Performance Results: Software vs. FPGA Hardware

A Software - Floating point - 450 MHz Pentium : ~ 240 s

B Software - Floating point - 1 GHz Dual Pentium : ~ 94 s

C Software - Fixed point - 450 MHz Pentium : ~ 50 s

D Software - Fixed point - 1 GHz Dual Pentium : ~ 28 s

E Hardware - 50 MHz : ~ 5.4 s

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A B C D E

Parameters: 1024 projections

1024 samples per projection

512*512 pixels image

9-bit sinogram data

3-bit interpolation factor