Results 271 to 280 of about 3,721,565 (340)

Contour-Based Position Lines

Journal of Navigation, 1967
Contour charts are of great value ‘providing’, as Hughes says, ‘the navigator with a quick and sure means of comparing the echo sound record he has just made with the variations in contour and so enabling him actually to plot his line of position by soundings’.
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Wave Sector Dependent Contour Lines

Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium, 2007
This paper is concerned with estimating the response value corresponding to given annual exceedance probability. In principle, this requires that a full long term analysis is executed. For a linear response this can easily be done. For a non-linear response quantity however, where time domain simulations are required in order to obtain the short term ...
Gro Sagli Baarholm, Sverre Haver, Carl M. Larsen   +2 more
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Fast Contour Line Extraction Algorithm Observing Line Continuation

SPIE Proceedings, 1989
This paper describes a new contour line extraction algorithm that yields one-pixel-wide contour lines with excellent continuity and low noise from gray-scale images. Conventional methods are extremely slow because the line thinning process, needed after line extraction, is iterative.
Takashi Nishimura, Tsuyoshi Fujimoto
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Incremental Contour Fusion Based on Line/Line Topological Relation

2010 International Conference on Multimedia Technology, 2010
Incremental contour fusion plays a very important role in updating topographic database. The most popular fusion methods in current use depend on manual work basically, in which it results in large workload, low efficiency and it can't ensure the quality of the spatial data.
Han-fa Xing, Bing-Liang Cui, Xiao-guang Zhou   +2 more
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An Experiment with Contour Lines

The Cartographic Journal, 1979
AbstractMap readers are generally faster and more accurate in interpreting relief from layer tint maps than from contour maps. This paper discusses methods of improving contour maps and reports an experiment where conventional contours were compared with contour lines elaborated to produce a 'wedding cake' effect, but this elaboration did not improve ...
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Contours of Strong Fraunhofer Lines

Publications of the Astronomical Society of Japan, 1954
Abstract Characteristic features of the inner wing contours of very strong Fraunhofer lines have been investigated. At the center of the sun’s disc, the observed contours show a hump at the inner wing. This hump appears in the theoretical non-coherent contour.
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Illusory Contours and the Ends of Lines

Perception, 1978
A series of lines pointing towards a central region induces an illusory brightness effect that is systematically related to the angle formed by the lines and the contour of the illusory brightness. As the lines veer to become tangents the illusory brightness decreases.
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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

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

Application of the slicing technique to extract the contour feature line

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