Results 11 to 20 of about 43,204 (241)

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

INDEPENDENT ON-ORBIT GEOMETRIC CALIBRATION OF OPTICAL SATELLITE BASED ON WEIGHTED VIRTUAL OBSERVATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
On-orbit geometric calibration is an essential technology to improve the initial geometric accuracy of the optical satellite images. The presented methods usually take the absolute constraint from calibration site data into the imaging model to deduce ...
B. Yang, Y. Pi
doaj   +1 more source

On-Orbit Geometric Calibration Model and Its Applications for High-Resolution Optical Satellite Imagery

open access: yesRemote Sensing, 2014
On-orbit geometric calibration is a key technology to guarantee the geometric quality of high-resolution optical satellite imagery. In this paper, we present an approach for the on-orbit geometric calibration of high-resolution optical satellite imagery,
Mi Wang, Bo Yang, Fen Hu, Xi Zang
doaj   +1 more source

Hyperhemispheric Lens Geometric Calibration

open access: yes, 2022
In this report we will show the calibration procedure and the obtained results for the definition of the intrinsic parameters of a wide-angle lens through the use of a set of acquisitions of a well-known calibration target. In this case the method is applied to INAF payload panoramic hereafter called BPL (Bifocal Panoramic Lens)
CORAN, GIACOMO   +3 more
openaire   +2 more sources

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   +3 more sources

Improvement of Gaofen-3 Absolute Positioning Accuracy Based on Cross-Calibration

open access: yesSensors, 2017
The Chinese Gaofen-3 (GF-3) mission was launched in August 2016, equipped with a full polarimetric synthetic aperture radar (SAR) sensor in the C-band, with a resolution of up to 1 m.
Mingjun Deng   +4 more
doaj   +1 more source

Fisheye Lens Geometric Calibration

open access: yes, 2022
In this report we will show the calibration procedure and the obtained results for the definition of the intrinsic parameters of a wide-angle system through the use of a set of acquisitions of a well-known calibration target. In this case the method is applied to a Fujinon fish-eye camera hereafter called FEL (Fish-Eye Lens).
CORAN, GIACOMO   +3 more
openaire   +2 more sources

LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The low frequency error is a key factor which has affected uncontrolled geometry processing accuracy of the high-resolution optical image. To guarantee the geometric quality of imagery, this paper presents an on-orbit calibration method for the low ...
M. Wang, C. Fang, B. Yang, Y. Cheng
doaj   +1 more source

Geometric Parameters Calibration of Focused Light Field Camera Based on Edge Spread Information Fitting

open access: yesPhotonics, 2023
In this paper, a novel method based on edge spread information fitting (ESIF) is proposed to accurately calibrate the geometric parameters of a focused light field camera.
Wei Feng   +4 more
doaj   +1 more source

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