Results 331 to 340 of about 4,108,186 (369)

DEM generation by contour line dilation

Computers & Geosciences, 1999
Abstract A method is developed to generate digital elevation models by means of the dilation of contour lines stored in a raster grid. An iterative procedure produces an extension of contour lines by applying alternative four-connected and eight-connected erosions of the background until the produced surfaces become contiguous.
Román Alvarez, Hind Taud, Jean-François Parrot   +2 more
openaire   +2 more sources

Contour lines of the optical functions for solids

Optics & Laser Technology, 1993
Abstract The well-known equations for the optical functions of reflectance, transmittance and phase changes on reflection and transmission for a solid material have been rearranged into the form of simple geometric figures in the u, v (n, k) plane. The curves for Fp show a singularity on the n-axis.
openaire   +2 more sources

Study on the microbial community in earthworm and soil under cadmium stress based on contour line analysis

Environmental science and pollution research international, 2019
Yucui Ning, Haoran Zhou, Dongxing Zhou
semanticscholar   +1 more source

VI.—Contour-Lines on Geological Maps

Geological Magazine, 1885
AS one of your reviewers now some years ago criticized unfavourably the method of representing geological structure in maps by contour lines upon a bed of coal or other rock, and as, like him, most geologists are not yet practically familiar with the method, useful though it be, and nobody that might be thought wholly unbiassed has replied in your ...
openaire   +2 more sources

Contour Lines and DEM: Generation and Extraction

2001
Contour lines are, as Digital Elevation Models (DEM), 3D information describing the terrain topography. The aim of this work is to demonstrate how the use of a powerful DEM modeling structure, taking into account both representation characteristics, eases their collaboration for topography representation.
L. Rognant, Jean-Marc Chassery, J. G. Planès, M. Memier   +3 more
openaire   +2 more sources

Size Illusions Caused by Contour Lines

Zeitschrift für Physikalische Chemie, 2006
There is a group of visual illusions which give the impression that straight border lines of a rectangle are bent or that rectangles look wedge shaped. In a simple form, it may be described in the following way: On a white surface area, e.g., an upright rectangle is surrounded by a black border line.
openaire   +1 more source

Optimization Analysis of Initial Sheet Metal Contour Line for High-Strength Boron Steel in Hot Stamping

Strength of Materials, 2016
Z. Zhang, X. Jia, Y. Wang, P. Gao
semanticscholar   +1 more source

Computational Methods for the Representation of Contour Lines

Computer-Aided Civil and Infrastructure Engineering, 1993
Abstract: Various methods exist for the automatic representation of contour plots, frequently used in civil engineering to show, for example, stress distributions in a field or elevations in a survey map. This paper describes some of the contouring methods that influenced the development of algorithms for automatically contouring data specified on ...
openaire   +2 more sources

Least squares pose estimation of cylinder axes from multiple views using contour line features

Annual Conference of the IEEE Industrial Electronics Society, 2015
Mark Becke, T. Schlegl
semanticscholar   +1 more source

Application of the slicing technique to extract the contour feature line

Cluster Computing, 2018
G. He, Jun Yang
semanticscholar   +1 more source