A new comprehensive reflectance model is presented. The model accounts for both surface and subsurface local light scattering. The model combines, for the first time, highly-efficient wave optics components and rigorous empirical components. The model displays a wide range of directional and non-directional light scattering phenomena and compares favorably against extensive, detailed reflectanc...

Computer networks have become critical to NATO operations. Much of NATO's computer traffic runs over civilian networks, and NATO computers are accessible to a wide variety of malicious activities. The scale of the network traffic involved makes monitoring and analysis difficult, and the rapid deployment of computer systems to new areas places additional stresses on operators and analysts. We ha...

In this paper, we explain what are tensors and how tensors can help in computing.

We present a method for performing very high resolution, incompressible fluid simulations at multiple resolutions of detail, simultaneously. The particle-based method supports user-defined regions of refinement and can handle complex collision boundary conditions while remaining smooth and stable. Conservation of mass in refined detail levels is handled explicitly, overcoming mass-loss problems...

My research in computer graphics focuses on the development of methods and systems to increase the efficiency and effectiveness of user interaction and manipulation of visual data. Interactivity is a fundamental characteristic of most computer graphics applications, yet user interaction processes are often extremely cumbersome and time consuming. Therefore, I believe that improving user interac...

VR technologies provide a unique method for enhancing user visualization of complex three-dimensional graphics and environments. The study attempts to apply virtual reality (VR) technologies to computer-aided design (CAD) curriculum by integration of network, cad and VR on a web-based learning environment. Through VR technologies, it is expected that the traditional two-dimensional computer gra...