How to determine the 3D points if the ray intersects the the voxel that is perpendicular to Y axis?

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Amit Chakraborty
Amit Chakraborty 2022-1-6
编辑： Matt J 2022-1-6
Here the line AB is intersecting the voxel perpendicularly on the Y-axis. How can I determine all the three points (3D poins) x.y.z in this manner? Thanks in advance.

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回答（1 个）

Matt J
Matt J 2022-1-6
编辑：Matt J 2022-1-6
You can find ray/box intersections using intersectionHull in this File Exchange package
https://www.mathworks.com/matlabcentral/fileexchange/30892-analyze-n-dimensional-convex-polyhedra?s_tid=srchtitle
However, if you are doing this for the purpose of tomographic forward projection, your only hope for fast speed is to use an optimized projector library, e.g.,
https://github.com/CERN/TIGRE/blob/master/Frontispiece/MATLAB_installation.md

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