Finite-resolution aspect graphs of polyhedral objects

I. Shimshoni; J. Ponce

doi:10.1109/34.588001

Finite-resolution aspect graphs of polyhedral objects

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	315-327
Number of pages	13
Journal	IEEE Transactions on Pattern Analysis and Machine Intelligence
Volume	19
Issue number	4
DOIs	https://doi.org/10.1109/34.588001
State	Published - 1997
Externally published	Yes

Keywords

3D object modeling aspect graphs
Computer vision
Image resolution

ASJC Scopus subject areas

Software
Computer Vision and Pattern Recognition
Computational Theory and Mathematics
Artificial Intelligence
Applied Mathematics

Access to Document

10.1109/34.588001

Cite this

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AB - 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.

KW - 3D object modeling aspect graphs

KW - Computer vision

KW - Image resolution

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EP - 327

JO - IEEE Transactions on Pattern Analysis and Machine Intelligence

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ER -

Finite-resolution aspect graphs of polyhedral objects

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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