Tuning of JPEG quantization matrices for x-ray images

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


A variation is considered to the way in which the JPEG standard lossy image compression technique is applied, which allows different DCT block coding characteristics to be chosen for sets of blocks. This allows an appropriate level of fidelity to be achieved in the reconstructed image at particular locations, rather than merely establishing a fidelity bound. Texture information derived from the DCT coefficient values is used to distinguish block classes for which tuned quantization matrices are provided. Effectiveness of the technique is assessed for a set of standard NIH x-ray images.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Number of pages7
ISBN (Print)0819424420
Publication statusPublished - 7 May 1997
Externally publishedYes
EventMedical Imaging 1997: Image Display - Newport Beach, CA, USA
Duration: 23 Feb 199725 Feb 1997

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceMedical Imaging 1997: Image Display
CityNewport Beach, CA, USA


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