Přístupnostní navigace
E-application
Search Search Close
Publication detail
HORÁK, K. KALOVÁ, I.
Original Title
Pattern Recognition By Use Of Functions Of Invariants
Type
conference paper
Language
English
Original Abstract
Visual system is the basic tool for non-contact inspection in industries. Such system usually has to detect defects and reject faulty products automatically. This article deals with autonomous visual system for glass bottle inspection, which has to detect non-homogenous regions in ROI in images. Additional system is able to distinguish between regions belongs to defect from regions belongs to manmade patterns, so that products can be made in high quality and cost-effective way. Snag is that synthetic patterns (like a word-sign) and defects (dirt, crack etc.) have similar image characteristics, hence it is difficult to recognize between them. In order to solve mentioned task we introduce novel method based on moment invariants. Each detected non-homogenous region is wilfully modified by so called "circle degradation" algorithm in several steps. Moment invariants corresponding to modified regions are then computed and subsequently functions of these invariants are created. On the basis of these functions, both synthetic patterns and defects can be recognized in a usual classification way.
Keywords
recognition, pattern, moments, invariants
Authors
HORÁK, K.; KALOVÁ, I.
RIV year
2008
Released
23. 10. 2008
Publisher
DAAAM International
Location
Vienna, Austria 2008
ISBN
978-3-901509-68-1
Book
Annals of DAAAM for 2008 & Proceedings of the 19th International DAAAM Symposium
Pages from
605
Pages to
609
Pages count
2
BibTex
@inproceedings{BUT32578, author="Karel {Horák} and Ilona {Janáková}", title="Pattern Recognition By Use Of Functions Of Invariants", booktitle="Annals of DAAAM for 2008 & Proceedings of the 19th International DAAAM Symposium", year="2008", pages="605--609", publisher="DAAAM International", address="Vienna, Austria 2008", isbn="978-3-901509-68-1" }