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Image Acquisition, Reconstruction, and Presentation   for 3-D Computer Tomography (CT)  

electron beam failure analysis   interventional angiography   cryo em   failure analysis   interventional angiography   TEM numerical quantitative statistical   quantum efficient   diagnostic residuals Bayes Bayesian   Kalman filter density estimates x-ray failure analysis medical systems MRI SPECT microanalysis TEM   medical systems technologies
SIRT ART MENT Maximum Entropy MAP Maximum A Posteriori ML Maximum Likelihood

Cyber Technology, Inc.

projection fast limited scan view reconstruction nonlinear iterative constrained inversion
matrix-based relaxation system transmission electron beam nde ndi inspection missing wedge cardiac cardiovascular electron microscopy dose reduction optimization clinical radiology ct scan



Applications of High Efficiency Computed Tomography
with Optimized Recursions (HECTOR™)



Would you like to reduce your projection count, exposure time, and radiation level many-fold?
Would you like to increase your quantitative accuracy and reduce computing time?
Would you like to use a-priori information?

HECTOR™ is the Solution to Highest Numerical and Quantum Efficiency in Tomography  [1]

for X-Ray, TEM, MRI and other imaging modalities



For a free evaluation of HECTOR™ with your data please contact us. [2]


1 Patents Pending / Allowed:  PCT/US-2009-0324047-A1, US-2010-0278413-A1; see also  (HECT™)   2008;  and  (HECTOR™)   2010
2 Restrictions on data format and geometry may apply. Contact us for solutions.
 













Quantum Dots from 71 Projections


Quantum Dots: HECTOR for HAADF-STEM Imaging with 71 projections and only 3 high resolution iterations (2012).
Top vs. bottom row: two near-orthogonal views of ErSi2 catalyst. Columns from left to right: (a) original projections;
 (b) re-projection of estimated object density; (c) residual error; and (d) optimizing gain relaxation matrix.
Data kindly provided by Christian Kuebel of Karlsruhe Institute of Technology (KIT), Germany.

numerical phantom, full, 2005 numerical phantom, stenosis #1 hydraulic phantom, 2003, 6 views hydraulic phantom, 2003, 6 views, 125 deg

Numerical Coronary Tree Model
(Simulation) with Stenotic Plaque
Projection simulation and
reconstruction at CTI
  		Stenosis of the Tree Model with
HECT from Six Projections
Projection simulation and
reconstruction at CTI   		Hydraulic Coronary Model with
HECT from Six Projections
Data collected at Johns Hopkins
University, Department of
Cardiology

 		Hydraulic Coronary Model with
HECT from Six Projections
Data collected at Johns Hopkins
University, Department of
Cardiology

Myocardial blush, canine, 1993
Canine Myocardial Blush over 1.5 Beats
from Six Projective Cone Beam Views
(X-Rays, HECT)
Data recorded at Wayne State
University, Detroit, MI
support by NIH SBIR grant
Spiroplasma Melliferum, 2008
Slice from Transmission
Electron Microscopy (HECT)
Data provided by NIBIB / NIH
 		Diagnostic Residuals, 2008
Diagnostic Projection Residuals:
Left: SIRT 15 iterations,  
Right: HECT 1 iteration
for Noisy Cube Challenge Data Set
Data provided by NIBIB / NIH
HECT reconstruction, challenge set, 1 iteration
HECT of Noisy Cube
Challenge Data Set
Data provided by NIBIB / NIH
 

 






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