Comparison of the astronomical and multimedia image quality criteria

Elena Anisimova; Petr Páta; Karel Fliegel; Miloš Klíma

doi:10.1117/12.923586

30 April 2012 Comparison of the astronomical and multimedia image quality criteria

Elena Anisimova, Petr Páta, Karel Fliegel, Miloš Klíma

Proceedings Volume 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II; 843604 (2012) https://doi.org/10.1117/12.923586
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

This paper deals with the criteria definition of image quality in astronomy and their comparison with common multimedia approaches. Astronomical images have typical specific properties - high grayscale bit depth, size, high noise occurrence, sensitivity to point spread function deformation and special processing algorithms. They belong to the class of scientific images as well as medical or similar. Their processing and compression is quite different from the classical approach of multimedia image processing. The new compression algorithm based on JPEG2000 is selected as a distortion source in this paper. Selected image quality criteria (multimedia and optimized for astronomical images) are tested on the set of images from the DEIMOS image database with miscellaneous level of the thermally generated CCD noise. The deformation of the point spread function (PSF) is also measured for chosen compression approach.

Citation Download Citation

Elena Anisimova, Petr Páta, Karel Fliegel, and Miloš Klíma "Comparison of the astronomical and multimedia image quality criteria", Proc. SPIE 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II, 843604 (30 April 2012); https://doi.org/10.1117/12.923586

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