Fitting Noisy Point Clouds With Confidence

DA

Stefan Ohrhallinger, Michael Wimmer

Content:

Description

There are many methods which fit a surface to a noisy point cloud 'as good as possible', but this does not guarantee conformance to the actual physical object. For the sensing device which generates these points, we can assume a noise model, based on the manufacturer's specifications, or measure its properties to a certain extent from that data. Then we can say that the surface passes at a specific location close to such a point with certain confidence depending on such a probability density function.

Use the constraints of this model to pose surface fitting as an energy minimization problem, with a property of the surface (e.g. absolute mean curvature, longest-edge-in-triangle) as the objective to be minimized.

Task

Requirements

Some knowledge of statistics and mathematics.

Environment

C/C++, platform-independent