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Revision as of 18:45, 7 January 2015 by Christopher.mullins (Created page with " Description: Performs coherence enhancing anisotropic diffusion: smooths flow-like structures (ex. vessels/tubes). Strong smoothing is performed in the direction of l...")
Description: Performs coherence enhancing anisotropic diffusion: smooths flow-like structures (ex. vessels/tubes). Strong smoothing is performed in the direction of least intensity contrast (i.e. parallel to the tube). Implemented as described in Mendrik et al., Noise reduction in computed tomography scans using 3-D anisotropic diffusion with continuous switch, IEEE Transactions on Medical Imaging, 28(10), pp. 1585-1594, 2009.
./EnhanceCoherenceUsingDiffusion [--returnparameterfile <std::string>] [--processinformationaddress <std::string>] [--xml] [--echo] [-n <int>] [-t <double>] [-a <double>] [-c <double>] [-s <double>] [--] [--version] [-h] <std::string> <std::string>
--returnparameterfile <std::string> Filename in which to write simple return parameters (int, float, int-vector, etc.) as opposed to bulk return parameters (image, geometry, transform, measurement, table).
--processinformationaddress <std::string> Address of a structure to store process information (progress, abort, etc.). (default: 0)
--xml Produce xml description of command line arguments (default: 0)
--echo Echo the command line arguments (default: 0)
-n <int>, --numIterations <int> Number of iterations used in optimization. (default: 1)
-t <double>, --timeStep <double> Time step used in optimization. (default: 0.11)
-a <double>, --alpha <double> Regularization parameter to ensure that the diffusion tensor matrix is positive definite and to prevent division by zero. Should be set to something very small. (default: 0.001)
-c <double>, --CEDContrast <double> Ratio between the second and third eigenvalues that indicates a tube-like structure. If set too low, small spherical structures will not be preserved. If set too high, tubular structures will not be filtered. (default: 15)
-s <double>, --scale <double> Scale at which first derivatives are calculated when determining the structure tensor and gradient magnitude. If set too low, filter will be overly sensitive to noise. If set too high, small structures will not be well preserved. (default: 1)
--, --ignore_rest Ignores the rest of the labeled arguments following this flag.
--version Displays version information and exits.
-h, --help Displays usage information and exits.
<std::string> (required) Input volume.
<std::string> (required) Output volume.
Author(s): Danielle F. Pace, Andinet Enquobahrie, Hua Yang, Stephen R. Aylward (Kitware)
Acknowledgements: This work is part of the TubeTK project at Kitware.