Abstract
In this work, a new method to detect objects under scaled orthographic projections is presented. It also calculates the parameters of the transformations the object has undergone. The method is based on the use of the Generalized Hough Transform (GHT) that compares a template with a projected image. The computational requirements of the algorithm are reduced by restricting the transformation to the template edge points and using invariant information during the comparison process. This information is obtained from a precomputed table of the template that is directly transformed and compared with the image table. Moreover, a multiresolution design of the algorithm speeds-up parameter calculation.
Published Version
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