[MINC-users] minctracc on 2D volumes?

[Paul GRAVEL]

Dear all,

Would anyone know if it is possible to run minctracc on 2D minc volumes?

I am running some 2D simulations in different orientations and I would 
like to estimate some transformations using minctracc (I would like to 
avoid the need to create 3D volumes if possible). I have tried it but to 
no avail, i.e. the output xfm file contains nan values (please see below 
for output).

Any suggestions would be greatly appreciated.

Best Regards,

Paul
_________________________________

[2D_MINC] 218% minctracc -clobber -mi -lsq6 xtrue_rot45deg.mnc xtrue_target_0deg.mnc xtrue_45deg2_0deg.xfm

COG of v1: -0.800728 3.766018 0.000000
COG of v2: 3.196798 2.931377 0.000000
    [trans] = 3.997526 -0.834641 0.000000
WARNING: source volume not UNSIGNED_BYTE, will do conversion now.
WARNING: target volume not UNSIGNED_BYTE, will do conversion now.
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.8491=F    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.6164=F    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.4418=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.6164=F    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.4418=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
out :     nan=F     nan=F  1.5000=T    1.0000=T  1.0000=T  1.0000=T 
0.0000=T  0.0000=T  0.0000=T
Initial objective function val = 10000000000.00000000
Final objective function value = 10000000000.00000000

[2D_MINC] 221% xfm2param xtrue_45deg2_0deg.xfm
after parameter extraction
-center         0.00000    0.00000    0.00000
-translation        nan        nan        nan
-rotation           nan        nan        nan
-scale              nan        nan        nan
-shear              nan        nan        nan

[2D_MINC] 222% mincinfo xtrue_rot45deg.mnc
file: xtrue_rot45deg.mnc
image: signed__ short -32768 to 32767
image dimensions: zspace yspace xspace
     dimension name         length         step        start
     --------------         ------         ----        -----
     zspace                      1     -1.21875           -0
     yspace                    256      1.21875     -155.391
     xspace                    256      1.21875     -155.391

[2D_MINC] 223% mincinfo xtrue_target_0deg.mnc
file: xtrue_target_0deg.mnc
image: signed__ short -32768 to 32767
image dimensions: zspace yspace xspace
     dimension name         length         step        start
     --------------         ------         ----        -----
     zspace                      1     -1.21875           -0
     yspace                    256      1.21875     -155.391
     xspace                    256      1.21875     -155.391