Abstract

A model-based recognition procedure for two-dimensional objects in different postures and occluded instances is proposed. Object description is based on a new shape decomposition technique that can take advantage from both geometrical and topological properties. A relational graph is constructed and the matching task is formulated as an optimization problem, quadratic assignment. The approach taken to solve the correspondence problem employs a Hopfield neural network. This leads to a reasonable computational time and a high degree of fault tolerance as shown in several experimental results.

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