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Prof. Nickolas S. Sapidis

University of Western Macedonia, Greece

Email: nsapidis@uowm.gr


1993 Ph.D., University of Rochester, USA

1988 M.S., University of Rochester, USA

1987 M.A., University of Utah, USA


  1. M. Djebali, M. Melkemi, N. Sapidis, “A Fit-and-Merge Algorithm for Range-Image Segmentation and Model Reconstruction”, Transactions of the ASME - Journal of Computing and Information Science in Engineering 2(4), pp. 285-293, 2002.
  2. G. Theodosiou, N. Sapidis, “Information Models of Layout Constraints for Product Life-Cycle Management: A Solid-Modelling Approach”, Computer-Aided Design 36(6), pp. 549-564, 2004.
  3. P. Azariadis, N. Sapidis, “Planar Development of Free-Form Surfaces: Quality Evaluation and Visual Inspection”, Computing 72(1-2), pp. 13-27, 2004.
  4. P. Azariadis, N. Sapidis, “Drawing Curves onto a Cloud of Points for Point-Based Modelling”, Computer-Aided Design 37(1), pp. 109-122, 2005.
  5. N. Sapidis, S. Kyratzi, P. Azariadis, “Improved Computational Tools for Concept Development based on Sketches and Advanced CAD Technologies”, Computer-Aided Design and Applications 2(6), pp. 707-716, 2005.
  6. P. Azariadis, N. Sapidis, “Efficient Parameterization of 3D Point-Sets Using Recursive Dynamic Base Surfaces”, in: P. Bozanis, E.N. Houstis (eds), «Advances in Informatics»: Proceedings of the 10th Panhellenic Conf. on Informatics (PCI 2005, Nov. 11-13, 2005, Volos, Greece), Lecture Notes in Computer Science Vol. 3746, pp. 296–306, Springer, 2005.
  7. O. Lopez-Ortega, N. Sapidis, D. Wallace, “Challenges for Developing Intelligent, Interactive and Cooperative PLM Systems: Introductory Article on Applications of Artificial Intelligence and Virtual Reality to Product Lifecycle Management”, International Journal of Product Lifecycle Management 1(3), pp. 195-210, 2006.
  8. N. Sapidis, “Geometric Modeling of Spatial Constraints: Objectives, Methods and Solid-Modeling Requirements”, Computing 79(2), pp. 337-352, 2007.
  9. M. Djebali, M. Melkemi, K. Melkemi, N. Sapidis, “Coiflet Based Methods for Range Image Processing”, International Journal of Image and Graphics 7(2), pp. 321-351, 2007.
  10. A. Agathos, I. Pratikakis, S. Perantonis, N. Sapidis, P. Azariadis, “3D Mesh Segmentation Methodologies for CAD Applications” (Review), Computer-Aided Design and Applications 4(6), pp. 827-841, 2007.
  11. P. Azariadis, N. Sapidis, “Product Design using Point-Cloud Surfaces: A Recursive Subdivision Technique for Point Parameterization”, Computers in Industry 58(8-9), pp. 832-843, 2007.
  12. S. Kyratzi, N. Sapidis, “Extracting a Polyhedron from a Single-view Sketch: Topological Construction of a Wireframe Sketch with Minimal Hidden Elements”, Computers and Graphics 33(3), pp. 270-279, 2009.
  13. S. Kyratzi, N. Sapidis, “From Sketch to Solid: An Algebraic Cross-Section Criterion for the Realizability of a Wireframe Sketch”, Computing 86(2-3), pp. 219–234, 2009.
  14. Y. Ouzrout, H. Geryville, A. Bouras, N. Sapidis, “A Product Information and Knowledge Exchange Framework: A Multiple Viewpoints Approach”, International Journal of Product Lifecycle Management 4(1-3), pp. 270-289, 2009.
  15. A. Agathos, I. Pratikakis, S. Perantonis, N. Sapidis, “Protrusion-Oriented 3D Mesh Segmentation”, The Visual Computer 26(1), pp. 63-81, 2010.
  16. M. Mpampa, P. Azariadis, N. Sapidis, “A New Methodology for the Development of Sizing Systems for the Mass Customization of Garments”, International Journal of Clothing Science and Technology 22(1), pp. 49-68, 2010.
  17. M. Petousis, N. Bilalis, N. Sapidis, “A Virtual Reality System for the Determination of Critical Machining-Process Parameters”, International Journal of Intelligent Engineering Informatics 1(1), pp. 75-88, 2010.
  18. A. Agathos, I. Pratikakis, P. Papadakis, S. Perantonis, P. Azariadis, N. Sapidis, “3D Articulated Object Retrieval Using a Graph-based Representation”, The Visual Computer 26(10), pp. 1301-1319, 2010.
  19. S. Kyratzi, N. Sapidis, “3D Object Modeling using Sketches”, Information Resources Management Journal 24(4), pp. 27-49, 2011.
  20. S. Kyratzi, P. Azariadis, N. Sapidis, “Realizability of a Sketch: An Algorithmic Implementation of the Cross-Section Criterion”, Computer-Aided Design & Applications 8(5), pp. 665-679, 2011.
  21. M. Melkemi, F. Cordier, N. Sapidis, “An Algorithm to Detect the Weak-Symmetry of a Simple Polygon”, in: M. Kamel, A. Campilho (eds), «IMAGE ANALYSIS AND RECOGNITION»: Proceedings of the International Conf. on Image Analysis and Recognition ICIAR 2011 (June 22-24, 2011, Burnaby, BC, Canada), Lecture Notes in Computer Science Vol. 6753, pp. 365-374, Springer, 2011.
  22. G. Karaoglanidis, N. Sapidis, “3D Methodology for Modeling and Analysis of Medium-Complexity Mechanical Assemblies: Application in Elevator-Car Design”, 3D Research 3(4), Article 1, pp. 1-10, 2012.
  23. F. Cordier, H. Seob, M. Melkemi, N. Sapidis, “Inferring Mirror Symmetric 3D Shapes from Sketches”, Computer-Aided Design 45(2), pp. 301-311, 2013.
  24. P. Azariadis, S. Kyratzi, N. Sapidis, “A Hybrid-Optimization Method for Assessing the Realizability of Wireframe Sketches”, 3D Research 4(1), Article 3, pp. 1-11, 2013.
  25. M. Melkemi, F. Cordier, N. Sapidis, “A Provable Algorithm to Detect Weak Symmetry in a Polygon”, International Journal of Image and Graphics 13(1), Article 1350002 [28 pages], 2013.

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