Recent changes to Data Types

Data Types modified by vISTe

vISTe — Tue, 08 Oct 2013 15:11:17 -0000

--- v3
+++ v4
@@ -20,10 +20,10 @@

 In case of DTI , vIST/e  uses the header file which includes the names of 7 binary volume files ( a binary volume for each component of DTI tensor and an intensity volume) and 3 values for spacing. Hence each component of the tensor must be in another 3d raw volume file.  

-/* DTI BMT  header file format for raw binary*/
+- DTI BMT header file format for raw binary
 T
 float
-XX XX.dat  /* name of the binary file for the first component of tensors */ 
+XX XX.dat   
 YY YY.dat
 ZZ ZZ.dat
 XY XY.dat

Data Types modified by vISTe

vISTe — Tue, 08 Oct 2013 15:10:17 -0000

--- v2
+++ v3
@@ -18,6 +18,20 @@
 0.0337572  0.999414  -0.00569091  -103.771  
 0  0  0  1

+In case of DTI , vIST/e  uses the header file which includes the names of 7 binary volume files ( a binary volume for each component of DTI tensor and an intensity volume) and 3 values for spacing. Hence each component of the tensor must be in another 3d raw volume file.  
+
+/* DTI BMT  header file format for raw binary*/
+T
+float
+XX XX.dat  /* name of the binary file for the first component of tensors */ 
+YY YY.dat
+ZZ ZZ.dat
+XY XY.dat
+XZ XZ.dat
+YZ YZ.dat
+I  II.dat
+1.796875 1.796875 1.800000
+

 Since vIST/e has a HARDIConverter plugin which converts Discrete Sphere representations to Spherical Harmonis or vice versa, the Spherical Harmonics modelled HARDI data attached to the vIST/e distribution can be converted to Discrete Sphere model data.

Data Types modified by vISTe

vISTe — Wed, 29 May 2013 15:03:20 -0000

--- v1
+++ v2
@@ -19,6 +19,8 @@
 0  0  0  1

+Since vIST/e has a HARDIConverter plugin which converts Discrete Sphere representations to Spherical Harmonis or vice versa, the Spherical Harmonics modelled HARDI data attached to the vIST/e distribution can be converted to Discrete Sphere model data. 
+
 VTK
 ----
 vIST/e can read DTI volumes and scalar volumes stored in .vti format.
@@ -28,6 +30,6 @@
 ------------------------------------

 - vIST/e can read DTI data or Scalar volumes in single or double file(with a seperated header file) Nifti format.
-- If DTI data or HARDI data with ODF reconstructions in Spherical Harmonics or Discrete Sphere coefficients are stored in LONI MIND format, vIST/e can also read these files. For a few sample files: http://mind.loni.ucla.edu/tools/sample-files/ .
+- If DTI data or HARDI data ( ie. with ODF reconstructions in Spherical Harmonics or Discrete Sphere coefficients) are stored in LONI MIND format, vIST/e can also read these files. For a few sample files: http://mind.loni.ucla.edu/tools/sample-files/ .

Data Types modified by vISTe

vISTe — Tue, 21 May 2013 09:59:55 -0000

Raw Data

vIST/e can read the data stored in "raw" format (if the volume has a header file along with the raw binary data file or files). Header file is a simple text file for all kinds of data. There is only one data file for a scalar image or 6 data files for DTI or 15 data files for HARDI data in spherical harmonics representation of order 15.

The data file for a scalar volume, consists the data as a one dimensional binary array. Here is the contents of the header file of the 28350 Kb binary data file mri_brain.raw :

Contents of the header file mri_brain.vol:

Data.FileName = mri_brain.raw
Data.Type = raw
Data.Dimensions = 288 288 175
Data.PixelSpacing = 1.000000 1.000000 1.000000
Data.NrBits = 16
Data.NrComponents = 1
Data.Transformation = -0.0533617 -0.0038837 -0.998567 207.012
-0.998005 0.0340125 0.0531993 244.837
0.0337572 0.999414 -0.00569091 -103.771
0 0 0 1

VTK

vIST/e can read DTI volumes and scalar volumes stored in .vti format.

Nifti and Nifti with Mind Extentions

vIST/e can read DTI data or Scalar volumes in single or double file(with a seperated header file) Nifti format.
If DTI data or HARDI data with ODF reconstructions in Spherical Harmonics or Discrete Sphere coefficients are stored in LONI MIND format, vIST/e can also read these files. For a few sample files: http://mind.loni.ucla.edu/tools/sample-files/ .