✦ LIBER ✦

Curve and Surface Generation and Refinement Based on a High Speed Derivative Algorithm

✍ Scribed by P.V. Sankar; M.J. Silbermann; L.A. Ferrari

Publisher: Elsevier Science
Year: 1994
Weight: 376 KB
Volume: 56
Category: Article
ISSN: 1049-9652
DOI: 10.1006/cgip.1994.1008

No coin nor oath required. For personal study only.

✦ Synopsis

We propose an efficient algorithm for the refinement of curves and surfaces using simple knot B-splines. We develop a high speed algorithm for the computation of the (r) th derivative of an (r) th order spline and demonstrate that the inverse of this algorithm leads to an efficient refinement algorithm which is an order of magnitude faster than the well known Oslo algorithm. We show how the high speed derivative algorithm can also be used to directly generate spline curves and surfaces much more efficiently than linear combination algorithms and forward differencing.

c 1993 Academic Press, Inc.

📜 SIMILAR VOLUMES

A PRESSURE-BASED ALGORITHM FOR HIGH-SPEE

A PRESSURE-BASED ALGORITHM FOR HIGH-SPEED TURBOMACHINERY FLOWS

✍ E. S. Politis; K. C. Giannakoglou 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB 👁 2 views

The steady state Navier±Stokes equations are solved in transonic ¯ows using an elliptic formulation. A segregated solution algorithm is established in which the pressure correction equation is utilized to enforce the divergence-free mass ¯ux constraint. The momentum equations are solved in terms of

Modeling of a high-speed polarization co

Modeling of a high-speed polarization controller based on a vertical-cavity surface-emitting laser

✍ Koichi Hasebe; Yutaka Onishi; Fumio Koyama 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 977 KB

A novel algorithm for high sensitivity i

A novel algorithm for high sensitivity in measuring surface variation based on volume holography

✍ Ching-Cherng Sun; Chih-Yuan Hsu; Wei-Chia Su; Yuh Ouyang; Jenq-Yang Chang 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 113 KB

## Abstract A novel design for the precise measurement of surface variation based on volume holography is proposed. The volume hologram is a spatial filter, which records the index grating corresponding to the interference fringes by a plane wave and a divergent spherical wave. In the measuring pro

CAESAR: A New Conformer Generation Algor

CAESAR: A New Conformer Generation Algorithm Based on Recursive Buildup and Local Rotational Symmetry Consideration.

✍ Jiabo Li; Tedman Ehlers; Jon Sutter; Shikha Varma-O'Brien; Johannes Kirchmair 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 11 KB

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

A technique for high-speed digital data

A technique for high-speed digital data transfer based on crosstalk

✍ Hideki Osaka; Yukata Uematsu; Yasunori Sakisaka; Hiroaki Ikeda 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 968 KB

High-performance speed control based on

High-performance speed control based on an instantaneous speed observer considering the characteristics of a dc chopper in a low speed range

✍ Kiyoshi Ohishi; Yoshihiro Nakamura; Yoshihisa Hojo; Hirokazu Kobayashi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 351 KB 👁 2 views

This paper proposes a new high-performance speed control method for wide speed range, which is based on instantaneous speed observer considering the characteristics of dc chopper. In order to regulate a motor speed for wide speed reference including a very low speed range, this paper designs the ins