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Monday, October 30, 2017

Implemented an efficient convolution ( integral   f(x)*e(-K*(X-x)))  based on the iterative formula.
This applies to non-uniformly sample data.

Resulted in x10  speed improvement in the following models:

1.  Totfs 8
2. Tofts Modified #9
3.  Sokoloff short formula  #33
4.  Sokoloff long formula #34
FireVoxel Build 255 is released.

Saturday, October 28, 2017

DICOM file save:  Window Center and Width are now save to DICOM from current FireVoxel settings.

Friday, October 27, 2017

Thursday, October 26, 2017

Improved the handling of the VTF file save when the target folder is invalid or does not exist.
Dynamic Model #21:  Fixed the "indefinite hang" defect.
Fixed defects in "Linear Conversion over the ROI" function (renamed from Amplification).

Wednesday, October 25, 2017

FireVoxel Build 254 was released
Implemented ROI morphology functions, under   ROI>Morphology menu

1,  Medial Plane extraction (skeleton) by erosion
2,  Medial plane MAT transform
3.  Average depth (internal thickness) calculation.

Sunday, October 15, 2017

Dynamic model #43 (2CXM with Grid Simplex) : Corrected the naming of the Output parameters
1.  Corrected the SVD calculation in Procrustes problem for 3D landmark matching (2 monkeys\3 landmarks)

2.  Provided an ABT subtest for this case.

Friday, October 6, 2017

Breast  Lesion T1-EPI-PET workflow:

1.  Modified User Interface so the parameter selection dialog is activated on every run.
2.  Removed the corresponding "Set parameter...." menu items, since they are not needed
due to #11.
3.  Corrected the default parameters for PET-T1 registration

Thursday, October 5, 2017

FireVoxel Build 253 is released.
Corrected defect in EdgeWave dialog when the "Connected Component" parameter was incorrectly recorded.
Reengineered the Global Optimization function, that resuled in  x500 speed up for T2\T2* fitting
Reengineered the 2XCM with Grid Simplex for   x8 speed up.  This is achieved by optimizing the principal exponent convolution function and is applicable to many other models.

Tuesday, October 3, 2017

Fixed Dynamic Model 16 (T2/T2* mapping) defect when Real volumes were not processed
in the "Process As Single TAC" mode.




Implemented much faster version of 2CXM based on the convolution of PWL and Exponential function.

Added a corresponding ABT subtest.