Iterative Closest Point and 3D matrices

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ocelote
ocelote 2012-11-23
Hi,
I intend to use an ICP plugin to match 2 volumes : http://www.mathworks.com/matlabcentral/fileexchange/27804-iterative-closest-point
Unfortunately, my matrices created form a stack of dicom files dont work with ICP . My matrices are 500*500*80 of vertices while the demo provided works with vectors 3*6400. Do you know how to pass from vertices to vectors or more generally how I could reach my goal namely re-positioning a 3d volume ?
Regards.
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Matt J
Matt J 2012-11-23
编辑：Matt J 2012-11-23
My matrices are 500*500*80 of vertices
Are you sure you don't mean your image volumes are 500x500x80? ICP doesn't seem appropriate if you only have image intensity data, rather than a list of coordinates.
ocelote
ocelote 2012-11-23
编辑：ocelote 2012-11-23
Thank you. Is there any way for me to get coordinate from my "volume" of intensity points ?
Would you know any appropriate methodology ?

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回答（1 个）

Matt J
Matt J 2012-11-23
编辑：Matt J 2012-11-23
That's a surface segmentation problem. Maybe use BWPERIM in conjunction with FIND/IND2SUB.
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ocelote
ocelote 2012-11-27
M is the model (AB) and D is the data (A), a part of AB. Unfortunately the result is http://hpics.li/304865b where the red part (A) becomes twice bigger whereas it should be half. No I dont have the background either I put 1 or 0 in isosurface.
Matt J
Matt J 2012-11-27
Have you verified that the isosurface() output identifies the surface that you want?

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