This paper considers the explicit use of motion blur to compute the Optical Flow. In the past, many algorithms have been proposed for estimating the relative velocity from one or more images. The motion blur is generally considered an extra source of noise and is eliminated, or is assumed nonexistent. Unlike most of these approaches, it is feasible to estimate the Optical Flow map using only th...

Abstract This paper presents the energy-optimal velocity to solve problem of path planning for autonomous underwater vehicles (AUVs) in current fields. In proposed scheme, a sequence thrust velocities and steering directions is predicted enable utilize/avoid currents minimize their energy consumption. Each direction are deduced through vector analysis method under expected displacement correspo...

DT log is one of the most frequently used wireline logs to determine compression wave velocity. This log is commonly used to gain insight into the elastic and petrophysical parameters of reservoir rocks. Acquisition of DT log is, however, a very expensive and time consuming task. Thus prediction of this log by any means can be a great help by decreasing the amount of money that needs to be allo...

Aperture extension is achieved in this novel ESPRITbased two-dimensional angle estimation scheme using a uniform rectangular array of vector hydrophones spaced much farther apart than a half-wavelength. A vector hydrophone comprises two or three spatially co-located, orthogonally oriented identical velocity hydrophones (each of which measures one Cartesian component of the underwater acoustical...

This paper addresses the problem of applying powerful statistical pattern classification algorithm based on kernel functions to target tracking on surveillance systems. Rather than directly adapting a recognizer, we develop a localizer directly using the regression form of the Support Vector Machines (SVM). The proposed approach considers to use dynamic model together as feature vectors and mak...

OJp = tether cross-sectional area = surface magnetic field intensity at equator = motional electric field projected along the tether = Lorentz force = average dimensionless current = dimensionless current at the load = tether length = electron mass, m, = 9.10938188 x lO^^' kg = perimeter of the tether cross section = electron charge, q, = 1.60217646 x lO"' ' C) = planet radius = orbit radius = ...

Visualization of a \ eld", which is a physically invisible concept, is a main subject of scienti c visualization. In this paper described is a method for visualizing a great gravitational eld like a black hole. We assume a velocity vector eld of imaginary uid in the vicinity of the black hole for its e ective visualization. We describe the eld by using equations so called \Eulerian method". Thi...

[1] Plate kinematics have been derived from GPS site velocities spanning Australasia and the western Pacific and define a framework in which deformation fields at plate boundaries can be investigated. The Australian Plate appears to be rigid from Cocos Island in the west to Noumea in the east and incorporating all of the Australian continent. A revision of the angular velocity vector of the Pac...

A novel asymmetrical spatial parallel manipulator with three degrees of freedom is proposed. The moving platform of the manipulator has two‐translational and one‐rotational (2T1R) DOFs with respect to the fixed base. Two other manipulators with platforms with high rotational ability are obtained by making simple changes to the original manipulator’s architecture. The platform o...

A modified form of the Townsend equations for the fluctuating velocity wave vectors is applied to a laminar three-dimensional boundary-layer flow. These equations are cast into a Lorenz-type system of equations. The initial system of Lorenz equations yields the generation of masked output signals containing internal ordered regions. The selfsynchronizing property of the Lorenz system of equatio...