[Insight-users] Improving the metric value significantly!
motes motes
mort.motes at gmail.com
Tue Aug 11 18:52:47 EDT 2009
I am running a modified version of the 2D BSplineDeformableTransform
registration example.
If I run it for 100 iterations straight I get the following final metric
value and time:
...
...
Current iteration = 99
Metric value = 523.29
[INFO]::Write last Transform Parameters
Probe Tag Starts Stops Time (s)
Registration 1 1 760.658
Now If I run it as 10*10 iterations where I pass the
finalTransformParameters as input to the transform after each of the 10
iterations I get:
Current iteration = 9
Metric value = 330.641
Probe Tag Starts Stops Time (s)
Registration 1 1 72.7789
The total time for the 10*10 approach is:
Registration 1 1 71.379
Registration 1 1 71.2781
Registration 1 1 71.3366
Registration 1 1 71.0148
Registration 1 1 71.0298
Registration 1 1 71.2541
Registration 1 1 71.8186
Registration 1 1 71.0167
Registration 1 1 73.3319
Registration 1 1 72.7789
total: 716,2085
So the quality is about a factor 523.29/330.641 = 1.583 better and about 44
seconds faster.
Any ideas on why performing 10*10 iterations give such a better result than
performing 100 iterations straight?
Below is the complete print of both test. First the 100 iterations straight
and then the 10*10 iterations:
[INFO]::Starting Registration
Current iteration = 0
Metric value = 1250.41
Current iteration = 1
Metric value = 1052.62
Current iteration = 2
Metric value = 998.251
Current iteration = 3
Metric value = 988.934
Current iteration = 4
Metric value = 939.29
Current iteration = 5
Metric value = 928.959
Current iteration = 6
Metric value = 886.587
Current iteration = 7
Metric value = 878.586
Current iteration = 8
Metric value = 839.342
Current iteration = 9
Metric value = 836.203
Current iteration = 10
Metric value = 817.779
Current iteration = 11
Metric value = 802.519
Current iteration = 12
Metric value = 785.766
Current iteration = 13
Metric value = 774.242
Current iteration = 14
Metric value = 754.812
Current iteration = 15
Metric value = 743.522
Current iteration = 16
Metric value = 737.235
Current iteration = 17
Metric value = 728.559
Current iteration = 18
Metric value = 717.322
Current iteration = 19
Metric value = 705.742
Current iteration = 20
Metric value = 700.79
Current iteration = 21
Metric value = 700.665
Current iteration = 22
Metric value = 690.481
Current iteration = 23
Metric value = 689.587
Current iteration = 24
Metric value = 682.805
Current iteration = 25
Metric value = 681.994
Current iteration = 26
Metric value = 677.302
Current iteration = 27
Metric value = 675.799
Current iteration = 28
Metric value = 670.539
Current iteration = 29
Metric value = 669.862
Current iteration = 30
Metric value = 665.488
Current iteration = 31
Metric value = 664.107
Current iteration = 32
Metric value = 659.459
Current iteration = 33
Metric value = 658.766
Current iteration = 34
Metric value = 655.056
Current iteration = 35
Metric value = 653.779
Current iteration = 36
Metric value = 649.939
Current iteration = 37
Metric value = 648.844
Current iteration = 38
Metric value = 645.275
Current iteration = 39
Metric value = 644.185
Current iteration = 40
Metric value = 640.996
Current iteration = 41
Metric value = 639.828
Current iteration = 42
Metric value = 636.705
Current iteration = 43
Metric value = 635.562
Current iteration = 44
Metric value = 632.591
Current iteration = 45
Metric value = 631.601
Current iteration = 46
Metric value = 628.668
Current iteration = 47
Metric value = 627.825
Current iteration = 48
Metric value = 625.127
Current iteration = 49
Metric value = 624.047
Current iteration = 50
Metric value = 621.346
Current iteration = 51
Metric value = 620.275
Current iteration = 52
Metric value = 617.845
Current iteration = 53
Metric value = 616.837
