TY - GEN
T1 - Compression of fMRI and ultrasound images using 4D SPIHT
AU - Lalgudi, Hariharan G.
AU - Bilgin, Ali
AU - Marcellin, Michael W.
AU - Nadar, Mariappan S.
PY - 2005
Y1 - 2005
N2 - There is increased use of medical imaging techniques that produce four dimensional (4D) datasets such as fMRI and 3D dynamic echocardiograms. These datasets consume even larger amounts of resources for transmission or storage compared to the traditional 2D data sets. In this paper, we extend the zero tree algorithms, EZW (Embedded Zero tree coding of Wavelet coefficients) and SPIHT (Set Partitioning in Hierarchichal Trees) to 4D to compress the 4D datasets more efficiently. Integer to integer wavelet transforms scaled by appropriate subband energy weights are used to get lossy to lossless compression. We also investigate the effects of lossy compression on the end result of fMRI analysis.
AB - There is increased use of medical imaging techniques that produce four dimensional (4D) datasets such as fMRI and 3D dynamic echocardiograms. These datasets consume even larger amounts of resources for transmission or storage compared to the traditional 2D data sets. In this paper, we extend the zero tree algorithms, EZW (Embedded Zero tree coding of Wavelet coefficients) and SPIHT (Set Partitioning in Hierarchichal Trees) to 4D to compress the 4D datasets more efficiently. Integer to integer wavelet transforms scaled by appropriate subband energy weights are used to get lossy to lossless compression. We also investigate the effects of lossy compression on the end result of fMRI analysis.
UR - http://www.scopus.com/inward/record.url?scp=33749592431&partnerID=8YFLogxK
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U2 - 10.1109/ICIP.2005.1530163
DO - 10.1109/ICIP.2005.1530163
M3 - Conference contribution
AN - SCOPUS:33749592431
SN - 0780391349
SN - 9780780391345
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 746
EP - 749
BT - IEEE International Conference on Image Processing 2005, ICIP 2005
T2 - IEEE International Conference on Image Processing 2005, ICIP 2005
Y2 - 11 September 2005 through 14 September 2005
ER -