Results 21  30
of
6,152
On the Advantages of Polar and Logpolar Mapping for Direct Estimation of Timetoimpact from Optical Flow
 IEEE Trans. on PAMI
, 1992
"... The estimation of time to impact is of vital importance for animals as well as for autonomous robots. The optical flow, which is the twodimensional projection on the retinal plane of the relative, threedimensional motion between the observer and the objects in the scene can be used to estimate the ..."
Abstract

Cited by 111 (4 self)
 Add to MetaCart
The estimation of time to impact is of vital importance for animals as well as for autonomous robots. The optical flow, which is the twodimensional projection on the retinal plane of the relative, threedimensional motion between the observer and the objects in the scene can be used to estimate
Emission of polarized photons from unpolarized electrons moving in crystals ∗
, 2003
"... Radiation emitted by unpolarized highenergy electrons penetrating crystals may be linearly polarized. This occurs when the particle velocity makes an angle, with respect to some major crystal axis, being sufficiently larger than the axialchannelling angle. For such orientation, a complete descript ..."
Abstract
 Add to MetaCart
description of spectral and polarization characteristics of the radiation is derived. At planar channelling, a nonperturbative contribution to the probability of the process appears caused by the plane field, and we must solve exactly a one dimensional mechanical problem. For that, the approximate form
Imaging single photons in nonseparable states of polarization and spatialmode
 Proc. SPIE 9225
, 2014
"... Nonseparable superpositions of polarization and spatial mode of a single photon produce a state that has a polarization that depends on the transverse position, and contains all states of polarization represented on the Poincare sphere. We have done measurements of the spacedependent state of pola ..."
Abstract

Cited by 1 (1 self)
 Add to MetaCart
of polarization of single photons prepared in distinct 22 (qubitqubit) and 23 (qubitqutrit) nonseparable superpositions of LaguerreGauss spatial and polarization states. Detection was done by polarimetry of the light projected at distinct locations in the transverse plane. The polarization patterns had a C
Optimization of two dimensional photonic crystal waveguides for TE and TM polarizations
"... In this paper, we optimize the geometries of some 2D photonic crystal waveguides to increase their singlemode bandwidths for TE and TM polarizations. Using the Plane Wave Expansion (PWE) method combined with optimization algorithm, we find the local maxima as well as the global maximum. A photonic ..."
Abstract

Cited by 1 (1 self)
 Add to MetaCart
In this paper, we optimize the geometries of some 2D photonic crystal waveguides to increase their singlemode bandwidths for TE and TM polarizations. Using the Plane Wave Expansion (PWE) method combined with optimization algorithm, we find the local maxima as well as the global maximum. A photonic
Polarities of shift planes
, 2009
"... We construct polarities for arbitrary shift planes and develop criteria for conjugacy under the normalizer of the shift group. Under suitable assumptions (in particular, for finite or compact planes) we construct all shift groups on a given plane, and our constructions yield all conjugacy classes ..."
Abstract

Cited by 1 (0 self)
 Add to MetaCart
We construct polarities for arbitrary shift planes and develop criteria for conjugacy under the normalizer of the shift group. Under suitable assumptions (in particular, for finite or compact planes) we construct all shift groups on a given plane, and our constructions yield all conjugacy classes
POLAR INVARIANTS OF PLANE CURVES AND THE
"... We prove a factorization theorem for the polars of plane singularities with respect to the Newton diagram and calculate the polar quotients of nondegenerated singularities. ..."
Abstract
 Add to MetaCart
We prove a factorization theorem for the polars of plane singularities with respect to the Newton diagram and calculate the polar quotients of nondegenerated singularities.
The ekpyrotic universe: Colliding branes and the origin of the hot big bang
 REV. D
, 2001
"... We propose a cosmological scenario in which the hot big bang universe is produced by the collision of a brane in the bulk space with a bounding orbifold plane, beginning from an otherwise cold, vacuous, static universe. The model resolves the cosmological horizon, flatness and monopole problems and ..."
Abstract

Cited by 151 (20 self)
 Add to MetaCart
We propose a cosmological scenario in which the hot big bang universe is produced by the collision of a brane in the bulk space with a bounding orbifold plane, beginning from an otherwise cold, vacuous, static universe. The model resolves the cosmological horizon, flatness and monopole problems
(TH) and (EXP) ON THE ANALYSIS OF VECTOR MESON PRODUCTION BY POLARIZED PHOTONS **
, 1969
"... The formalism necessary to analyze production of vector mesons with polarized photons (yp+pV) is presented in detail. The decay angular distribution of the vector mesons is parameterized by the density matrices P o, (Y = 0,1,2,3. Restrictions on the numerical values of the density matrix elements ..."
Abstract
 Add to MetaCart
The formalism necessary to analyze production of vector mesons with polarized photons (yp+pV) is presented in detail. The decay angular distribution of the vector mesons is parameterized by the density matrices P o, (Y = 0,1,2,3. Restrictions on the numerical values of the density matrix elements
Photon polarization in B → Kresγ ∗
, 2003
"... In this talk, I introduce recently proposed method for measuring the photon polarization in B → Kresγ. It is also shown that anomalous righthanded top couplings can severely affect the photon polarization without spoiling the well measured branching ratio of B → Xsγ. Estimated number of B mesons ne ..."
Abstract
 Add to MetaCart
In this talk, I introduce recently proposed method for measuring the photon polarization in B → Kresγ. It is also shown that anomalous righthanded top couplings can severely affect the photon polarization without spoiling the well measured branching ratio of B → Xsγ. Estimated number of B mesons
Results 21  30
of
6,152