Analyzing perspective line drawings using hypothesis based reasoning

One of the important issues in the middle levels of computer vision is how world knowledge should be gradually inserted into the reasoning process. In this dissertation, we develop a technique which uses hypothesis based reasoning to reason about perspective line drawings using only the constraints supplied by the equations of perspective geometry. We show that the problem is NP complete, and that it can be solved using modular inference engines for propagating constraints over the set of world level entities. We also show that theorem proving techniques, with their attendant complexity, are not necessary because the real valued attributes of the world can be computed in closed form based only on the spatial relationships between world entities and measurements from the given image.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Department dc:contributor.department

Computer Science and Applications

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1984

Author dc:creator

• Mulgaonkar, Prasanna Govind

Chair dc:contributor.committeechair

• Shapiro, Linda G.

Committee members dc:contributor.committeemember

• Haralick, Robert M.
• Roach, John W.
• Ehrich, Roger W.
• Brown, Ezra A.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/87693

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/87693