نتایج جستجو برای: cubic bezier curve

تعداد نتایج: 161629  

2010
Ferdous A. Sohel Gour C. Karmakar Laurence S. Dooley John Arkinstall

Gour C. Karmakar, Laurence S. Dooley, and John Arkinstall Bezier curves (BC) have become fundamental tools in many challenging and varied applications, ranging from computer aided geometric design to generic object shape descriptors. A major limitation of the classical Bezier curve however, is that only global information about its control points (CP) is considered, so there can often be a larg...

Journal: :Communications for Statistical Applications and Methods 2014

Journal: :SN computer science 2021

Abstract Splines are one of the main methods mathematically representing complicated shapes, which have become primary technique in fields Computer Graphics (CG) and Computer-Aided Geometric Design (CAGD) for modeling complex surfaces. Among all, Bézier Catmull–Rom splines most common sub-fields engineering. In this paper, we focus on conversion between cubic curve segments, rather than going t...

A near-optimal midcourse trajectory shaping guidance algorithm is proposed for both air and ballistic target engagement mission attributes for generic long range interceptor missile. This guidance methodology is based on the maximum final velocity as the objective function and maximum permissible flight altitude as the in-flight state constraint as well as the head-on orientation as the termina...

Journal: :Comput. J. 2011
Oliviu Ghica Goce Trajcevski Peter Scheuermann Nikolay Valtchanov Zachary S. Bischof

We address the problem of extending the lifetime of wireless sensor networks using multi-path routing based on a family of flexible routes with soft quality of service guarantees in terms of the packets’ delivery latency. We introduce a methodology based on Bezier curves as guiding trajectories in the routing process and we address the balancing of the workload among neighboring nodes. An added...

Journal: :CoRR 2009
Vani Perumal Jagannathan Ramaswamy

Naturally, with the mounting application of biometric systems, there arises a difficulty in storing and handling those acquired biometric data. Fingerprint recognition has been recognized as one of the most mature and established technique among all the biometrics systems. In recent times, with fingerprint recognition receiving increasingly more attention the amount of fingerprints collected ha...

2010
F. A. Sohel G. C. Karmakar L. S. Dooley M. Bennamoun

Existing Bezier curve-based shape description techniques primarily focus upon determining a set of pertinent control points (CP) to represent a particular shape contour. While many different approaches have been proposed, none adequately consider domain-specific information about the shape contour like its gradualness and sharpness, in the CP generation process which can potentially result in l...

Journal: :CoRR 2012
Ji Li Thomas J. Peters John A. Roulier

Properties of a parametric curve in R 3 are often determined by analysis of its piecewise linear (PL) approximation. For Bézier curves, there are standard algorithms, known as subdivision, that recursively create PL curves that converge to the curve in distance. The exterior angles of PL curves under subdivision are shown to converge to 0 at the rate of O(1 2 i), where i is the number of subdiv...

2006
Chandan Singh Ekta Walia

The use of Bezier curves and Bezier triangles has been extensively explored in the field of computer graphics. The purpose of this paper is to show that Bezier triangles and curves can be used for reducing the cost of Biquadratic Phong shading. A shading algorithm has been proposed which uses quadratic Bezier triangle’s blending functions for performing quadratic interpolation of normal vector ...

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