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.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

bilateral symmetry; human visual system; MRI image; CT image; just noticeable distortion; perceptually lossless compression

PL

symetria dwustronna; obraz MRI; rezonans magnetyczny; obrazowanie metodą rezonansu magnetycznego; obraz CT; tomografia komputerowa; zniekształcenie

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2015
• Tom: Vol. 24
• Strony: 147--154
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Chandrika B. K.

• Department of Electrical and Electronics Engineering, Manipal Institute of Technology, Manipal University, 576104, India

autor

Aparna P.

• Department of Electronics and Communication Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, India

autor

Sumam D. S.

• Department of Electronics and Communication Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, India

Bibliografia

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