Search This Blog

Thursday, September 28, 2017

x2 Speed up for the convoluting PWL (piece wise linear) function with the exponential kernel, by reducing the number of required exponent calculations.

Tuesday, September 26, 2017

2CXM model was implemented using the    Simplex Optimization with Gridding
Initial setup contains ROI region (orange) and Arterrial Input Function  (blue).  It is displayed as concentration.

Fitting curves displayed as Concentration


Resulting fitting optimal parameters


Friday, September 15, 2017

BiCal on 4D images: implemented an option and the user interface for  "Static\Dynamic" field option when in "Static field" we perform BiCal only once on the starting timepoint and then apply the resulting field to the rest of the timepoints.

Thursday, September 14, 2017

Whole Lever ROI was segmented on VIBE and.
Then GRASP was registered to   VIBE+ROI.
Note: BiCal non-uniformity correction on GRASP was critical.

GRASP case 01

GRASP case 02

Initial variant of fully automatic liver registration from VIBE abdominal MR.
This uses: BiCal, Edge Constrained Smooth, EdgeWave with Competitive Growth.

VIBE case 01
VIBE case 02

Tuesday, September 12, 2017

Implemented Foerstner landmark Keypoints for Large Deformation registration


Large deformation registration: Foerstner Operator map: fixed the situation when some voxel have numerical overflow.

Wednesday, September 6, 2017

FireVoxel  Build 251A is released.
Layer Control Dialog:  changed the logic so if no Layers are disabled then the Active layer is deleted with the warning.
Layer Control Dialog - fixed arbitrary Active layer change when switching between 2 documents.

Monday, September 4, 2017

Implemented an initial upgrade to EdgeWave:   EdgeWaveCG (with Competitive Growth option)
Below is comparison of current EdgeWave and EdgeWaveGC   with identical parameters  and seed.

conventional EdgeWave:  (0.9/3/5mm/8mm)




EdgeWave CG   (0.9,3,5mm,8mm)