Grouping and Structure Recovery for Images of Objects with Finite Rotational Symmetry
Jane J. Liu, Joe Mundy, Andrew Zisserman · 2001
It is shown that 3D objects with discrete rotational symmetry induce geometric relations in the image. Symmetry related points on the object are imaged to points which satisfy these image geometric relations. These relations are unaffected by camera calibration (interior orientation) and object pose. The relations can be utilised to group features in the image arising from the object. Furthermore, 3D structure of the object can be recovered from a single image up to a specified ambiguity. The paper illustrates these mechanisms on real image examples.