How to extract x,y,z coordinates from 3D Dicom Images?
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How to extract x,y,z coordinates from 3D Dicom Images? can any one share me idea's ?
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Walter Roberson
le 13 Nov 2018
https://www.mathworks.com/matlabcentral/answers/428899-how-to-create-x-y-z-input-of-delaunaytriangulation-x-y-z-from-jpeg-dicom-images is our existing discussion of this . we cannot answer the question until you can tell us which kind of medical image is being used
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Walter Roberson
le 14 Nov 2018
and be sure to follow the references right through to the stackoverflow page as the discussion there has key information about the handling of CT images, which are more complicated to get the position information from .
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drummer
le 29 Jan 2020
You can use the function imref3d
After knowing the world coordinates of your 3-D image, you can you the dicom tag that refers to your pixel dimensions.
info = dicominfo('yourImage.dcm');
vxlDimension = info.PixelSpacing;
vxlThickness = info.SliceThickness;
info.PixelSpacing returns x and y dimensions, so you can you vxlDimension(1) or vxlDimension(2) if they are isotropic voxels.
Cheers
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