Computing the Aspect Graph for Line Drawings of Polyhedral Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
Efficiently Computing and Representing Aspect Graphs of Polyhedral Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
On Computing Structural Changes in Evolving Surfaces and their Appearance
International Journal of Computer Vision
Shape Models and Object Recognition
Shape, Contour and Grouping in Computer Vision
A Similarity-Based Aspect-Graph Approach to 3D Object Recognition
International Journal of Computer Vision
The Visual Hull of Smooth Curved Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
The visual hull of piecewise smooth objects
Computer Vision and Image Understanding
A new 3-D model retrieval system based on aspect-transition descriptor
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part IV
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We address the problem of computing the aspect graph of a polyhedral object observed by an orthographic camera with limited spatial resolution, such that two image points separated by a distance smaller than a preset threshold cannot be resolved. Under this model, views that would differ under normal orthographic projection may become equivalent, while "accidental" views may occur over finite areas of the view space. We present a catalogue of visual events for polyhedral objects and give an algorithm for computing the aspect graph and enumerating all qualitatively different aspects. The algorithm has been fully implemented and results are presented.