The regular polygon detector
2010 (English)In: Pattern Recognition, ISSN 0031-3203, E-ISSN 1873-5142, Vol. 43, no 3, 592-602 p.Article in journal (Refereed) Published
This paper describes a robust regular polygon detector. Given image edges, we derive the a posteriori probability for a mixture of regular polygons, and thus the probability density function for the appearance of a set of regular polygons. Likely regular polygons can be isolated quickly by discretising and collapsing the search space into three dimensions. We derive a complete formulation for efficiently recovering the remaining dimensions using maximum likelihood at the locations of the most likely polygons. Results show robustness to noise, the ability to find and differentiate different shape types, and to perform real-time sign detection for driver assistance.
Place, publisher, year, edition, pages
2010. Vol. 43, no 3, 592-602 p.
Regular polygon detection, Shape detection, Sign recognition
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-29082DOI: 10.1016/j.patcog.2009.09.008ISI: 000273094100006ScopusID: 2-s2.0-70449720555OAI: oai:DiVA.org:kth-29082DiVA: diva2:391743
FunderEU, FP7, Seventh Framework Programme, FP7-ICF-215181
QC 201101252011-01-252011-01-252011-01-25Bibliographically approved