In this paper, we introduce the Virtual Photometric Environment which is one of mixed reality systems. The Virtual Photometric Environment enables arbitrarily control over the lighting directions and reflection properties of objects. The environment is realized by photometric pattern projection onto screen objects. Reflection properties of the photometric patterns are acquired from real objects...

In this paper, we introduce the Virtual Photometric Environment which is one of mixed reality systems. The Virtual Photometric Environment enables arbitrarily control over the lighting directions and reflection properties of objects. The environment is realized by photometric pattern projection onto screen objects. Reflection properties of the photometric patterns are acquired from real objects...

The measurement of accurate material properties is an important step towards the inclusion of realistic objects in digital documents. Many real-world objects are composed of a number of materials with subtle changes even within a single material. We present an image-based measuring method that robustly detects the different materials of real objects and fits an average bidirectional reflectance...

In order to characterize surfaces with respect to their sound reflecting properties, the absorption and the scattering or diffusion coefficient can currently be measured under standardized laboratory conditions. However it is questionable whether the data from measurements performed under such laboratory conditions can be used to accurately model the actual sound field in rooms. Additionally, i...

in this paper the reflection coefficient of electromagnetic wave incidence on the walls of the buildings and obstacles that occurs in mobile communication path was modified by solving the riccati nonlinear equations. for this purpose, the building walls are assumed inhomogeneous layers where their permittivity changes as function of the wall thickness. using this reflection coefficient, a new p...

the improvement in the temporal resolution of seismic data is a critical issue in hydrocarbonexploration. it is important for obtaining more detailed structural and stratigraphic information. manymethods have been introduced to improve the vertical resolution of reflection seismic data. eachmethod has advantages and disadvantages which are due to the assumptions and theories governingtheir issu...

In this paper, we analyze the transmission and reflection properties of a high order discontinuous Galerkin method for dispersive Maxwell’s equations, originally proposed by Lu et al. [J. Comput. Phys. 200 (2004), pp. 549-580]. We study the reflection and transmission properties of the numerical method for up to second-order polynomial elements for oneand two-dimensional Maxwell’s equations wit...