Author's Current Address: E.P. BIasch, Air Force Research Laboratory, NY, USA; D.A. Lambert, Defence Science & Tech. Organization, Australia; P. Valin, Defence R&D Canada Valcartier; M. "Mitch" M. Kokar, Northeastern University, MA, USA; J. Llinas, SUNY Buffillo, NY, USA; S. Das, Machine Analytics, MA, USA; C. Chong, BAB Systems, CA, USA; and E. Shahbazian, OODA Technologies, Canada. Manuscxrip...

We consider retarded time-delay systems ˙ x(t) = Ax(t) + Bx(t − τ), t > 0 x(t) = ϕ(t), t ∈ [−τ, 0] (Σ) where A, B ∈ R n×n .

We show that generic viewpoint and lighting assumptions resolve standard visual ambiguities by biasing toward planar surfaces. Our model uses orthographic projection with a two-dimensional affine warp and Lambertian reflectance functions, including cast and attached shadows. We use uniform priors on nuisance variables such as viewpoint direction and the light source. Limitations of using unifor...

This paper addresses the dimensional synthesis of parallel kinematics machines. A multiobjective optimization problem is proposed in order to determine optimum structural and geometric parameters of parallel manipulators. The proposed approach is applied to the optimum design of a three-degree-of-freedom planar parallel manipulator in order to minimize the mass of the mechanism in motion and to...

There are many techniques available to approach reflectance-based shape recovery in appropriate fields of application [4]. For instance, three-source photometric stereo method may be used for generating height maps of a human face, a human hand, etc. As an example, the following figures show three input images generated by using Lambertian reflectance maps (Figure 1). Figure 2 shows the shape r...

Optical characterization and appearance prediction of translucent materials is needed in several fields engineering such as computer graphics, dental restorations or 3D printing technologies. In the case strongly diffusing materials, flux transfer models like Kubelka-Munk model (2-flux) 4-flux have been successfully used to this aim for decades. However, they lead inaccurate color variations ob...