JPEG

BAŘINA, D.; KLÍMA, O.

Original Title

Region of interest in JPEG

English Title

Region of interest in JPEG

Type

Paper in proceedings (conference paper)

Original 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 methodsare based on thresholding of DCT coefficients. The last method is based on the early termination of the entropycoding phase. All methods are fully compatible with existing JPEG decoders. Using ROI, it is possible to reducethe bitrate to only a fraction of the original value. The results in this paper show that thresholding of original DCTcoefficients provides superior performance in terms of the PSNR-B index.

English 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 methodsare based on thresholding of DCT coefficients. The last method is based on the early termination of the entropycoding phase. All methods are fully compatible with existing JPEG decoders. Using ROI, it is possible to reducethe bitrate to only a fraction of the original value. The results in this paper show that thresholding of original DCTcoefficients provides superior performance in terms of the PSNR-B index.

Keywords

JPEG, region of interest, image compression

Key words in English

JPEG, region of interest, image compression

Authors

BAŘINA, D.; KLÍMA, O.

RIV year

2023

Released

31.05.2022

Publisher

Union Agency

Location

Plzeň

ISBN

978-80-86943-64-0

Book

WSCG 2022 Proceedings

Edition

Computer Science Research Notes

Pages from

1

Pages to

4

Pages count

4

URL

https://www.fit.vut.cz/research/publication/12736/

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/"
}

Documents

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