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Results 1 - 10
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358
Lensless imaging with a controllable aperture
- In CVPR
, 2006
"... In this paper we propose a novel, highly flexible camera. The camera consists of an image detector and a special aperture, but no lens. The aperture is a set of parallel light attenuating layers whose transmittances are controllable in space and time. By applying different transmittance patterns to ..."
Abstract
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Cited by 37 (2 self)
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In this paper we propose a novel, highly flexible camera. The camera consists of an image detector and a special aperture, but no lens. The aperture is a set of parallel light attenuating layers whose transmittances are controllable in space and time. By applying different transmittance patterns
DYNAMIC APERTURE WITH MULTIPOLES OF SPECIAL MAGNETS IN THE KEKB INTERACTION REGION
"... At KEKB, six quadrupoles of special shapes are placed in the interaction region. Those quadrupoles are accompanied by higher-order multipole components which are promi-nent sources to degrade the dynamic aperture, and which even affect the linear optics because the design orbit passes through one of ..."
Abstract
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At KEKB, six quadrupoles of special shapes are placed in the interaction region. Those quadrupoles are accompanied by higher-order multipole components which are promi-nent sources to degrade the dynamic aperture, and which even affect the linear optics because the design orbit passes through one
Optimization of Aperture Coupled Microstrip Patch Antennas
"... Abstract-Aperture coupled microstrip patch antennas (ACMPA) are special class of microstrip antennas with high gain and wide impedance bandwidth. These antennas differ from other microstrip antennas with their feeding structure of the radiating patch element. Input signal couples to the radiating p ..."
Abstract
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Abstract-Aperture coupled microstrip patch antennas (ACMPA) are special class of microstrip antennas with high gain and wide impedance bandwidth. These antennas differ from other microstrip antennas with their feeding structure of the radiating patch element. Input signal couples to the radiating
Coded apertures for x-ray scatter imaging
, 2013
"... We examine coding strategies for coded aperture scatter imagers. Scatter imaging enables tomography of compact regions from snapshot measurements. We present coded aperture designs for pencil and fan beam geometries, and compare their singular value spectra with that of the Radon transform and selec ..."
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and selected volume tomography.We show that under dose constraints scatter imaging improves conditioning over alternative techniques, and that specially designed coded apertures enable snapshot 1D and 2D
Strong Solutions of the Navier-Stokes Equations in Aperture Domains
"... We consider the nonstationary Navier-Stokes equations in an aperture domain R 3 consisting of two halfspaces separated by a wall, but connected by a hole in this wall. In this special domain one has to impose an auxiliary condition to single out a unique solution. This can be done by prescribin ..."
Abstract
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We consider the nonstationary Navier-Stokes equations in an aperture domain R 3 consisting of two halfspaces separated by a wall, but connected by a hole in this wall. In this special domain one has to impose an auxiliary condition to single out a unique solution. This can be done
Parallel Matching of Synthetic Aperture Radar Images
, 1999
"... . This paper presents an MPI-parallelized version of a matching algorithm for synthetic aperture radar (SAR) images. First the necessity for automated matching and the chosen algorithm are outlined briey, and the algorithmic structure and the applied parallelization strategy are then presented a ..."
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. This paper presents an MPI-parallelized version of a matching algorithm for synthetic aperture radar (SAR) images. First the necessity for automated matching and the chosen algorithm are outlined briey, and the algorithmic structure and the applied parallelization strategy are then presented
Parallel Matching of Synthetic Aperture Radar Images
"... . This paper presents an MPI-parallelized version of a matching algorithm for synthetic aperture radar (SAR) images. First the necessity for automated matching and the chosen algorithm are outlined briefly, and the algorithmic structure and the applied parallelization strategy are then presented ..."
Abstract
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. This paper presents an MPI-parallelized version of a matching algorithm for synthetic aperture radar (SAR) images. First the necessity for automated matching and the chosen algorithm are outlined briefly, and the algorithmic structure and the applied parallelization strategy
Aperture-Angle Optimization Problems in 3 Dimensions
- J. of Mathem. Modell. and Algorit
"... Let [a; b] be a line segment with end points a, b and a point at which a viewer is located, all in R 3 . The aperture angle of [a; b] from point , denoted by `(), is the interior angle at of the triangle \Delta(a; b; ). Given a convex polyhedron P not intersecting a given segment [a; b] we consi ..."
Abstract
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Cited by 1 (0 self)
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Let [a; b] be a line segment with end points a, b and a point at which a viewer is located, all in R 3 . The aperture angle of [a; b] from point , denoted by `(), is the interior angle at of the triangle \Delta(a; b; ). Given a convex polyhedron P not intersecting a given segment [a; b] we
Future multiple uplink per aperture access schemes
"... Present TT&C communication with distant probes is carried out with a single link dedicated to each probe. During the pass the ground antenna is exclusively assigned to this link. The current international exploration mission model is such that several spacecraft may be observable close to each o ..."
Abstract
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of multiple uplink with special emphasis on the operational requirements for telecommand, telemetry and ranging/Doppler tracking of each spacecraft and on the independence of each link relative to the others. I.
Results 1 - 10
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