Iterative Closest Point and 3D matrices

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ocelote 2012-11-23

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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 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 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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Matt J 2012-11-23

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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 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.