0000000000520067

AUTHOR

Halima Bubaker-isheil

showing 2 related works from this author

Simple Large Scale 3D scanner

2019

Abstract A new 3D measuring device for large dimensions is proposed. It is based on the combination of a simple system consisting of a smartphone that measures in stereo a near field with a robotic total station that tracks the position of the camera on a far field. The calibration method is described and the metrological properties obtained make it possible to measure objects of several tens or even hundreds of meters long with errors of the order of a millimeter. This makes it possible to consider the use of the system for many industrial applications

0209 industrial biotechnologyScannerScale (ratio)[SPI] Engineering Sciences [physics]business.industryComputer scienceTotal stationMeasure (physics)Near and far field02 engineering and technology010501 environmental sciences01 natural sciencesMetrology[SPI]Engineering Sciences [physics]020901 industrial engineering & automationPosition (vector)CalibrationGeneral Earth and Planetary SciencesComputer visionArtificial intelligencebusinessComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciencesGeneral Environmental ScienceProcedia CIRP
researchProduct

3D displacement field measurement with correlation based on the micro-geometrical surface texture

2011

Image correlation methods are widely used in experimental mechanics to obtain displacement field measurements. Currently, these methods are applied using digital images of the initial and deformed surfaces sprayed with black or white paint. Speckle patterns are then captured and the correlation is performed with a high degree of accuracy to an order of 0.01 pixels. In 3D, however, stereo-correlation leads to a lower degree of accuracy. Correlation techniques are based on the search for a sub-image (or pattern) displacement field. The work presented in this paper introduces a new correlation-based approach for 3D displacement field measurement that uses an additional 3D laser scanner and a C…

Digital image correlationPixelLaser scanningWavinessbusiness.industryComputer scienceMechanical EngineeringAcousticsParticle displacementAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsSpeckle patternDigital imageDisplacement fieldComputer visionArtificial intelligenceElectrical and Electronic EngineeringbusinessOptics and Lasers in Engineering
researchProduct