2009 |
45 | EE | Kimon P. Valavanis,
Paul Y. Oh,
Les A. Piegl:
Guest Editorial for the Special Volume On Unmanned Aircraft Systems (UAS).
Journal of Intelligent and Robotic Systems 54(1-3): 1-2 (2009) |
2008 |
44 | EE | Les A. Piegl,
Khairan Rajab,
Volha Smarodzinana:
Curve interpolation with directional constraints for engineering design.
Eng. Comput. (Lond.) 24(1): 79-85 (2008) |
43 | EE | Les A. Piegl,
Wayne Tiller:
Fitting NURBS spherical patches to measured data.
Eng. Comput. (Lond.) 24(2): 97-106 (2008) |
42 | EE | K. Dalamagkidis,
Kimon P. Valavanis,
Les A. Piegl:
Current Status and Future Perspectives for Unmanned Aircraft System Operations in the US.
Journal of Intelligent and Robotic Systems 52(2): 313-329 (2008) |
2005 |
41 | EE | Les A. Piegl:
Ten challenges in computer-aided design.
Computer-Aided Design 37(4): 461-470 (2005) |
40 | EE | Les A. Piegl:
CAD'04 Special Issue: modeling and geometry representations for CAD.
Computer-Aided Design 37(8): 781 (2005) |
39 | EE | Les A. Piegl:
CAD'04 Special Issue: Product design, integration and manufacturing.
Computer-Aided Design 37(9): 879 (2005) |
38 | EE | Les A. Piegl,
Weiyin Ma,
Wayne Tiller:
An alternative method of curve interpolation.
The Visual Computer 21(1-2): 104-117 (2005) |
2004 |
37 | EE | Les A. Piegl:
Special issue on automated synthesis of human-competitive designs by means of genetic programming.
Computer-Aided Design 36(12): 1279 (2004) |
2003 |
36 | EE | Les A. Piegl,
Wayne Tiller:
Circle approximation using integral B-splines.
Computer-Aided Design 35(6): 601-607 (2003) |
35 | EE | Les A. Piegl,
Wayne Tiller:
Approximating Surfaces of Revolution by Nonrational B-Splines.
IEEE Computer Graphics and Applications 23(3): 46-52 (2003) |
34 | | Les A. Piegl,
Weiyin Ma,
Wayne Tiller:
Surface Fitting to Random Data via Constrained Shaping.
International Journal of Shape Modeling 9(1): 1-20 (2003) |
2002 |
33 | EE | Les A. Piegl,
Wayne Tiller:
Biarc approximation of NURBS curves.
Computer-Aided Design 34(11): 807-814 (2002) |
32 | EE | Les A. Piegl,
Wayne Tiller:
Algorithm for finding all k nearest neighbors.
Computer-Aided Design 34(2): 167-172 (2002) |
31 | EE | Les A. Piegl,
Wayne Tiller:
Data Approximation Using Biarcs.
Eng. Comput. (Lond.) 18(1): 59-65 (2002) |
30 | | Les A. Piegl,
Wayne Tiller:
Fitting Circular Arcs to Measured Data.
International Journal of Shape Modeling 8(1): 1-21 (2002) |
29 | EE | Les A. Piegl,
Wayne Tiller:
Surface skinning revisited.
The Visual Computer 18(4): 273-283 (2002) |
2001 |
28 | EE | Les A. Piegl,
Wayne Tiller:
Parametrization for surface fitting in reverse engineering.
Computer-Aided Design 33(8): 593-603 (2001) |
2000 |
27 | EE | Les A. Piegl,
Wayne Tiller:
Curve Interpolation with Arbitrary End Derivatives.
Eng. Comput. (Lond.) 16(1): 73-79 (2000) |
26 | EE | Les A. Piegl,
Wayne Tiller:
Least-Squares B-Spline Curve Approximation with Arbitary End Derivatives.
Eng. Comput. (Lond.) 16(2): 109-116 (2000) |
25 | EE | Les A. Piegl,
Wayne Tiller:
Reducing Control Points in Surface Interpolation.
IEEE Computer Graphics and Applications 20(5): 70-74 (2000) |
24 | EE | Les A. Piegl,
Wayne Tiller:
Surface approximation to scanned data.
