In this paper we consider one issue of the problem of automatically constructing geometric models of articulated objects from multiple range images. Automatic model construction has been investigated for rigid objects, but the techniques used do not extend easily to the articulated case. The problem arises because of the need to register surface measurements taken from diierent viewpoints into ...

In this paper we discuss the possibility of augmenting existing musical performance by using a novel sensing device termed ‘PegLeg’. This device interprets the movements and motions of a musician during play by allowing the musician to manipulate a sensor in three dimensions. A force sensitive surface allows us to detect, interpret and interface the subtle but integral element of physical “effo...

The nonholonomy exhibited by kinematic systems consisting of bodies rolling on top of each other can be used to the purpose of building dexterous mechanism with a minimum hardware complication. Previous work concentrated on manipulation of objects possessing a regular surface. On the other hand, industrial parts are most often irregular, possessing ver-tices and edges. In this paper we present ...

We study hypersurfaces moving under flow that depends on the mean curvature. The approach is based on a numerical technique that embeds the evolving hypersurface as the zero level set of a family of evolving surfaces. In this setting, the resulting partial differential equation for the motion of the level set function φ may be solved by using numerical techniques borrowed from hyperbolic conser...

Wide use of surface electromyograph (sEMG) has been made for efficient recognition of finger gestures due to its convenient to use and distinguishing signal patterns along finger movements. For high classification accuracy, it is important to have a consistent feature of sEMG signal feature for each finger gesture of a number. However, feature of sEMG signal for identical finger gesture can be ...

A novel technique for multi-scale smoothing of a free-form 3-D surface is presented. Complete triangulated models of 3-D objects are constructed (through fusion of range images) and are then described at multiple scales. This is achieved by convolving local parametrizations of the surface with 2-D Gaussian filters iteratively. Our method for local parametrization makes use of semigeodesic or go...

A method to enhance surface plasmon coupled fluorescence (SPCF) from thin copper films using silver islands as an overlayer is presented. Silver islands were deposited onto copper thin films using a wet chemical technique for up to 60 s, which resulted in surface features ranging from randomly sized silver nanoparticles to a silver thin film. Theoretical Fresnel calculations predict the couplin...

Using an ab-initio electronic structure method, I study the (111) surfaces of the half-metallic NiMnSb alloy. In all cases there is a very pronounced surface state within the minority gap which destroys the half-metallicity This state survives for several atomic layers below the surface contrary to the (001) surfaces where surface states were located only at the surface layer. The lower dimensi...