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Title: Rate-controlled, region-of-interest-based image coding with JPEG-LS
Authors: Edirisinghe, Eran A.
Bedi, Satish
Issue Date: 2003
Publisher: © 2003 SPIE
Citation: EDIRISINGHE, E.A. and BEDI, S., 2003. Rate-controlled, region-of-interest-based image coding with JPEG-LS. IN: Vasudev, B....et al.(eds.), Image and Video Communications and Processing 2003, Proceedings of SPIE–IS&T Electronic Imaging, 5022, 643, 9pp.
Abstract: Since the standardization of JPEG-LS, several improvements and variations to the original algorithms have been proposed. In this paper we propose a Region of Interest (ROT) based coding strategy for JPEG-LS that has the additional ability of providing effective rate controlled image compression. Given a single ROT or multiple ROTs of a fixed or arbitrary shape, the scheme we propose is able to compress a given image by a required ratio, whilst maintaining the subjective image of the ROTs at either lossless or at a quality specified by a Target Compression Ratio ( TCR) of the ROT. We provide experimental results to compare the performance of the proposed rate-control algorithm with the state of the art near lossless rate control schemes. We show that the proposed scheme is able to achieve much higher TCRs, at increased accuracy and better objective image quality, using a less computationally intensive rate control algorithm. Finally we demonstrate that the proposed ROT based coding scheme can be used to extend the applicability of JPEG-LS to medical and satellite imaging applications and provides a useful alternative to JPEG-2000 based ROT coding.
Description: Copyright 2003 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. This paper can also be found at: http://dx.doi.org/10.1117/12.476372
Version: Published
DOI: 10.1117/12.476372
URI: https://dspace.lboro.ac.uk/2134/6512
Appears in Collections:Conference Papers and Presentations (Computer Science)

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