Restructured Eigenfilter Matching for Novelty Detection in Random Textures | Zendy

Amirhassan Monadjemi | Zendy; Majid Mirmehdi | Zendy; Bjorn Thomas | Zendy

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Restructured Eigenfilter Matching for Novelty Detection in Random Textures

Author(s) -

Amirhassan Monadjemi,

Majid Mirmehdi,

Bjorn Thomas

Publication year - 2004

Publication title -

citeseer x (the pennsylvania state university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.5244/c.18.66

Subject(s) - novelty , artificial intelligence , computer science , novelty detection , matching (statistics) , pattern recognition (psychology) , computer vision , texture (cosmology) , rotation (mathematics) , algorithm , mathematics , image (mathematics) , statistics , philosophy , theology

A new eigenfilter-based novelty detection approach to find abnormalities in random textures is presented. The proposed algorithm reconstructs a given texture twice using a subset of its own eigenfilter bank and a subset of a reference (template) eigenfilter bank, and measures the reconstruction error as the level of novelty. We then present an improved reconstruction generated by structurally matched eigenfilters through rotation, negation, and mirroring. We apply the method to the detection of defects in textured ceramic tiles. The method is over 90% accurate, and is fast and amenable to implementation on a production line.

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