Novel method for increasing accuracy of projection moiré contouring of large surfaces Article Swipe
Related Concepts
Optics
Moiré pattern
Structured-light 3D scanner
Projection (relational algebra)
Contouring
Pixel
Plane (geometry)
Displacement (psychology)
Sensitivity (control systems)
Projection method
Iterative method
Computer science
Algorithm
Mathematics
Physics
Geometry
Computer graphics (images)
Scanner
Psychology
Grating
Psychotherapist
Engineering
Electronic engineering
Ying Tang
,
Jun Yao
,
Jubing Chen
·
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1364/oe.24.021190
· OA: W2512043809
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1364/oe.24.021190
· OA: W2512043809
Projection moiré is a high resolution, non-contact, full field method for measuring out-of-plane displacements. Here, we develop a novel model for projection moiré system and derive a universal formula expressing the relation between phase variation and out-of-plane displacement. In order to eliminate the error caused by mismatching of pixels and changing of sensitivity coefficient, an iterative algorithm is presented which expands measurements to the magnitude of depth of field. Computer simulations and actual experiments prove the validity of the proposed method.
Related Topics
Finding more related topics…