Dissertation/Thesis
Electronic Letters on Computer Vision and Image Analysis 5(4):47-63, 2006 Fast 3D-Vision System to Classify Metallic Coins by their Embossed Topography
| Τίτλος: | Electronic Letters on Computer Vision and Image Analysis 5(4):47-63, 2006 Fast 3D-Vision System to Classify Metallic Coins by their Embossed Topography |
|---|---|
| Συγγραφείς: | Michael Hossfeld, Weiyi Chu, Markus Adameck Manfred |
| Συνεισφορές: | The Pennsylvania State University CiteSeerX Archives |
| Πηγή: | http://elcvia.cvc.uab.es/public/articles/0504/a2005056-3-art.pdf. |
| Έτος έκδοσης: | 2005 |
| Συλλογή: | CiteSeerX |
| Θεματικοί όροι: | Key Words, Object Recognition, Structural Pattern Analysis, Specular Metallic Surfaces, Three-Color Selective Stereo Gradient Method (Three-Color SSGM |
| Περιγραφή: | This paper presents a security-related machine-vision solution for real-time classification of moving objects with highly reflective metallic surfaces and complex 3D-structures. As an application example of our so called Three-Color Selective Stereo Gradient Method (Three-Color SSGM) a classification system for three main coin denominations of Euro coins is presented. Such coins are quickly moving in a coin validation system. The objective is to decide only from comparison of specially measured and processed 3D-surface information with characteristic topographical data stored in a database whether a coin belongs to one of the reference classes or has to be rejected as a foreign or counterfeit coin. Under illumination from a three-color light emitting diode equipped ring a single image of the moving coin is captured by a digital color camera. Exploiting the spectral properties of the illumination sources, which correspond to the special spectral characteristics of the camera, three independent subimages can be extracted. Comparison between these subimages leads to a discrimination between a coin with real 3D-surface and a counterfeit coin based on a photographic image of a coin of the same type. After the coin has been located and segmented, grey value based rotation and translation invariant features are extracted from a normalized image. In combination with template matching methods, a coin can be classified. Classification results will be reported for the three main coin denominations of Euro coins. |
| Τύπος εγγράφου: | Thesis |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.104.4020 |
| Διαθεσιμότητα: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.104.4020 http://elcvia.cvc.uab.es/public/articles/0504/a2005056-3-art.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Αριθμός Καταχώρησης: | edsbas.452B5FBB |
| Βάση Δεδομένων: | BASE |
καταχωρήστε σχόλιο πρώτοι!