Improving motion-based object detection by incorporating object-specific knowledge
International Journal of Intelligent Information and Database Systems
Combining plane estimation with shape detection for holistic scene understanding
ACIVS'11 Proceedings of the 13th international conference on Advanced concepts for intelligent vision systems
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We describe an appearance-based object recognition system using a keyed, multi-level context representation reminiscent of certain aspects of cubist art. Specifically, we utilize distinctive intermediate-level features, in this case automatically extracted 2D boundary fragments, as keys, which are then verified within a local context, and assembled within a loose global context to evoke an overall percept. This system demonstrates extraordinarly good recognition of a variety of 3D shapes, ranging from sports cars and fighter planes to snakes and lizards with full orthographic invariance. We report the results of large-scale tests, involving over 2000 separate test images, that evaluate performance with increasing number of items in the database, in the presence of clutter, background change, and occlusion, and also the results of some generic classification experiments where the system is tested on objects never previously seen or modelled. To our knowledge, the results we report are the best in the literature for full-sphere tests of general shapes with occlusion and clutter resistance.