Automated inspection of textured web materials using real Gabor functions

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Abstract

Quality assurance is the key for increasing competition in the market place. This paper presents a new machine vision based approach for the detection of defects using real Gabor functions. A bank of real Gabor functions, followed by a nonlinear function, is used to sample texture features at different scales. These texture features are compared with those from defect-free (reference) image, and a set of feature difference arrays are created. These are used to generate a combined image output using image fusion. This combined image output is used to obtain a binary image of defects using calibration. This paper also details a new method for automated selection of the center frequency of Gabor function using spectral analysis. Experimental results have confirmed the usefulness of the proposed approach for the automated inspection of textile webs.
Original languageEnglish
Pages (from-to)298-302
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4875
Issue number1
DOIs
Publication statusPublished - 1 Jan 2002
Externally publishedYes
EventSecond International Conference on Image and Graphics - Hefei, China
Duration: 16 Aug 200218 Aug 2002

Keywords

  • Computer vision
  • Defect detection
  • Industrial automation
  • Quality assurance
  • Real Gabor function

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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