- Tytuł:
- Analysis and comparison of symmetry based lossless and perceptually lossless algorithms for volumetric compression of medical images
- Autorzy:
-
Chandrika, B. K.
Aparna, P.
Sumam, D. S. - Powiązania:
- https://bibliotekanauki.pl/articles/333936.pdf
- Data publikacji:
- 2015
- Wydawca:
- Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
- Tematy:
-
bilateral symmetry
human visual system
MRI image
CT image
just noticeable distortion
perceptually lossless compression
symetria dwustronna
obraz MRI
rezonans magnetyczny
obrazowanie metodą rezonansu magnetycznego
obraz CT
tomografia komputerowa
zniekształcenie - Opis:
- Modern medical imaging techniques produce huge volume of data from stack of images generated in a single examination. To compress them several volumetric compression techniques have been proposed. Performance of these compression schemes can be improved further by considering the anatomical symmetry present in medical images and incorporating the characteristics of human visual system. In this paper a volumetric medical image compression algorithm is presented in which perceptual model is integrated with a symmetry based lossless scheme. Symmetry based lossless and perceptually lossless algorithms were evaluated on a set of three dimensional medical images. Experimental results show that symmetry based perceptually lossless coder gives an average of 8.47% improvement in bit per pixel without any perceivable degradation in visual quality against the lossless scheme.
- Źródło:
-
Journal of Medical Informatics & Technologies; 2015, 24; 147-154
1642-6037 - Pojawia się w:
- Journal of Medical Informatics & Technologies
- Dostawca treści:
- Biblioteka Nauki
Artykuł