Measurement of Free-Form Curved Surfaces Using Laser Triangulation
نویسندگان
چکیده
منابع مشابه
Delaunay Triangulation for Curved Surfaces
Surface triangular meshing plays an important role in the areas of computer graphics and engineering analysis. Traditionally, surface meshing is achieved by mapping meshes created in 2D parametric space onto surfaces. Care is taken in generating meshes in the parametric space and mapping them to surfaces because the transformation of geometry from the parameter space to the real space could be ...
متن کاملMeasurement of spinal sagittal curvatures using the laser triangulation method.
The purpose of the first part of the study was to establish the variability of repeated measurements in different measuring conditions. In the second part, we performed in a large number of patients, a measurement of thoracic kyphosis and lumbar lordosis and compared them to age, gender, and level of nourishment. In the first part, measurements were performed on a plastic model of the back of a...
متن کاملUncertainty Estimation for Laser Triangulation Height Measurement
According to the Guide to the Expression of Uncertainty in Measurement, measurement uncertainty in quality control is especially important, as the measured value determines either the acceptance or rejection of a product. As the coordinate measuring machines are not capable of 100% dimensional quality control, the use of optical methods is growing. The problem here is still the lack of methods ...
متن کاملMatching free-form surfaces
In this work, the matching problem between two free-form parametric surfaces, S 0 (u, v) and S 1 (u, v), has been considered in the context of a "rst stage of the metamorphosis process, which is de"ned as gradual and continuous transformation of one key shape into another. A method is presented to approximate the two reparametrization functions, r(u, v) and t(u, v), via a discrete sampled set o...
متن کاملMachining Free-Form Surfaces
This paper presents an analytical method for planning an efficient tool-path in machining free-form surfaces on 3-axis milling machines. This new approach uses a nonconstant offset of the previous tool-path, which guarantees the cutter moving in an unmachined area of the part surface and without redundant machining. The method comprises three steps: (1) the calculation of the tool-path interval...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sensors
سال: 2018
ISSN: 1424-8220
DOI: 10.3390/s18103527