EAN: 9783319414706

LOCAL FEATURES IN NATURAL IMAGES VIA SINGULARIT...

This monograph considers a basic problem in the computer analysis of natural images  which are
images of scenes involving multiple objects that are obtained by a camera lens or a viewer's
eye. The goal is to detect geometric features of objects in the image and to separate regions
of the objects with distinct visual properties. When the scene is illuminated by a single
principal light source  we further include the visual clues resulting from the interaction of
the geometric features of objects  the shade shadow regions on the objects  and the apparent
contours. We do so by a mathematical analysis using a repertoire of methods in singularity
theory. This is applied for generic light directions of both the stable configurations for
these interactions  whose features remain unchanged under small viewer movement  and the
generic changes which occur under changes of view directions. These may then be used to
differentiate between objects and determine their shapes and positions.

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