The Weather-Beaten Dorsal Hand Clinical Rating, Shadow Casting Optical Profilometry, and Skin Capacitance Mapping

Parallel implementation of optical symbolic substitution logic using shadow-casting and polarization.

We propose a parallel implementation method for optical symbolic substitution logic. The method uses shadow-casting principles for the efficient implementation of fundamental operations required in symbolic substitution logic; namely, image replication, spatial shifting, and combination. The use of light polarization allows for the implementation in parallel of several substitution rules withou...

Hardware-Accelerated Colored Stochastic Shadow Maps

This paper extends the stochastic transparency algorithm that models partial coverage to also model wavelength-varying transmission. It then applies this to the problem of casting shadows between any combination of opaque, colored transmissive, and partially covered (i.e., α-matted) surfaces in a manner compatible with existing hardware shadow mapping techniques. Colored Stochastic Shadow Maps ...

Optical snake-based segmentation processor using a shadow casting incoherent correlator

Clustered Deep Shadow Maps for Integrated Polyhedral and Volume Rendering

This paper presents a hardware-accelerated approach for shadow computation in scenes containing both complex volumetric objects and polyhedral models. Our system is the first hardware accelerated complete implementation of deep shadow maps, which unifies the computation of volumetric and geometric shadows. Up to now such unified computation was limited to software-only rendering . Previous hard...

Matlab Detection of Shadows in Image of Profilometry

This paper deals with shadows detection and removal of its influence in profilometry. The proposed algorithm was developed in MATLAB. Elimination of shadows has a crucial effect to the function of unwrapping phase. Unwrapping of phase (one part of the profilometry procedure) can fail when no shadow detection is used. Among other basic operations, morphological operations are used in this algori...