Research Article

On the Usage of GPUs for Efficient Motion Estimation in Medical Image Sequences

Table 3

Raw runtimes of the algorithm on the GTX480 system.

Cubic root of
image size
CPU time
(ms)
GPU time
(with shared
memory) (ms)
GPU time
(without shared
memory) (ms)
GPU time
(without
L1)
(ms)

50 671 49 26 49
75 2379 155 83 155
100 5788 272 150 265
125 11338 440 240 435
150 23714 677 373 671
175 31369 955 554 942
200 47914 2037 1101 1999
225 66870 2357 1275 2312
250 91610 2864 1564 2823