Results 261 to 270 of about 924,536 (300)

Improvement of AVNIR-2 Radiometric Calibration by Comparison of Cross-Calibration and Onboard Lamp Calibration

IEEE Transactions on Geoscience and Remote Sensing, 2009
The Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) on-orbit radiometric performance has been improved through the comparison of cross-calibration and onboard lamp calibration. We proposed a new cross-calibration scheme which uses top-of-atmosphere reflectance functions of satellite zenith angle at temporally and spatially stable ground ...
H. Murakami, T. Tadono, H. Imai, J. Nieke, M. Shimada   +4 more
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Cross Calibration Report

Polymer surfaces are characterized using darkfield, atomic force and confocal microscopy. All three methods are cross calibrated using a common surface topography.
openaire   +1 more source

Cross-calibration of interferometric SAR data

IEE Proceedings - Radar, Sonar and Navigation, 2003
Generation of digital elevation models from interferometric synthetic aperture radar (SAR) data is a well established technique. Achieving a high geometric fidelity calls for a calibration accounting for inaccurate navigation data and system parameters as well as system imperfections.
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Cross-currency smile calibration

2009
We document the numerical aspects of the calibration of cross-currency options on the local volatility framework. We consider the partial differential equation satisfied by the price of the cross-currency option and see that the most important specifications to set are the boundary conditions.
Gabriel Turinici, Marc Laillat
openaire   +1 more source

Multicenter comparison of calibration and cross calibration of PET scanners.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 2002
The purpose of this study was to compare the calibration of PET scanners and their cross calibration to peripheral devices in a multicenter study.Twenty-three dedicated PET scanners were investigated, applying standardized protocols. To ensure exact determination of the activity used, dose calibrators were checked using (68)Ge standards.Nine of 19 and ...
Lilli, Geworski, Bernd O, Knoop, Maike, de Wit, Velimir, Ivancević, Roland, Bares, Dieter L, Munz   +5 more
openaire   +1 more source

Preflight cross-calibration activities at NRLM

Advances in Space Research, 1999
Abstract Many satellites have been and will be launched recently for monitoring the Earth-wide circumstances such as the greenhouse effect. The preflight calibration of the satellite radiometers is the key to obtain the high quality data and to analyze the physical quantity precisely.
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Camera calibration with planar crossed fringe patterns

Optik, 2012
Abstract We introduced a novel crossed fringe pattern as the model plane for camera calibration. It can provide abundant control points, in extreme case each pixel on the CCD sensor can be taken as control points. Fourier Fringe Analysis is used to extract the phase distributions from the image of this pattern.
Yuankun Liu, Xianyu Su
openaire   +1 more source

Cross-calibration of axial DEXA systems

Radiography, 2001
With X-ray equipment, it may not be generally appreciated that no two X-ray tubes are exactly the same. When tubes of the same type and specification are used they never give exactly the same radiation output even when powered identically. This is because even with the latest manufacturing techniques, slight variations do occur, even in the same ...
openaire   +1 more source

Satellite Altimetry: Multi-Mission Cross Calibration

2008
Multi-mission satellite altimetry provides a unique opportunity to perform an innovative, utmost rigorous cross-calibration of all satellites operating simultaneously. Data from TOPEX/Poseidon, ERS-2, GFO, and Jasonl is used to compute — in all combinations — nearly simultaneous single and dual satellite crossovers that are unaffected by sea level ...
Wolfgang Bosch, Roman Savcenko
openaire   +1 more source

Scatterometer Cross-Calibration Using Antarctica as a Calibration Target

IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023
Nathan Porter, David G. Long
openaire   +1 more source