منابع مشابه
Non-uniform recursive Doo-Sabin surfaces
This paper presents a generalization of Catmull-Clark-variant Doo-Sabin surfaces and non-uniform biquadratic B-spline surfaces called NURDSes (Non-Uniform Recursive Doo-Sabin Surfaces). One step of NURDS refinement can be factored into one non-uniform linear subdivision step plus one dual step. Compared to the prior non-uniform Doo-Sabin surfaces (i.e., quadratic NURSSes), NURDSes are convergen...
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A new technique for the reconstruction of a smooth surface from a set of 3D data points is presented. The reconstructed surface is represented by an everywhere Ccontinuous subdivision surface which interpolates all the given data points. The new technique consists of two major steps. First, an ef£cient surface reconstruction method is applied to produce a polyhedral approximation to the given d...
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We have shown how to construct multiresolution structures for reversing subdivision rules using global least squares models 16. As a result, semiorthogonal wavelet systems have also been generated. To construct a multiresolution surface of an arbitrary topology, however, biorthogonal wavelets are needed. In 1 we introduced local least squares models for reversing subdivision rules to construct ...
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Subdivision surface method is a series of iterative operation adopts a certain subdivision formula for an initial grid, obtains the smooth limits surface finally, and can dispose any arbitrary complex topology grid. At present most of the subdivision algorithm are 1-4 subdivisions and as the number of subdivision increase, the grid grow so toorapid in the number of patch that it is difficult fo...
متن کاملSeung - Hun Kim , Kye - Hoon Jeon , Byoung - Doo Kang and Il - Kyun Jung Object Detection based Weighted - Center Surround Difference
Intelligent traffic surveillance technology is an issue in the field of traffic data analysis. Therefore, we need the technology to detect moving objects in real-time while there are variations in background and natural light. In this paper, we proposed a Weighted-Center Surround Difference method for object detection in outdoor environments. The proposed system detects objects using the salien...
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ژورنال
عنوان ژورنال: Journal of Functional Programming
سال: 2020
ISSN: 0956-7968,1469-7653
DOI: 10.1017/s0956796820000039