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Recognizing Planar Objects Using Invariant Image Features (Paperback, 1993 ed.)
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Recognizing Planar Objects Using Invariant Image Features (Paperback, 1993 ed.)
Series: Lecture Notes in Computer Science, 676
Expected to ship within 10 - 15 working days
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Given a familiar object extracted from its surroundings, we humans
have little difficulty in recognizing it irrespective of its size,
position and orientation in our field of view. Changes in lighting
and the effects of perspective also pose no problems. How do we
achieve this, and more importantly, how can we get a computer to do
this? One very promising approach is to find mathematical functions
of an object's image, or of an object's 3D description, that are
invariant to the transformations caused by the object's motion.
This book is devoted to the theory and practice of such invariant
image features, so-called image invariants, for planar objects. It
gives a comprehensive summary of the field, discussing methods for
recognizing both occluded and partially occluded objects, and also
contains a definitive treatmentof moment invariants and a tutorial
introduction to algebraic invariants, which are fundamental to
affine moment invariants and to many projective invariants. A
number of novel invariant functions are presented and the results
of numerous experiments investigating the stability of new and old
invariants are discussed. The main conclusion is that moment
invariants are very effective, both for partially occluded objects
and for recognizing objects in grey-level images.
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