Leo Joskowicz: Geometric Reasoning

School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel

Geometric reasoning and applications

insertability analysis

planning in crowded environments

disassembly sequences

Participants

Prof. Leo Joskowicz	School of Computer Science and Engineering, Hebrew University
Prof. Achim Schweikard	Technical University Munchen, Germany.
Fabian Schwarzer	Technical University Munchen, Germany (now postdoc at Stanford

Goals

The goal of our research is to develop algorithms for practical problems arising in various geometric applications. These include robot motion planning, assembly planning, toleranced shapes, mesh simplification, and CAD applications.

Projects

Motion planning in crowded environments

Algorithms for dissasembling mechanical assemblies

Computing tolerance envelopes of parametric part shapes

Motion grammars for image sequence parsing

Model based monitoring and diagnosis for mobile robots (with R. Simmons, CMU).

Publications

``Efficient linear unboundedness testing: algorithm and applications to assembly planning''
F. Schwartzer, L. Joskowicz A. Schweikard
Int. Journal of Robotics Research 19(9), September 2000, pp 817-834.
Abstract PDF
"Understanding Mechanical Motion: from Images to Behaviors"
T. Dar, L. Joskowicz, E. Rivlin
Artificial Intelligence, Vol. 112, 1999, pp 147-179.
Abstract PDF
"Motion Planning in Crowded Planar Environments"
Y. Lasovsky and L. Joskowicz,
Robotica, Vol. 17, 1999, pp. 365-371.
Abstract PDF
"Solving Difference Constraints Incrementally"
G. Ramalingam, J. Song, L. Joskowicz, and R.E. Miller
Algorithmica , Vol 23(3), pp 261-275, 1999.
Abstract PDF
"Mesh Simplification with Smooth Surface Reconstruction"
O. Volpin, A. Sheffer, M. Bercovier, L. Joskowicz
Computer-Aided Design, Vol 30 No. 11, pp 875-882, 1998.
Abstract PDF
"Efficiently Testing for Unboundedness and m-handed Assembly"
F. Schwarzer, F. Bieberbach, L. Joskowicz, A. Schweikard.
IEEE/RSJ Int. Conference on Intelligent Robots and Systems , Canada, 1998.
Abstract PDF
"Interference-free insertion of a solid body into a cavity: an algorithm and a medical application"
L. Joskowicz and R.H. Taylor
International Journal of Robotics Research, Vol. 15 No. 3, 1996.
Abstract PDF
Knowledge-Intensive CAD for Comprehensive Design
D.D. Grossman and L. Joskowicz
Proc. of the IFIP WG5.2 Workshop on Formal Design Methods for CAD, Mexico, Chapman, 1995.
Abstract PDF
"Practical Tools for Reasoning about Linear Constraints"
T. Huynh, L. Joskowicz, C. Lassez, and J.L. Lassez,
Fundamenta Informaticae Special issue on Logic and Artificial Intelligence, Vol 15, No. 4, IOS Press, 1991, pp 357-379.
Abstract PDF

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Last modified: January 31st, 2002.