Geometry

Part of my research evolves around geometric modelling with some topics related to computer graphics and vision. A particular direction is reverse engineering in the sense of generating computational descriptions of artefacts and natural objects and detecting patterns in the measured data suitable for analysis, modification and simulation applications. I am also working on point-based modelling, curves and surfaces, mesh processing, and related issues in differential and computational geometry.

li2006 — M. Li, F. C. Langbein, R. R. Martin. Constructing Regularity Feature Trees for Solid Models. In: M.-S. Kim, K. Shimada (eds), Proc. Geometric Modeling and Processing, Springer LNCS, 4077:267-286, 2006. [DOI:10.1007/11802914_19] [PDF]

Constructing Regularity Feature Trees for Solid Models

26th July 2006 in Design Intent Detection tagged publication

Quinn2006 — J. A. Quinn, F. C. Langbein, R. R. Martin, G. Elber. Density-Controlled Sampling of Parametric Surfaces Using Adaptive Space-Filling Curves. In: M.-S. Kim, K. Shimada (eds), Proc. Geometric Modeling and Processing, Springer LNCS, 4077:465-484, 2006. [DOI:10.1007/11802914_33] [PDF]

Density-Controlled Sampling of Parametric Surfaces Using Adaptive Space-Filling Curves

6th June 2006 in Sampling tagged publication

liu2006 — S. Liu, R. R. Martin, F. C. Langbein, P. L. Rosin. Segmenting Reliefs on Triangle Meshes. In: Proc. ACM Symp. Solid and Physical Modeling, pp. 7-16, 2006. [DOI:10.1145/1128888.1128890] [PDF]

Segmenting Reliefs on Triangle Meshes

6th May 2006 in Reliefs tagged publication

December 2005 – December 2009: Filtering and Processing of Irregular Meshes with Uncertainties. EPSRC EP/C007972/1. PI: P. L. Rosin, CoI: N. C. Mitchell, F. C. Langbein, A. D. Marshall, R. R. Martin. £260,742.

Filtering and Processing of Irregular Meshes with Uncertainties

19th December 2005 in Mesh Filtering tagged funding

June 2005 – June 2009: Smoothing Boundary Curves. ESPRC GR/T24579/01. PI: R. R. Martin, CoI: F. C. Langbein. Industrial partner: Delcam Int PLC. £196.722.

Smoothing Boundary Curves

22nd June 2005 in Smoothing Boundary Curves tagged funding

February 2005 – February 2008: Reverse Engineering of Reliefs. EPSRC GR/T24425/01. PI: RR Martin, CoI: AD Marshall, FC Langbein, PL Rosin. Industrial partner: Delcam Int PLC. £200,425.

Reverse Engineering of Reliefs

3rd February 2005 in Reliefs tagged funding

A suitable watermarking scheme has to be sufficiently reliable such that it is feasible to use it as a mean to resolve disputes over ownership or origin of a particular object in the context of a court of law or similar situations. It should be infeasible to remove the watermark […]

Watermarking

21st December 2004 in Watermarking Meshes tagged article

gao2004 — C. H. Gao, F. C. Langbein, A. D. Marshall, R. R. Martin. Local Topological Beautification of Reverse Engineered Models. Computer-Aided Design, 36(13):1337-1355, 2004. [DOI:10.1016/j.cad.2004.02.004] [PDF]

Local Topological Beautification of Reverse Engineered Models

6th December 2004 in Beautification tagged publication

C. H. Gao, F. C. Langbein, A. D. Marhall, R. R. Martin, Y. Li, Z. Yang. Partial Approximate Symmetry Detection of Geometric Model. Materials Science Forum, 471-472:702-706, 2004. [DOI:10.4028/0-87849-956-3.702]

Partial Approximate Symmetry Detection of Geometric Model

27th October 2004 in Beautification tagged publication

F. C. Langbein. Reverse Engineering: From Artifacts to Concepts. Public engagement and outreach talk given at various occasions. [PDF]

Reverse Engineering: From Artifacts to Concepts

30th September 2004 in Beautification / Design Intent Detection tagged engagement / presentation

F.C. Langbein. Design Intent of Geometric Models. Invited seminar talk, Institute of Information and Mathematical Sciences, Massey University at Albany, 22nd September 2004. [PDF]