Results 41 to 50 of about 263,208 (290)
Sensors, 2011 LiDAR (Light Detection And Ranging) systems are capable of providing 3D positional and spectral information (in the utilized spectrum range) of the mapped surface.
Wai-Yeung Yan +3 more
doaj +1 more source
THE FUTURE SPACEBORNE HYPERSPECTRAL IMAGER ENMAP: ITS IN-FLIGHT RADIOMETRIC AND GEOMETRIC CALIBRATION CONCEPT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 The German Aerospace Center DLR – namely the Earth Observation Center EOC and the German Space Operations Center GSOC – is responsible for the establishment of the ground segment of the future German hyperspectral satellite mission EnMAP ...
M. Schneider +6 more
doaj +1 more source
On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera
Remote Sensing, 2022 The Directional Polarimetric Camera (DPC) carried by the Chinese GaoFen-5-02 (GF-5-02) satellite has the ability for multiangle, multispectral, and polarization detection and will play an important role in the inversion of atmospheric aerosol and cloud ...
Guangfeng Xiang +7 more
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Geometrical Self-Calibration of CBCT Systems
e-Journal of Nondestructive Testing, 2023 In this paper, we intend to provide a method for calibration of geometric CBCT systems without the need for phantom and prior knowledge related to the object which is normally used in 2D-3D registration methods for geometrical calibration. To this end, we use an iterative algorithm based on comparison between measured data and DRRs1 which are obtained
Amirhossein Saedpanah +3 more
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Geometric calibration of large-scale SAR images using wind turbines as ground control points
International Journal of Digital EarthThe geometric positioning accuracy of synthetic aperture radar images is a key factor impacting their application, necessitating geometric calibration for improved accuracy.
Mengrong Xi +7 more
doaj +1 more source
CALIBRATION AND STABILITY ANALYSIS OF THE VLP-16 LASER SCANNER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 We report on a calibration and stability analysis of the Velodyne VLP-16 LiDAR scanner. The sensor is evaluated for long-term stability, geometric calibration and the effect of temperature variations.
C. L. Glennie, A. Kusari, A. Facchin
doaj +1 more source
Geometric Parameter Self-Calibration Based on Projection Feature Matching for X-Ray Nanotomography
Applied Sciences, 2022 The mismatch of geometric parameters in a nanotomography system bears a significant impact on the reconstructed images. Moreover, projection image noise is increased due to limitations of the X-ray power source.
Shuangzhan Yang +7 more
doaj +1 more source
Spatial geometrical calibration of optoelectronic devices
E3S Web of Conferences, 2023 Space equipment experiences high thermal and mechanical loads that cause deformation of its structures, as well as elements of optical systems and radiation receivers, which can lead to changes in the mutual position of the optoelectronic device elements, disturbing its alignment, degrading image quality and increasing pointing errors.
Zhukov Aleksandr +5 more
openaire +2 more sources
A taxonomy of camera calibration and video projection correction methods
EAI Endorsed Transactions on Creative Technologies, 2015 This paper provides a classification of calibration methods for cameras and projectors. From basic homography to complex geometric calibration methods, this paper aims at simplifying the choice of the methods to perform a calibration regarding the ...
Radhwan Ben Madhkour +2 more
doaj +1 more source
Updating predictive accident models of modern rural single carriageway A-roads [PDF]
, 2012 Reliable predictive accident models (PAMs) are essential to design and maintain safe road networks and yet the models most commonly used in the UK were derived using data collected 20 to 30 years ago.
Alan G. Wood +4 more
core +1 more source