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Bibliographic record number: 211875


Authors: Hocenski, Željko; Rimac-Drlje, Snježana; Keser, Tomislav
Title: Visual Diagnostics Based on Image Wavelet Transform
Source: Proceedings of the 9th European Conference on Power Electronics and Applications (EPE2001) / Weiss, Herbert (ed). - Brussels : EPE Association , 2001. 627-631.
Meeting: European Conference on Power Electronics and Applications (9 ; 2001)
Location and date: Grac, Austrija, 27.-29.08.2001
Keywords: diagnostics; industrial applications; new devices; software; system engineering
The image processing described in this paper is used for visual quality control in ceramic tile production. The tiles surface quality is described by the surface defects. The described image processing is based on the discrete wavelet transform method. The diagnostic algorithm is described. It is based on comparing of the wavelet coefficients of the original image without surface defects and the real images of ceramic tiles. The method is verified by using the artifical defects on the image and sensitivity testing on failure contrast and size is done.The algorithm is evaluated experimentaly using the real tile image. The analysis of the detection capabilities and sensitivity expressed in nondetected failures and false proclaimed defect is done also. Optimal connection between the segment size and DSL for each type of surface failure could be used to make efficient system for quality control and failure classification in automated production process.
Type of meeting: Poster
Type of presentation in a journal: Full-text (1500 words and more)
Type of peer-review: International peer-review
Project / theme: 0165103
Original language: ENG
Category: Znanstveni
Research fields:
Electrical engineering,Computer science
Full paper text: 211875.PP00761.pdf

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