John Johnstone

Geometric modeling, the design and analysis of geometric models built from curves and surfaces. These geometric models are used in computer graphics, animation, CAD/CAM, and robotics.

An active research project is on bitangency, which is supported by the National Science Foundation under grant CCR-0203586. The present emphasis of this project is on visibility analysis in a smooth scene, smooth kernels and hulls, smooth shadows, and smooth motion. All of these problems are tightly connected to the construction of bitangents and bitangent developables of a collection of curves and surfaces.

Other research is in the analysis of triangular meshes, game design, motion design for animation and robotics, morphing between different topologies, and anatomical modeling (especially contour reconstruction) for biomedical visualization and analysis. My early research focused on the design and analysis of algebraic curves and surfaces, and my interest continues in this area, especially swept surfaces.

Department of Computer and Information Sciences
University of Alabama at Birmingham

125 Campbell Hall

Birmingham, AL 35294-1170

LAB: 143 Campbell Hall