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FSL
fdt
Commits
05e3b786
Commit
05e3b786
authored
20 years ago
by
Stephen Smith
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doc/fdt_biggest.html
+5
-4
5 additions, 4 deletions
doc/fdt_biggest.html
doc/fdt_display.html
+3
-1
3 additions, 1 deletion
doc/fdt_display.html
doc/fdt_thresh.html
+6
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6 additions, 6 deletions
doc/fdt_thresh.html
with
14 additions
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11 deletions
doc/fdt_biggest.html
+
5
−
4
View file @
05e3b786
...
@@ -12,10 +12,11 @@ from that voxel reaching the target mask. <b>find_the_biggest</b> classifies
...
@@ -12,10 +12,11 @@ from that voxel reaching the target mask. <b>find_the_biggest</b> classifies
seed voxels according to the target mask with which they show the highest
seed voxels according to the target mask with which they show the highest
probability of connection. It is run as follows:
probability of connection. It is run as follows:
<p><b>
find_the_biggest list_of_volumes outputname
</b>
<p><b>
find_the_biggest list_of_volumes outputname
</b>
Where the list of volumes is the outputs of
<b>
Connectivity
based seed
Where the list of volumes is the outputs of
<b>
Connectivity
-
based seed
classification
</b>
(i.e., files named seeds_to_target1 etc etc)
and threshold
classification
</b>
(i.e., files named seeds_to_target1 etc etc)
.
is experessed as a number of samples
<p><IMG
ALIGN=
RIGHT
height=
300
SRC=
"fdt_images/fdt_seeds2targets_thal.gif"
<p><IMG
ALIGN=
RIGHT
height=
300
SRC=
"fdt_images/fdt_seeds2targets_thal.gif"
ALT=
"connectivity-based classification of thalamus"
>
ALT=
"connectivity-based classification of thalamus"
>
<p>
The example on the right uses ProbTrack and find_the_biggest to perform hard segmentation
<p>
The example on the right uses ProbTrack and find_the_biggest to perform hard segmentation
of the thalamus on the basis of its connections to cortex
of the thalamus on the basis of its connections to cortex.
\ No newline at end of file
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doc/fdt_display.html
+
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−
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05e3b786
...
@@ -9,4 +9,6 @@ possible to display these vectors using <b>RGB</b> coding (where the colours
...
@@ -9,4 +9,6 @@ possible to display these vectors using <b>RGB</b> coding (where the colours
red,green and blue represent diffusion in the x,y,z axes respectively) or
red,green and blue represent diffusion in the x,y,z axes respectively) or
using
<b>
lines
</b>
where a line at each voxel represent the principle
using
<b>
lines
</b>
where a line at each voxel represent the principle
diffusion direction at that voxel. For more details see the relevant fslview
diffusion direction at that voxel. For more details see the relevant fslview
<a
href=
"http://www.fmrib.ox.ac.uk/fsl/fslview/dti_tutorial.html"
>
tutorial
</a>
<a
href=
"http://www.fmrib.ox.ac.uk/fsl/fslview/dti_tutorial.html"
\ No newline at end of file
target=
"_top"
>
tutorial
</a>
.
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doc/fdt_thresh.html
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05e3b786
...
@@ -3,7 +3,7 @@ BACKGROUND="fdt_images/fsl-bg.jpg">
...
@@ -3,7 +3,7 @@ BACKGROUND="fdt_images/fsl-bg.jpg">
<h3>
proj_thresh
</h3>
<h3>
proj_thresh
</h3>
<b>
proj_thresh
</b>
is a command line utility that provides an alternative way of
<b>
proj_thresh
</b>
is a command line utility that provides an alternative way of
expressing connection probability in connectivity-based segmentation. It is
expressing connection probability in connectivity-based segmentation. It is
run on the output of
<b>
connectivity-based seed
run on the output of
the
<b>
connectivity-based seed
classification
</b>
mode within
<a
href=
"fdt_probtrack.html"
>
<b>
ProbTrack
</b></a>
.
classification
</b>
mode within
<a
href=
"fdt_probtrack.html"
>
<b>
ProbTrack
</b></a>
.
<p>
The output of
<b>
Connectivity-based seed classification
</b>
is a single volume for
<p>
The output of
<b>
Connectivity-based seed classification
</b>
is a single volume for
each target mask, named
<b>
seeds_to_{target}
</b>
where {target} is replaced
each target mask, named
<b>
seeds_to_{target}
</b>
where {target} is replaced
...
@@ -12,10 +12,10 @@ value of each voxel within the seed mask is the number of samples seeded
...
@@ -12,10 +12,10 @@ value of each voxel within the seed mask is the number of samples seeded
from that voxel reaching the target mask.
from that voxel reaching the target mask.
<br><b>
proj_thresh
</b>
is run as follows:
<br><b>
proj_thresh
</b>
is run as follows:
<p><b>
proj_thresh list_of_volumes threshold
</b></p>
<p><b>
proj_thresh list_of_volumes threshold
</b></p>
Where the list of volumes is the outputs of
<b>
Connectivity
based seed
Where the list of volumes is the outputs of
<b>
Connectivity
-
based seed
classification
</b>
(i.e., files named seeds_to_target1 etc etc) and threshold is exp
e
ressed as a number of samples
classification
</b>
(i.e., files named seeds_to_target1 etc etc) and threshold is expressed as a number of samples
<br>
For each voxel in the seeds mask that has a value above threshold for at
<br>
For each voxel in the seeds mask that has a value above threshold for at
least target mask,
<b>
proj_thresh
</b>
calculates the number of samples reaching each target mask
least
one
target mask,
<b>
proj_thresh
</b>
calculates the number of samples reaching each target mask
as a proportion of the total number of samples reaching any target mask. The
as a proportion of the total number of samples reaching any target mask. The
output of
<b>
proj_thresh
</b>
is a single volume for each target mask, names
output of
<b>
proj_thresh
</b>
is a single volume for each target mask.
<b>
???
</b>
where seed voxels will have values between zero and one.
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