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MRI data compression using a 3-D discrete wavelet transform

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5 Author(s)
Badawy, W. ; Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada ; Weeks, M. ; Guoqing Zhang ; Talley, M.
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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.

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Engineering in Medicine and Biology Magazine, IEEE  (Volume:21 ,  Issue: 4 )