MRI data compression using a 3-D discrete wavelet transform

IEEE Engineering in Medicine and Biology Magazine - Tập 21 Số 4 - Trang 95-103 - 2002
W. Badawy1, M. Weeks2, Guoqing Zhang3, M. Talley4, M.A. Bayoumi4
1Department of Electrical and Computer Engineering, University of Calgary, Canada
2Department of Computer Science, Georgia State University, USA
3Micron Technology, Inc., USA
4The Center for Advanced Computer Studies, University of Louisiana, Lafayette, USA

Tóm tắt

A low-power system that can be used to compress MRI data and for other medical applications is described. The system uses a low power 3-D DWT processor based on a centralized control unit architecture. The simulation results show the efficiency of the wavelet processor. The prototype processor consumes 0.5 W with total delay of 91.65 ns. The processor operates at a maximum frequency of 272 MHz. The prototype processor uses 16-bit adder, 16-bit Booth multiplier, and 1 kB cache with a maximum of 64-bit data bandwidth. Lower power has been achieved by using low-power building blocks and the minimal number of computational units with high throughput.

Từ khóa

#Discrete wavelet transforms #Magnetic resonance imaging #Data compression #Prototypes #Medical services #Biomedical equipment #Centralized control #Medical simulation #Delay #Frequency

Tài liệu tham khảo

10.1109/VLSISP.1994.574763

badawy, 1998, an enhanced low-power pipelined multiplier-accumulator for dsp applications, 7th NASA Symp VLSI, 86

10.1109/92.238416

ozer, 1995, new compression codec promises rates close to mpeg, CD-ROM Professional, 24

wang, 1995, three-dimensional medical image compression using a wavelet transform with parallel computing, SPIE Imaging Physics, 2431, 16

10.1016/0730-725X(94)91243-P

10.1109/ASAP.1992.218570

pratt, 1996, volume compression of mri data using zerotrees of wavelet coefficients, Proc Wavelet Applications Signal Image Processing IV, 752, 10.1117/12.255283

gibbs, 1996, making wavelets, Sci Amer, 274, 137

10.1109/VLSISP.1996.558369

hickman, 1997, web acceleration, PC Magazine, 10

weste, 1993, Principals of CMOS VLSI Design

10.1117/12.162055