Results 11 to 20 of about 1,029,905 (279)

A Geometric Proof of Calibration [PDF]

open access: yesMathematics of Operations Research, 2010
We provide yet another proof of the existence of calibrated forecasters; it has two merits. First, it is valid for an arbitrary finite number of outcomes. Second, it is short and simple and it follows from a direct application of Blackwell's approachability theorem to a carefully chosen vector-valued payoff function and convex target set.
Stoltz, Gilles, Mannor, Shie
openaire   +4 more sources

Quantification of geometric uncertainties in image guided radiotherapy [PDF]

open access: yes, 2010
The aim of this thesis is to determine if the geometric uncertainties that are introduced into the image guided radiotherapy (IGRT) process by Cone Beam CT (CBCT) based IGRT equipment are sufficiently small that they do not pose a significant risk of ...
Sykes, Jonathan
core   +6 more sources

First Assessment of Bistatic Geometric Calibration and Geolocation Accuracy of Innovative Spaceborne Synthetic Aperture Radar LuTan-1

open access: yesRemote Sensing, 2023
LuTan-1 (LT-1) is a bistatic synthetic aperture radar (BiSAR) system consisting of two identical L-band SAR satellites. The bistatic mode of LT-1 plays a critical role in generating high-precision digital elevation models (DEMs), which requires precise ...
Jingwen Mou   +6 more
doaj   +1 more source

HYBRID GEOMETRIC CALIBRATION METHOD FOR MULTI-PLATFORM SPACEBORNE SAR IMAGE WITH SPARSE GCPS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Geometric calibration is able to provide high-accuracy geometric coordinates of spaceborne SAR image through accurate geometric parameters in the Range-Doppler model by ground control points (GCPs).
G. Lv   +5 more
doaj   +1 more source

Method for Determining Elements of Internal Orientation Calibration in Multi-Matrix Optoelectronic Devices

open access: yesНаука 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
doaj   +1 more source

Hierarchical Task Based Process Planning For Machine Tool Calibration [PDF]

open access: yes, 2011
A literature search has indicated that artificially intelligent planners have not previously been used to address the planning problem of machine tool calibration, even though there are potential advantages.
Longstaff, Andrew P.   +5 more
core   +3 more sources

Geometric Calibration of the ESA Mars Express Orbiter High Resolution Stereo Camera

open access: yesEarth and Space Science, 2023
The high‐resolution stereo camera mounted on the Mars Express (MEX) spacecraft of the European Space Agency is specifically designed for planetary photogrammetry and mapping missions.
D. Li   +5 more
doaj   +1 more source

A Spliced Satellite Optical Camera Geometric Calibration Method Based on Inter-Chip Geometry Constraints

open access: yesRemote Sensing, 2021
When in orbit, spliced satellite optical cameras are affected by various factors that degrade the actual image stitching precision and the accuracy of their data products. This is a major bottleneck in the current remote sensing technology.
Tao Wang   +6 more
doaj   +1 more source

Calibration of geometric distortion in the ACS detectors [PDF]

open access: yesSPIE Proceedings, 2003
The off-axis location of the Advanced Camera for Surveys (ACS) is the chief (but not sole) cause of strong geometric distortion in all detectors: the Wide Field Camera (WFC), High Resolution Camera (HRC), and Solar Blind Camera (SBC). Dithered observations of rich star cluster fields are used to calibrate the distortion.
Meurer, G. R.   +11 more
openaire   +2 more sources

Automatic planning for machine tool calibration: A case study [PDF]

open access: yes, 2012
Machine tool owners require knowledge of their machine’s capabilities, and the emphasis increases with areas of high accuracy manufacturing. An aspect of a machine’s capability is its geometric accuracy. International Standards and best-practice guides
P. Gregory   +13 more
core   +1 more source

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