The authors address the problem of computing the exact aspect graph of a polyhedral object observed by an orthographic camera with finite resolution, such that two image points separated by a distance smaller than a preset threshold cannot be resolved. Under this projection model, views that would be different under normal orthographic projection may become equivalent, while "accidental" views may occur over finite areas of the view space. They 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.
|Title of host publication||Proceedings - IEEE Workshop on Qualitative Vision, WQV 1993|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||11|
|ISBN (Electronic)||0818636920, 9780818636929|
|State||Published - 1993|
|Event||1993 IEEE Workshop on Qualitative Vision, WQV 1993 - New York, United States|
Duration: 14 Jun 1993 → …
|Name||Proceedings - IEEE Workshop on Qualitative Vision, WQV 1993|
|Conference||1993 IEEE Workshop on Qualitative Vision, WQV 1993|
|Period||14/06/93 → …|
Bibliographical notePublisher Copyright:
© 1993 IEEE.
ASJC Scopus subject areas
- Computer Vision and Pattern Recognition