Diffusion gradient vector field in 3D 1.0

Date Added: June 15, 2013 | Visits: 357

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Generate the diffusion gradient vector field as in Xu and Prince 1998dgvf_calc is the three dimensional extension of the 2D version described in Equation 12Xu and Prince 1998,"Snakes, Shapes, and Gradient Vector Flow", IEEE Transactions on Image Processing Vol.7(3)Input:I: three dimensional image (matrix)miu: the smoothing parameter (more smoothing -- higher miu-- for noisy images)niter: number of iterationsdt: time stepdx, dy,dz: pixel spacing, set all to one for isotropic imagesOutput:un, vn, wn: the gradient vector fieldExample usage:[un vn wn] = dgvf_calc(I,sqrt(numel(I)), 0.5, 1, 1, 1, 1)% Author: Dr.Khaled Khairy, Janelia Farm Research Campus, Howard Hughes Medical Institute.June 2011.Please send corrections or comments to khairyk@janelia.hhmi.org

Requirements: No special requirements

Platforms: Matlab

Keyword: Dgvf Calcisqrtnumeli, Images, Isotropic, Niter, Noisy, Output, Pixel, Spacing, Usage

Users rating: 0/10

License: Shareware

Size: 10 KB

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