Nickolas S. Sapidis

According to our database, Nickolas S. Sapidis authored at least 54 papers between 1987 and 2025.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2025

A Systematic Evaluation of Clustering Algorithms Against Expert-Derived Clustering.

Ioannis Mikrou, Nickolas S. Sapidis

Oper. Res. Forum, June, 2025

Point-normal convexity preserving curve interpolation.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

Comput. Aided Des., 2025

2024

Enhancing operational research in mechatronic systems via modularization: comparative analysis of four clustering algorithms using validation indices.

Ioannis Mikrou, Nickolas S. Sapidis

Oper. Res., December, 2024

2023

Special Issue in the Memory of Herb Voelcker.

Jarek Rossignac, Nickolas S. Sapidis, Vadim Shapiro

Comput. Aided Des., June, 2023

2022

Numerical Shape Interrogation of Planar Generalized Cubic Curves.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

Comput. Aided Des., 2022

2020

Inflection points on 3D curves.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

Comput. Aided Geom. Des., 2020

Shape Analysis of Generalized Cubic Curves.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

Comput. Aided Des., 2020

2019

Cubic polynomial and cubic rational C1 sign, monotonicity and convexity preserving Hermite interpolation.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

J. Comput. Appl. Math., 2019

2018

C1 sign, monotonicity and convexity preserving Hermite polynomial splines of variable degree.

Nikolaos C. Gabrielides, Nickolas S. Sapidis

J. Comput. Appl. Math., 2018

2016

A CAD Tribute to Gerald Farin.

Kewei Chen, Nikolaos C. Gabrielides, Nickolas S. Sapidis, Ramon F. Sarraga, Timothy Strotman, Hans Wolters, Zhiyong (Sean) Xie

Comput. Aided Des., 2016

Automatic Assembly Design for Engineering-to-Order Products Based on Multiple Models and Assembly Features.

Iraklis Chatziparasidis, Nickolas S. Sapidis

Proceedings of the Product Lifecycle Management for Digital Transformation of Industries, 2016

2013

A Provable Algorithm to Detect Weak Symmetry in a Polygon.

Mahmoud Melkemi, Frederic Cordier, Nickolas S. Sapidis

Int. J. Image Graph., 2013

Inferring mirror symmetric 3D shapes from sketches.

Frederic Cordier, Hyewon Seo, Mahmoud Melkemi, Nickolas S. Sapidis

Comput. Aided Des., 2013

2011

3D Object Modeling using Sketches.

Sofia Kyratzi, Nickolas S. Sapidis

Inf. Resour. Manag. J., 2011

An Algorithm to Detect the Weak-Symmetry of a Simple Polygon.

Mahmoud Melkemi, Frederic Cordier, Nickolas S. Sapidis

Proceedings of the Image Analysis and Recognition - 8th International Conference, 2011

2010

Protrusion-oriented 3D mesh segmentation.

Alexander Agathos, Ioannis Pratikakis, Stavros J. Perantonis, Nickolas S. Sapidis

Vis. Comput., 2010

3D articulated object retrieval using a graph-based representation.

Alexander Agathos, Ioannis Pratikakis, Panagiotis Papadakis, Stavros J. Perantonis, Phillip N. Azariadis, Nickolas S. Sapidis

Vis. Comput., 2010

A virtual reality system for the determination of critical machining-process parameters.

Markos A. Petousis, Nickolas Bilalis, Nickolas S. Sapidis

Int. J. Intell. Eng. Informatics, 2010

2009

From sketch to solid: an algebraic cross-section criterion for the realizability of a wireframe sketch.

Sofia Kyratzi, Nickolas S. Sapidis

Computing, 2009

Extracting a polyhedron from a single-view sketch: Topological construction of a wireframe sketch with minimal hidden elements.

Sofia Kyratzi, Nickolas S. Sapidis

Comput. Graph., 2009

Retrieval of 3D Articulated Objects Using a Graph-based Representation.

Alexander Agathos, Ioannis Pratikakis, Panagiotis Papadakis, Stavros J. Perantonis, Phillip N. Azariadis, Nickolas S. Sapidis

Proceedings of the 2nd Eurographics Workshop on 3D Object Retrieval, 2009

2008

An interactive sketching method for 3D object modeling.

Sofia Kyratzi, Nickolas S. Sapidis

Proceedings of the Third International Conference on Digital Interactive Media in Entertainment and Arts, 2008

2007

Coiflet Based Methods for Range Image Processing.

Mourad Djebali, Mahmoud Melkemi, Kamal E. Melkemi, Nickolas S. Sapidis

Int. J. Image Graph., 2007

Geometric modeling of spatial constraints: objectives, methods and solid-modeling requirements.

Nickolas S. Sapidis

Computing, 2007

Product design using point-cloud surfaces: A recursive subdivision technique for point parameterization.

Phillip N. Azariadis, Nickolas S. Sapidis

Comput. Ind., 2007

2005

A thorough encyclopaedia on geometric modelling, its foundations, methods and applications: Handbook of computer aided geometric design, Gerald Farin, Josef Hoschek, Myung-Soo Kim.

Nickolas S. Sapidis

Comput. Aided Des., 2005

Drawing curves onto a cloud of points for point-based modelling.

Phillip N. Azariadis, Nickolas S. Sapidis

Comput. Aided Des., 2005

Efficient Parameterization of 3D Point-Sets Using Recursive Dynamic Base Surfaces.

