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+utils/interp3_gpu.m

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+% INTERP3_GPU - fast texture-based GPU based interpolation method for 3D deformation 
+% input array is deformated gived X,Y,Z deformation vector fields 
+%
+% array = interp3_gpu(array, DVF_X, DVF_Y, DVF_Z)
+%
+% Inputs:
+%    **array            volume to be deformed 
+%    **DVF_X            deformation field in X direction 
+%    **DVF_Y            deformation field in Y direction 
+%    **DVF_Z            deformation field in Z direction 
+% Outputs: 
+%    ++array            deformed volume 
+
+
+%*-----------------------------------------------------------------------*
+%|                                                                       |
+%|  Except where otherwise noted, this work is licensed under a          |
+%|  Creative Commons Attribution-NonCommercial-ShareAlike 4.0            |
+%|  International (CC BY-NC-SA 4.0) license.                             |
+%|                                                                       |
+%|  Copyright (c) 2018 by Paul Scherrer Institute (http://www.psi.ch)    |
+%|                                                                       |
+%|       Author: CXS group, PSI                                          |
+%*-----------------------------------------------------------------------*
+% You may use this code with the following provisions:
+%
+% If the code is fully or partially redistributed, or rewritten in another
+%   computing language this notice should be included in the redistribution.
+%
+% If this code, or subfunctions or parts of it, is used for research in a 
+%   publication or if it is fully or partially rewritten for another 
+%   computing language the authors and institution should be acknowledged 
+%   in written form in the publication: “Data processing was carried out 
+%   using the “cSAXS matlab package” developed by the CXS group,
+%   Paul Scherrer Institut, Switzerland.” 
+%   Variations on the latter text can be incorporated upon discussion with 
+%   the CXS group if needed to more specifically reflect the use of the package 
+%   for the published work.
+%
+% A publication that focuses on describing features, or parameters, that
+%    are already existing in the code should be first discussed with the
+%    authors.
+%   
+% This code and subroutines are part of a continuous development, they 
+%    are provided “as they are” without guarantees or liability on part
+%    of PSI or the authors. It is the user responsibility to ensure its 
+%    proper use and the correctness of the results.
+
+
+function array = interp3_gpu(array, DVF_X, DVF_Y, DVF_Z)
+
+
+  % apply 3D deformation using GPU textures 
+  try
+     array = interp3_gpu(array, DVF_X, DVF_Y, DVF_Z); 
+  catch err 
+      if strcmpi(err.identifier, 'MATLAB:mex:ErrInvalidMEXFile')
+            % recompile the MEX code 
+            path = replace(mfilename('fullpath'), mfilename, ''); 
+            mexcuda('-output', fullfile(path,'private/interp3_gpu_ker'), fullfile(path, 'private/interp3_gpu_ker.cu'))
+            array = interp3_gpu(array, DVF_X, DVF_Y, DVF_Z);    
+      else
+          rethrow(err) 
+      end
+  end
+      
+
+
+end