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Proceedings Paper

Virtual moire interference approach for an industrial safety monitoring system
Author(s): Rida Hamza; Darren Cofer
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Paper Abstract

The objective of this work was to determine the feasibility and reliability of using the moire interference phenomenon as a means to detect human intrusion within a monitored zone. We applied moire interference principle for use in low-cost, safety-critical industrial monitoring applications. Moire interference is usually applied in the context of industrial applications for shape measurements. In this framework, we show how we can apply this concept to build a new safety product that detects human intrusion into dangerous areas on the factory floor. We demonstrate that a solution based on moire interference offers the potential for detection true 3D objects while preventing false alarms due to lighting variations or shadows and simplifying the image processing software. In addition, our prosed approach is advantageous in the product certification process because it is an active detection method.

Paper Details

Date Published: 3 October 2001
PDF: 9 pages
Proc. SPIE 4399, Optical Measurement Systems for Industrial Inspection II: Applications in Production Engineering, (3 October 2001); doi: 10.1117/12.445581
Show Author Affiliations
Rida Hamza, Honeywell Labs. (United States)
Darren Cofer, Honeywell Labs. (United States)


Published in SPIE Proceedings Vol. 4399:
Optical Measurement Systems for Industrial Inspection II: Applications in Production Engineering

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