6533b7d4fe1ef96bd1262a05
RESEARCH PRODUCT
Review of RGB photoelasticity
Augusto AjovalasitGiovanni PetrucciMichele Scafidisubject
PhotoelasticityComputer sciencebusiness.industryMechanical EngineeringCombined useImage acquisition and elaborationImage processingRGB photoelasticity; Image acquisition and elaboration; Experimental mechanicsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsRGB photoelasticitySettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineLight sourceExperimental mechanicsComputer graphics (images)Lookup tableWhite lightCalibrationRGB color modelComputer visionArtificial intelligenceElectrical and Electronic EngineeringbusinessSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industrialedescription
Abstract Automatic methods of photoelasticity have had a significant progress with the development of automatic acquisition and image processing methods. This article concerns RGB photoelasticity, which allows the determination of the photoelastic retardation using, usually, a single acquisition of the isochromatic fringes in white light by a colour camera. In particular, the article presents an overview of the main characteristics of RGB photoelasticity that is influence of the quarter-wave plate error, number of acquisitions, type of light source, determination of low and high fringe orders, methods for searching the retardation, scanning procedures, calibration on a material different from that under test, combined use of the RGB and phase shifting methods. A short section on the applications of RGB photoelasticity completes the article.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-05-01 |