The University of Edinburgh -
Division of Informatics
Forrest Hill & 80 South Bridge

Research Paper #554

Title:Representation, Extraction and Recognition with Second-Order Topographic Surface Features
Date:Oct 1991
Presented:To be published in Image and Vision Computing
Abstract:Representations for many three dimensional object recognition systems lack highly salient visual details. Here, eight second-order volumetric primitives are defined to extend the range of descriptive features usable for object representation and thus recognition. While defined independent from the sensory modality, the shapes can be extracted from range data, using a classification based on local surface shape. With descriptions of both model and scene features from this vocabulary, model matching is more efficient, because the rich shape vocabulary reduces the combinatorial generation of hypotheses. With a set of model-to-data correspondences, accurate three dimensional model location is possible. Results for each stage of the process are shown.

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