Line segmentation for interferograms of continuously deforming
نویسندگان
چکیده
A new robust and fast method for non-interactive line segmentation of interferograms is proposed. Fringe contours are represented as a set of polygons using a new technique for contour approximation. The method has been developed for application in interferometry with continuously deforming objects. Its application to real-time holographic interferometry in nondestructive testing is shown.
منابع مشابه
اکستروژن سه بعدی به روش میدان خطوط لغزش
Many metal forming problems have been solved using the slip line field method but all of them have either been two-dimensional (plane strain or plain stress) or axisymmetric problems. In this paper a procedure has been proposed by which the slip line field solution to three dimensional problems of metal forming becomes possible. For this purpose the extrusion of shaped sections has been taken a...
متن کاملA Study to Improve the Response in Email Campaigning by Comparing Data Mining Segmentation Approaches in Aditi Technologies
Email marketing is increasingly recognized as an effective Internet marketing tool. In this study, a questionnaire is constructed and distributed to a sample of 146 prospects of Aditi Technologies to find the factors associated with higher response rates. The collected data is analyzed using Factor Analysis and the 11 factors, From Line, Subject Line, Personalization of the subject line, Timing...
متن کاملOn Approximate Geodesic-Distance Queries amid Deforming Point Clouds
We propose data structures for answering a geodesic-distance query between two query points in a two-dimensional or three-dimensional dynamic environment, in which obstacles are deforming continuously. Each obstacle in the environment is modeled as the convex hull of a continuously deforming point cloud. The key to our approach is to avoid maintaining the convex hull of each point cloud explici...
متن کاملTopographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching
The methodology for building deforming regions into global plate reconstructions builds on the continuously closing plates framework described by Gurnis et al. (2012). Plates are defined within the open-source software GPlates (Boyden et al., 2011) by building polygons from a series of lines defining plate boundaries. The lines can move independently, so that the geometry of plate polygons cont...
متن کاملThree-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements (displacements in the x- and y-direction) and one out-of-plane displacement (displacement in the z-direction), respectively. One color CCD camera is e...
متن کامل