Phillip N. Azariadis, Nickolas S. Sapidis

Proceedings of the Advances in Informatics, 2005

2004

Planar Development of Free-Form Surfaces: Quality Evaluation and Visual Inspection.

Phillip N. Azariadis, Nickolas S. Sapidis

Computing, 2004

Information models of layout constraints for product life-cycle management: a solid-modelling approach.

Gabriel Theodosiou, Nickolas S. Sapidis

Comput. Aided Des., 2004

Editorial to special issue: CAD education.

Nickolas S. Sapidis, Myung-Soo Kim

Comput. Aided Des., 2004

2002

A Fit-and-Merge Algorithm for Range-Image Segmentation and Model Reconstruction.

Mourad Djebali, Mahmoud Melkemi, Nickolas S. Sapidis

J. Comput. Inf. Sci. Eng., 2002

Range-Image segmentation and model reconstruction based on a fit-and-merge strategy.

Mourad Djebali, Mahmoud Melkemi, Nickolas S. Sapidis

Proceedings of the Seventh ACM Symposium on Solid Modeling and Applications, 2002

Information Models of Design Constraints for Collaborative Product Development.

Gabriel Theodosiou, Nickolas S. Sapidis, Abdelaziz Bouras

Proceedings of the 2002 Geometric Modeling and Processing (GMP 2002), 2002

2001

Methods of Shape-Preserving Spline Approximation: Boris I. Kvasov World Scientific Publishing Co., Singapore, 2000, 356 pp, ISBN 981-02-4010-4.

Nickolas S. Sapidis

Comput. Aided Des., 2001

2000

Informationally-Complete Product Models of Complex Arrangements for Simulation-Based Engineering: Modelling Design Constraints using Virtual Solids.

Nickolas S. Sapidis, Gabriel Theodosiou

Eng. Comput., 2000

1999

Planar domain simplification for modeling virtual-solids in plant and machinery layout.

Nickolas S. Sapidis, Gabriel Theodosiou

Comput. Aided Des., 1999

1997

Visualization of curvature plots and evaluation of fairness: an analysis of the effect of 'scaling'.

Nickolas S. Sapidis, George D. Koras

Comput. Aided Geom. Des., 1997

1995

Direct Construction of Polynomial Surfaces from Dense Range Images Through Region Growing.

Nickolas S. Sapidis, Paul J. Besl

ACM Trans. Graph., 1995

Convexity-preserving interpolatory parametric splines of non-uniform polynomial degree.

Panagiotis D. Kaklis, Nickolas S. Sapidis

Comput. Aided Geom. Des., 1995

Variable-Order Surface Reconstruction Through Region Growing.

Nickolas S. Sapidis

Proceedings of the CAD Systems Development: Tools and Methods [Dagstuhl Seminar, 1995], 1995

1994

Curvature-sign-type boundary conditions in parametric cubic-spline interpolation.

Panagiotis D. Kaklis, Nickolas S. Sapidis

Comput. Aided Geom. Des., 1994

10. Polynomial Splines of Nonuniform Degree: Controlling Convexity and Fairness.

Alexandros I. Ginnis, Panagiotis D. Kaklis, Nickolas S. Sapidis

Proceedings of the Designing Fair Curves and Surfaces: Shape Quality in Geometric Modeling and Computer-Aided Design, 1994

1. Approximation with Aesthetic Constraints.

H. G. W. Burchard, J. A. Ayers, William H. Frey, Nickolas S. Sapidis

Proceedings of the Designing Fair Curves and Surfaces: Shape Quality in Geometric Modeling and Computer-Aided Design, 1994

1993

A Hybrid Method for Shape-Preserving Interpolation with Curvature-Continuous Quintic Splines.

Nickolas S. Sapidis, Panagiotis D. Kaklis

Proceedings of the Geometric Modelling, Dagstuhl, 1993

1992

Controlling the curvature of a quadratic Bézier curve.

Nickolas S. Sapidis, William H. Frey

Comput. Aided Geom. Des., 1992

Solid/solid classification operations for recursive spatial decomposition and domain triangulation of solid models.

Nickolas S. Sapidis, Renato Perucchio

Comput. Aided Des., 1992

1991

Domain Delaunay tetrahedrization of solid models.

Nickolas S. Sapidis, Renato Perucchio

Int. J. Comput. Geom. Appl., 1991

Delaunay triangulation of arbitrarily shaped planar domains.

Nickolas S. Sapidis, Renato Perucchio

Comput. Aided Geom. Des., 1991

Domain Delaunay Tetrahedrization of arbitrarily shaped curved polyhedra defined in a solid modeling system.

Nickolas S. Sapidis, Renato Perucchio

Proceedings of the first ACM Symposium on Solid Modeling Foundations and CAD/CAM Applications, 1991

1990

Automatic fairing algorithm for B-spline curves.

Nickolas S. Sapidis, Gerald E. Farin

Comput. Aided Des., 1990

1989

Curvature and the fairness of curves and surfaces.

Gerald E. Farin, Nickolas S. Sapidis

IEEE Computer Graphics and Applications, 1989

1988

An algorithm for constructing convexity and monotonicity-preserving splines in tension.

Nickolas S. Sapidis, Panagiotis D. Kaklis

Comput. Aided Geom. Des., 1988

1987

Fairing cubic B-spline curves.

Gerald E. Farin, Gerhard Rein, Nickolas S. Sapidis, Andrew J. Worsey

Comput. Aided Geom. Des., 1987