The Real-Time Look-Ahead NURBS Curve Interpolation Algorithm

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

look-ahead nurbs-ph interpolators for high speed cnc milling

various methods for parametric interpolation of nurbs curves have been proposed in the past. however, the errors caused by the approximate nature of the nurbs interpolator were rarely taken into account. this paper proposes an integrated look-ahead algorithm for parametric interpolation along nurbs curves. the algorithm interpolates the sharp corners on the curve with the pythagorean-hodograph ...

متن کامل

A look-ahead Schur Algorithm

The classical Schur algorithm computes the LDL T factorization of a symmetric Toeplitz matrix in O(n 2) operations, but requires that all the principal minors of the matrix be nonsingular. Look-ahead schemes have been proposed to deal with matrices that have exactly singular principal minors 9], 11]. Unfortunately, these algorithms cannot be extended to matrices that have ill-conditioned princi...

متن کامل

Real-time MPEG video coding with information look-ahead

jlknmpo m knqprnm snmpmpt u tnvpo mpqpw u tnx y9qpo znmp{}|nmpy9qptn|nw { ~8|nmprnmp ~n€ y9~no mWmp  mpvp{ u rnmWw vpknmpy9mpw} ~no-qp€n€n ‚nu tnx ƒ…„g†l‡ rnu |nmp~ vp~n|nu tnx w { qptn|nqpo |ˆ{ ~ˆy9mpmp{0{ knm‰vpknqp  mptnxnmpw  o ~nyŠ{ knm‰mpy9mpo xnu tnx qp€n€n u vpqp{ u ~ntnw ‹Œ m9€no mpw mptn{JqYo mpqp { u y9mYƒ…„g†l‡Žrnu |nmp~vp~n|nu tnx w ‚nw { mpy‰‘u { k u tn ~no y9qp{ u ~...

متن کامل

Coordinated look-ahead scheduling for real-time traffic signal control

We take an agent-based approach to real-time traffic signal control based on coordinated look-ahead scheduling. At each decision point, each agent constructs a schedule that optimizes movement of the currently approaching traffic through its intersection. For strengthening its local view, each agent queries the scheduled outflows from its direct upstream neighbors to obtain an optimistic observ...

متن کامل

A look-ahead command generator with control over trajectory and chord error for NURBS curve with unknown arc length

There are currently no analytical methods available which determine the exact arc length for NURBS curves and for this reason, a smooth feedrate profilewith desired trajectory cannot be achieved. Numerical methods used to calculate the arc length are time-consuming processeswhichmake generating a feedrate profile with desired accelerations difficult in real-time. This paper introduces a look-ah...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Advanced Engineering Forum

سال: 2011

ISSN: 2234-991X

DOI: 10.4028/www.scientific.net/aef.2-3.523