H Zou… - Jisuanji Yingyong yu Ruanjian, 2011 - csa.com Contour line is an important tool in spatial data analysis and has been applied in various projects. An algorithm of drawing contour line based on triangular block stitching model is presented in this article, which uses the classical algorithm thought of dividing and ruling as the ...
HE Huai-qing… - Journal of Computer Applications, 2011 - en.cnki.com.cn By analyzing the principle and the existing problems in the ray method and the extreme coordinate value method,the existing algorithms which determined contour direction were simplified.Then an improved algorithm on the contour line position relation was proposed combining the ... Related articles - Cached
J Bar-Sagi - US Patent 7,925,052, 2011 - Google Patents ...Contourline deviations in a series of images of a far object are evaluated by performing a spatial discrete fourier transform (DFT) on deviations within each image, and subsequently a time discrete fourier transform (DFT) on the Fourier coefficients obtained by the spatial DFT, to ... Related articles - All 3 versions
[PDF] from uni-stuttgart.deHJ Tiziani - 2011 - elib.uni-stuttgart.de ... For A, = 520,83 nm and A~= 530,87 nm contourline separations of 13,9 ~m are obtained as can be seen from fig. ... pig. " Result of a quasi real time con- touring of a coin by using ~l ~ 520,83 nm and >"2 - 530,87 nm leading to a contourline separation of 13,9 um o.od, lOst' !Wod ... Cited by 13 - Related articles - All 5 versions
A Kirsch, F Jetzek - US Patent 7,903,862, 2011 - Google Patents ... Springer-Verlag 2003]. A known method for calculating local gradients in a dis- crete space is the use of an isosceles triangle that is moved along the contourline to be analyzed. The commensurate legs are indicated by the vectors a and b in FIG. ... Related articles - All 4 versions
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