Removing hidden polygons when rendering a 3D object

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defunct C7=5F>20
defunct C7=5F>20 on 4 Apr 2013
hallo!
I have the following problem: I have a 3D (non-convex) object, represented as a mesh, and I have a camera (with intrinsic and extrinsic parameters) and I want to find out, which faces will be visible from the camera (for example, as a set of face indices). I need it not for renderng, so I cannot use standard MATLAB cababities (hidden off\on) for that. Any help will be deeply appreciated!

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