Inspection of surface defects using optimal FIR filters

Research output: Journal article publicationConference articleAcademic researchpeer-review

14 Citations (Scopus)


A new method of surface inspection for the textured materials is investigated. The linear FIR filters that offer optimal energy separation between the defect and defect-free regions of texture have been utilized. Performance of different feature separation criterion with reference to fabric defects has been evaluated. The issues relating to the design of optimal filters for supervised and unsupervised web inspection are discussed. A general web inspection system based on the optimal filters is proposed. The experiments on this new approach have yielded excellent results. The on-line computational simplicity using the proposed scheme confirms the usefulness of the approach for industrial inspection.
Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Publication statusPublished - 25 Sept 2003
Externally publishedYes
Event2003 IEEE International Conference on Accoustics, Speech, and Signal Processing - Hong Kong, Hong Kong
Duration: 6 Apr 200310 Apr 2003

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics


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