An integrated framework for physics-based simulation in computer vision

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Our research has initially focused on fundamental problems in geometric modeling of man-made objects from range (3D) data for off-line model building. We then addressed the problem of interactive modeling. The concept of vector field was proposed and has led to both scientific and commercial achievements. Over these years, the power of off-the-shelf computers has increased drastically and fields such as computer graphics, virtual reality, distributed computing, and simulation have made significant progress. We are now witnessing a convergence of these fields with the field of computer vision. Today, workteams rarely design complex systems or plan operations in complex environments without simulating them. Adding dynamic behaviour to the geometric models, making these models interact in realistic simulations, and providing users with flexible tools for exploring the simulations are challenging topics that motivate the program presented in this proposal whose long term objective is to develop an integrated framework for supporting physics-based simulation in complex 3D geometric environments.The program is comprised of two components: i) a vision component which aims at building geometric models of very large structures (buildings, towns, etc.), and ii) a virtual reality component which aims at developing an approach for adding behaviours to these geometric models and for exploring these behaviours in immersive virtual reality environments. This program expands our current line of research, addresses the convergence between fields, and opens promising tracks of investigation. To reach this long term objective, the research will first focus on four short term objectives: 1- in the vision component, expand the vector field framework to the problem of geometric modeling of very large environments; 2- in the virtual reality component, develop the foundations of a framework for interactive visual exploration of simulations in immersive environments; 3-train highly qualified personnel; 4- publish the research results and transfer the technology to the user sector.