Medical image compression using 3-D Hartley transform |
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| Authors: | Shyam Sunder R Eswaran C Sriraam N |
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| Affiliation: | Faculty of Information Technology, Center for Multimedia Computing, Multimedia University, Cyberjaya, Malaysia. shyam.sunder@mmu.edu.my |
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| Abstract: | In this paper, 3-D discrete Hartley transform is applied for the compression of two medical modalities, namely, magnetic resonance images and X-ray angiograms and the performance results are compared with those of 3-D discrete cosine and Fourier transforms using the parameters such as PSNR and bit rate. It is shown that the 3-D discrete Hartley transform is better than the other two transforms for magnetic resonance brain images whereas for the X-ray angiograms, the 3-D discrete cosine transform is found to be superior. |
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| Keywords: | 3-D discrete Hartley transform 3-D discrete cosine transform 3-D discrete Fourier transform Run length encoding Huffman encoding DICOM |
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