Results 11 to 20 of about 3,854,431 (299)
A Special Unique Solution Case of the Perspective-Three-Point Problem for External Parameter Calibration of an Omnidirectional Camera [PDF]
International Journal of Advanced Robotic Systems, 2012 In the field of machine vision, the multi-solution problem of the perspective-three-point (P3P) camera pose estimation problem has been widely researched.
Xiaoxiao Zhu, Qixin Cao
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Geofluids, 2021 The growth and evolvement features of crack are of great significance to study the failure mechanism of rock mass and valuate the stability of the cavity.
Wen Zhang +4 more
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In-fixture calibration of an S-parameter measuring system by means of time domain reflectometry [PDF]
, 1988 We present a technique which resorts to the time domain capabilities of a vector network analyzer and to the network synthesia tools, in order to perform an in-fixture calibration of the S-parameter measurement system directly to the ports of the device ...
C. Beccari +5 more
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Calibration of ultrafiltration membranes against size exclusion chromatography columns [PDF]
, 2010 Using the extension of the concept of universal calibration parameter, yielding a relation between the hydrodynamic volume of molecules and the elution volume in sizeexclusionchromatography (SEC), to retention coefficients in ultrafiltration (UF), we ...
Aimar, Pierre, Meireles, Martine
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TerraSAR-X Calibration - First Results [PDF]
, 2007 As TerraSAR-X, due for launch in February 2007, will be an operational scientific mission with commercial potential, product quality is of paramount importance.
Markus Bachmann +7 more
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Save the "THRU" in the A.N.A. calibration [PDF]
, 1992 The conventional network analyzer (NWA) two-port calibration procedures require a standard thru line to be connected between the ports. Unfortunately in many applications, for example when measuring MMIC or on-wafer devices with not aligned ports, a ...
FERRERO, ANDREA PIERENRICO +2 more
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Calibration and Research of Unmanned Aerial Vehicle Sensors [PDF]
MATEC Web of ConferencesThis paper focuses on the multi-sensor calibration problem in unmanned aerial vehicle obstacle-avoidance systems, systematically analysing the error characteristics and modelling differences among lidar, vision sensors, ultrasonic sensors, and millimetre-
Xu Qianhao
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External Validation of the Kidney Failure Risk Equation and Re-Calibration with Addition of Ultrasound Parameters [PDF]
Clinical Journal of the American Society of Nephrology, 2016 Progression of CKD toward ESRD is heterogeneous. The Kidney Failure Risk Equation (KFRE) was developed to identify CKD patients at high risk of ESRD. We aimed to externally validate KFRE and to test whether the addition of predefined Duplex ultrasound markers - renal resistive index (RRI) or difference of resistive indices in spleen and kidney (DI-RISK)
Claudia S, Lennartz +10 more
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Наука и техника, 2020 In the operation schemes of optical electronic devices (OED), such as digital autocollimators, direction finders, Shack-Hartmann sensors, as well as astro-orientation systems, projection measuring systems, geometric calibration schemes for OED, the photo-
M. A. Starasotnikau +2 more
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On-Wafer Calibration Algorithm for Partially Leaky Multiport Vector Network Analyzers [PDF]
, 2005 A new solution for multiport vector network analyzer calibration is presented in this paper. The error model is divided in two separate leaky halves, each of them with crosstalk terms, but without the leakage between the two sides.
Ferrero, Andrea Pierenrico +1 more
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