Cellular Neural Networks are very suitable to realize single-chip focal-plane image processing for artificial vision in the context of space-variant active vision. A new solution is presented for optical flow computation in continuous time, by a differential method based on the equation of continuity and the smoothness constraint.

We present results obtained (by exact diagonalization) for the problem of two t−J planes with an interlayer coupling t⊥. Our results for small hole concentrations show that in-plane superconducting correlations are enhanced by t⊥. When the constraint on double occupancy in the t−Jmodel is relaxed, the enhancement disappears. These results illustrate the inter–layer tunneling mechanism for super...

A specialized formulation of Azarbayejani and Pentland's framework for recursive recovery of motion, structure and focal length from feature correspondences tracked through an image sequence is presented. The specialized formulation addresses the case where all tracked points lie on a plane. This planarity constraint reduces the dimension of the original state vector, and consequently the numbe...

In this paper, we consider the problem of computing a shortest path of bounded curvature amidst obstacles in the plane. More precisely, given prescribed initial and nal conngurations (i.e. positions and orientations) and a set of obstacles in the plane, we want to compute a shortest C 1 path joining those two conngurations, avoiding the obstacles, and with the further constraint that, on each C...

AIM To describe, using gait analysis, the development of spinal motion in the growing child. METHODS Thirty-six healthy children aged from 3 to 16 years old were included in this study for a gait analysis (9 m-walk). Various kinematic parameters were recorded and analyzed such as thoracic angle (TA), lumbar angle (LA) and sagittal vertical axis (SVA). The kinetic parameters were the net react...

The methods to measure the angle of the CKM unitarity triangle at the B factories are presented. Special emphasis is given to the measurement of using the ! decays which has already produced results providing an interesting constraint in the "$#&% plane. Various methods using ' ( ) decays are also presented.

We describe the geometrical properties of solid's shadows projected onto a flat plane by point-light sources. Even though the shape and position of each element are arbitrary and unknown, we indicate that there exists a certain constraint between three shadows on the plane; i.e., three cross points determined by pairs of tangential lines must sit on a straight line. This property is considered ...

Postural control requires the coordination of force production at the limb endpoints to apply an appropriate force to the body. Subjected to horizontal plane perturbations, quadruped limbs stereotypically produce force constrained along a line that passes near the center of mass. This phenomenon, referred to as the force constraint strategy, may reflect mechanical constraints on the limb or bod...