Instantaneous fundamental frequency (F0) in voiced speech can be obtained from the sequence of epochs corresponding to the instants of significant excitation. The epoch sequence can be derived using the recently proposed epoch extraction method based on zero frequency filtering. The epoch extraction method is robust against additive noise degradation. But in a multispeaker mixed signal, the deg...

In this work, we measured the correlator spectrum of optically cooled nuclear spin system a bulk n-GaAs crystal in zero magnetic field. The resulting is described by two contours, which can be interpreted as participation spins types interactions. We analyzed model for classical moments GaAs lattice. analysis showed that main contribution to high-frequency part due dipole-dipole interaction, an...

An adaptive regularized level set method for image segmentation is proposed. A weighted p x Dirichlet integral is presented as a geometric regularization on zero level curve, which is used to diminish the influence of image noise on level set evolution while ensuring the active contours not to pass through weak object boundaries. The idea behind the new energy integral is that the amount of reg...

In four experiments, observers interpolated parabolic sampled contours confined to planes in three-dimensional space. Each sampled contour consisted of eight visible points, placed irregularly along the otherwise invisible parabolic contour. Observers adjusted an additional point until it fell on the contour. We sought to determine how each visible point influenced interpolation by measuring th...

A novel technique for multi-scale curvature computation on a smoothed 3-D surface is presented. This is achieved by convolving local parametrisations of the surface with 2-D Gaussian filters iteratively. In our technique, semigeodesic coordinates are constructed at each vertex of the mesh which becomes the local origin. A geodesic from the origin is first constructed in an arbitrary direction s...

A novel technique for multi-scale curvature computation on a smoothed 3D surface is presented. In our technique, semigeodesic coordinates are constructed at each vertex of the mesh which becomes the local origin. A geodesic from the origin is first constructed in an arbitrary direction such as the direction of one of the incident edges. The surface Gaussian and mean curvatures are then estimate...

A novel technique is presented for multi-scale curvature computation on a smoothed 3-D surface. This is achieved by convolving local parameterisations of the surface iteratively with 2-D Gaussian filters. In the technique, each vertex of the mesh becomes a local origin around which semi-geodesic co-ordinates are constructed. A geodesic from the origin is first constructed in an arbitrary direct...

Quantum field theories and Matrix models have a far richer solution set than is normally considered, due to the many boundary conditions which must be set to specify a solution of the Schwinger-Dyson equations. The complete set of solutions of these equations is obtained by generalizing the path integral to include sums over various inequivalent contours of integration in the complex plane. We ...