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Table 3 Most relevant results of the retinal vessel tree extraction algorithm implementation on the different devices

From: Performance analysis of massively parallel embedded hardware architectures for retinal image processing

  Intel Core i7 940 SCAMP-3 Spartan-3 Am2045
Window size (px) - 128 × 128 144 × 160 -
Processors (used/available) 4/4 16,384/16,384 90/90 125/360
Working frequency (MHz) 2930 1.25 53 333
Window execution time (ms) - 6.55 66.1 -
Required windows 1 30 20 1
Computation time (s) 13.6 0.193 1.323 0.008
Total execution time with I/O (s) 13.7 0.230 1.349 0.0087
Speed-up 59.6× 10.2× 1574.7×*
Cycles-per-pixel (without I/O) 357,993 8,950 14,070 742*
  1. * It should be noted that the Ambric Am2045 runs a simplified version of the algorithm. See Section 6 for details