The Visual Computer 16(7): 386-395 (2000) |
1999 |
23 | EE | Les A. Piegl,
Wayne Tiller:
Computing offsets of NURBS curves and surfaces.
Computer-Aided Design 31(2): 147-156 (1999) |
22 | EE | Les A. Piegl,
Wayne Tiller:
Cross-Sectional Design with Boundary Constraints.
Eng. Comput. (Lond.) 15(2): 171-180 (1999) |
21 | EE | Les A. Piegl,
Wayne Tiller:
Filling n-sided regions with NURBS patches.
The Visual Computer 15(2): 77-89 (1999) |
1998 |
20 | EE | Les A. Piegl,
Wayne Tiller:
Computing the derivative of NURBS with respect to a knot.
Computer Aided Geometric Design 15(9): 925-934 (1998) |
19 | EE | Les A. Piegl,
Wayne Tiller:
Geometry-based triangulation of trimmed NURBS surfaces.
Computer-Aided Design 30(1): 11-18 (1998) |
1997 |
18 | EE | Les A. Piegl,
Wayne Tiller:
Symbolic operators for NURBS.
Computer-Aided Design 29(5): 361-368 (1997) |
17 | EE | Jennifer A. Polack-Wahl,
Les A. Piegl,
Marc L. Carter:
Perception of images using cylindrical mapping.
The Visual Computer 13(4): 155-167 (1997) |
1996 |
16 | EE | Les A. Piegl,
Wayne Tiller:
Algorithm for approximate skinning.
Computer-Aided Design 28(9): 699-706 (1996) |
15 | EE | Alok K. Chaturvedi,
Les A. Piegl:
Procedural method for terrain surface interpolation.
Computers & Graphics 20(4): 541-566 (1996) |
1995 |
14 | EE | Les A. Piegl,
Arnaud M. Richard:
Tessellating trimmed surfaces.
Computer-Aided Design 27(1): 16-26 (1995) |
13 | EE | Les A. Piegl,
Wayne Tiller:
Algorithm for degree reduction of B-spline curves.
Computer-Aided Design 27(2): 101-110 (1995) |
1994 |
12 | EE | Les A. Piegl,
Wayne Tiller:
Software-engineering approach to degree elevation of B-spline curves.
Computer-Aided Design 26(1): 17-28 (1994) |
11 | EE | Les A. Piegl:
Editorial.
Computer-Aided Design 26(1): 3-5 (1994) |
10 | | Tsung-Pao Fang,
Les A. Piegl:
Algorithm for constained delaunay triangulation.
The Visual Computer 10(5): 255-265 (1994) |
1993 |
9 | EE | Les A. Piegl,
Arnaud M. Richard:
Algorithm and data structure for triangulating multiply connected polygonal domains.
Computers & Graphics 17(5): 563-574 (1993) |
1992 |
8 | EE | Narayanan Anantakrishnan,
Les A. Piegl:
Integer de Casteljau Algorithm for Rasterizing NURBS Curves.
Comput. Graph. Forum 11(2): 151-162 (1992) |
7 | EE | Les A. Piegl:
An introduction to the curves and surfaces of computer-aided design: Robert C Beach Van Nostrand Reinhold, USA.
Computer-Aided Design 24(5): 288 (1992) |
6 | EE | Tsung-Pao Fang,
Les A. Piegl:
Algorithm for Delaunay triangulation and convex-hull computation using a sparse matrix.
Computer-Aided Design 24(8): 425-436 (1992) |
5 | | Narayanan Anantakrishnan,
Les A. Piegl:
Integer subdivision algorithm for rendering NURBS curves.
The Visual Computer 8(3): 149-161 (1992) |
1990 |
4 | EE | Les A. Piegl:
Happy birthday Pierre Bézier.
Computer-Aided Design 22(9): 522 (1990) |
3 | EE | Les A. Piegl:
A program development for a university course in geometric modeling.
Computers & Graphics 14(3-4): 501-504 (1990) |
1988 |
2 | EE | Les A. Piegl:
Coons-type patches.
Computers & Graphics 12(2): 221-228 (1988) |
1983 |
1 | EE | Les A. Piegl:
A fast algorithm for parametric curve plotting.
Computers & Graphics 7(3-4): 361-367 (1983) |