An In-Camera Data Stream Processing System for Defect Detection in Web Inspection Tasks
✍ Scribed by S.Hossain Hajimowlana; Roberto Muscedere; Graham A. Jullien; James W. Roberts
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 520 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1077-2014
No coin nor oath required. For personal study only.
✦ Synopsis
An In-Camera Data Stream Processing System for Defect Detection in Web Inspection Tasks
ne of the aims of industrial machine vision is to develop computer and electronic systems O to replace human vision in quality control of industrial production. Traditionally these systems consist of a line scan camera, host computer, frame grabber and one or more dedicated processing boards. In this paper we discuss the development of a new integrated design environment, developed for real-time defect detection, that eliminates the need for an external frame grabber and other associated host computer peripheral systems. The processing Ž . board contains a reconfigurable field programmable gate array FPGA inside a DALSA CCD camera. The FPGA is directly connected to the video data-stream and outputs data to a low bandwidth output bus. The system is targeted for web inspection but has the potential for broader application areas. We describe and show test results of the in-camera prototype system board and discuss some of the algorithms currently simulated and implemented for web inspection applications.