Current iteration = 54
Metric value = 614.049
Current iteration = 55
Metric value = 612.977
Current iteration = 56
Metric value = 610.341
Current iteration = 57
Metric value = 609.481
Current iteration = 58
Metric value = 606.853
Current iteration = 59
Metric value = 605.766
Current iteration = 60
Metric value = 602.988
Current iteration = 61
Metric value = 601.962
Current iteration = 62
Metric value = 599.225
Current iteration = 63
Metric value = 598.164
Current iteration = 64
Metric value = 595.356
Current iteration = 65
Metric value = 594.261
Current iteration = 66
Metric value = 591.51
Current iteration = 67
Metric value = 590.453
Current iteration = 68
Metric value = 587.536
Current iteration = 69
Metric value = 586.469
Current iteration = 70
Metric value = 583.695
Current iteration = 71
Metric value = 582.713
Current iteration = 72
Metric value = 579.95
Current iteration = 73
Metric value = 578.899
Current iteration = 74
Metric value = 576.22
Current iteration = 75
Metric value = 575.275
Current iteration = 76
Metric value = 572.503
Current iteration = 77
Metric value = 571.669
Current iteration = 78
Metric value = 568.888
Current iteration = 79
Metric value = 568.318
Current iteration = 80
Metric value = 565.322
Current iteration = 81
Metric value = 564.652
Current iteration = 82
Metric value = 561.529
Current iteration = 83
Metric value = 561.349
Current iteration = 84
Metric value = 558.059
Current iteration = 85
Metric value = 557.616
Current iteration = 86
Metric value = 554.179
Current iteration = 87
Metric value = 553.638
Current iteration = 88
Metric value = 550.255
Current iteration = 89
Metric value = 549.459
Current iteration = 90
Metric value = 545.765
Current iteration = 91
Metric value = 544.212
Current iteration = 92
Metric value = 540.783
Current iteration = 93
Metric value = 538.406
Current iteration = 94
Metric value = 535.319
Current iteration = 95
Metric value = 532.849
Current iteration = 96
Metric value = 530.019
Current iteration = 97
Metric value = 527.351
Current iteration = 98
Metric value = 525.077
Current iteration = 99
Metric value = 523.29
[INFO]::Write last Transform Parameters
Probe Tag Starts Stops Time (s)
Registration 1 1 760.658
[INFO]::Registration completed!
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[INFO]::Starting Registration
Current iteration = 0
Metric value = 1250.41
Current iteration = 1
Metric value = 1052.62
Current iteration = 2
Metric value = 998.251
Current iteration = 3
Metric value = 988.934
Current iteration = 4
Metric value = 939.29
Current iteration = 5
Metric value = 928.959
Current iteration = 6
Metric value = 886.587
Current iteration = 7
Metric value = 878.586
Current iteration = 8
Metric value = 839.342
Current iteration = 9
Metric value = 836.203
Probe Tag Starts Stops Time (s)
Registration 1 1 71.379
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 817.779
Current iteration = 1
Metric value = 911.784
Current iteration = 2
Metric value = 786.9
Current iteration = 3
Metric value = 823.547
Current iteration = 4
Metric value = 764.919
Current iteration = 5
Metric value = 787.627
Current iteration = 6
Metric value = 735.425
Current iteration = 7
Metric value = 753.176
Current iteration = 8
Metric value = 713.713
Current iteration = 9
Metric value = 725.794
Probe Tag Starts Stops Time (s)
Registration 1 1 71.2781
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 694.506
Current iteration = 1
Metric value = 844.985
Current iteration = 2
Metric value = 695.623
Current iteration = 3
Metric value = 725.924
Current iteration = 4
Metric value = 678.204
Current iteration = 5
Metric value = 717.822
Current iteration = 6
Metric value = 667.199
Current iteration = 7
Metric value = 694.74
Current iteration = 8
Metric value = 649.602
Current iteration = 9
Metric value = 672.77
