Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/15151
Title: Region-Based Guaranteed Image Quality in JPEG2000
Contributor(s): Trenschel, Tobias M (author); Bretschneider, Timo R (author); Leedham, Graham  (author)
Publication Date: 2003
DOI: 10.1109/ICICS.2003.1292495
Handle Link: https://hdl.handle.net/1959.11/15151
Abstract: This paper describes a spatially variant method that optimises the compression rate within a given image dynamically depending on the application specific requirements and the actual image content. The concept utilises the JPEG2000 standard, however, a generalised region-of-interest (ROI) map is used in this paper together with a different post-compression rate distortion optimisation. The generalised ROI map comprises a multi-level priority scheme as well as continuously adjustable qualities for each individual region to reflect the application specific requirements for a particular image. The key point is that these pre-defined quality constraints are always met for each individual region, thus making the approach suitable for data with inherent reliability requirements. The implementation of the proposed system is transparent and concerns only the encoder side while any standard JPEG2000 decoder can be used for decompression. Results have shown that for the utilised imagery, i.e. satellite and medical images, compression rate improvements of up to 32% in comparison to the JPEG2000 compressor fulfilling the same quality needs are achievable.
Publication Type: Conference Publication
Conference Details: ICICS-PCM 2003: Joint Conference of the 4th International Conference on Information, Communications & Signal Processing and 4th Pacific-Rim Conference on Multimedia, Singapore, 15th - 18th December, 2003
Source of Publication: Proceedings of the Joint Conference of the Fourth International Conference on Information, Communications & Signal Processing and Fourth Pacific-Rim Conference on Multimedia (ICICS-PCM 2003), v.1, p. 464-468
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Place of Publication: Los Alamitos, United States of America
Fields of Research (FoR) 2008: 080106 Image Processing
080109 Pattern Recognition and Data Mining
080104 Computer Vision
Socio-Economic Objective (SEO) 2008: 810107 National Security
810199 Defence not elsewhere classified
890299 Computer Software and Services not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Appears in Collections:Conference Publication

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