Publication: Lossless compression for 3-D MRI data using reversible KLT
Issued Date
2008-09-22
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2-s2.0-51849165094
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Mahidol University
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SCOPUS
Bibliographic Citation
ICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings. (2008), 1560-1564
Suggested Citation
Yodchanan Wongsawat Lossless compression for 3-D MRI data using reversible KLT. ICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings. (2008), 1560-1564. doi:10.1109/ICALIP.2008.4590113 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/19135
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Title
Lossless compression for 3-D MRI data using reversible KLT
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Abstract
This paper presents a simple but efficient framework for losslessly compressing a sequence of magnetic resonance imaging (MRI) data which can be considered as 3-dimensional signals. All MRI slices are first decorrelated using the reversible Karhunen loeve transform (KLT) resulting in KLT slices which are meaningful for exploiting their spatial correlation. Spatial redundancy of each KLT slice is exploited by simply applying any lossless image coder. To further reduce computational complexity for calculating the KLT matrices when the number of slices is high, sub-optimal approximation of the reversible KLT is employed instead of ordinary reversible KLT Simulation results show that compressing MRI data using our proposed coder improves coding performance by over 40%. © 2008 IEEE.