Probe Tag Starts Stops Time (s)
Registration 1 1 71.3366
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 637.146
Current iteration = 1
Metric value = 816.554
Current iteration = 2
Metric value = 659.315
Current iteration = 3
Metric value = 684.975
Current iteration = 4
Metric value = 645.472
Current iteration = 5
Metric value = 674.427
Current iteration = 6
Metric value = 627.892
Current iteration = 7
Metric value = 651.59
Current iteration = 8
Metric value = 611.565
Current iteration = 9
Metric value = 630.496
Probe Tag Starts Stops Time (s)
Registration 1 1 71.0148
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 597.433
Current iteration = 1
Metric value = 778.622
Current iteration = 2
Metric value = 610.481
Current iteration = 3
Metric value = 653.762
Current iteration = 4
Metric value = 588.401
Current iteration = 5
Metric value = 641.37
Current iteration = 6
Metric value = 566.543
Current iteration = 7
Metric value = 604.455
Current iteration = 8
Metric value = 551.011
Current iteration = 9
Metric value = 574.794
Probe Tag Starts Stops Time (s)
Registration 1 1 71.0298
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 531.244
Current iteration = 1
Metric value = 674.44
Current iteration = 2
Metric value = 526.883
Current iteration = 3
Metric value = 553.249
Current iteration = 4
Metric value = 490.66
Current iteration = 5
Metric value = 522.099
Current iteration = 6
Metric value = 482.033
Current iteration = 7
Metric value = 505.727
Current iteration = 8
Metric value = 461.877
Current iteration = 9
Metric value = 480.441
Probe Tag Starts Stops Time (s)
Registration 1 1 71.2541
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 445.601
Current iteration = 1
Metric value = 610.837
Current iteration = 2
Metric value = 462.224
Current iteration = 3
Metric value = 485.76
Current iteration = 4
Metric value = 434.521
Current iteration = 5
Metric value = 464.248
Current iteration = 6
Metric value = 426.544
Current iteration = 7
Metric value = 441.414
Current iteration = 8
Metric value = 408.767
Current iteration = 9
Metric value = 414.533
Probe Tag Starts Stops Time (s)
Registration 1 1 71.8186
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 393.686
Current iteration = 1
Metric value = 594.624
Current iteration = 2
Metric value = 395.791
Current iteration = 3
Metric value = 442.752
Current iteration = 4
Metric value = 371.636
Current iteration = 5
Metric value = 400.695
Current iteration = 6
Metric value = 357.976
Current iteration = 7
Metric value = 390.926
Current iteration = 8
Metric value = 357.633
Current iteration = 9
Metric value = 373.616
Probe Tag Starts Stops Time (s)
Registration 1 1 71.0167
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 345.033
Current iteration = 1
Metric value = 566.574
Current iteration = 2
Metric value = 349.902
Current iteration = 3
Metric value = 412.93
Current iteration = 4
Metric value = 329.867
Current iteration = 5
Metric value = 394.653
Current iteration = 6
Metric value = 321.353
Current iteration = 7
Metric value = 376.426
Current iteration = 8
Metric value = 309.734
Current iteration = 9
Metric value = 354.27
Probe Tag Starts Stops Time (s)
Registration 1 1 73.3319
[INFO]::Registered image saved!
[INFO]::Starting Registration
Current iteration = 0
Metric value = 300.254
Current iteration = 1
Metric value = 522.97
Current iteration = 2
Metric value = 318.137
Current iteration = 3
Metric value = 386.045
Current iteration = 4
Metric value = 316.046
Current iteration = 5
Metric value = 381.835
Current iteration = 6
Metric value = 300.562
Current iteration = 7
Metric value = 354.384
Current iteration = 8
Metric value = 286.474
Current iteration = 9
Metric value = 330.641
Probe Tag Starts Stops Time (s)
Registration 1 1 72.7789
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