Results 21 to 30 of about 46,576 (257)
LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING [PDF]
The 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
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Geometric Calibration of an OCT Imaging System [PDF]
2018 IEEE International Conference on Robotics and Automation (ICRA), 2018 This paper deals with an OCT (optical coherence tomography) geometric calibration method. OCT medical imaging system has received a growing interest during the last two decades. In medical purposes, OCT images are generally called optical biopsies which allows in-vivo investigation almost similar to a histopathological study.
Mouloud Ourak +3 more
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Geometric Multispectral Camera Calibration [PDF]
, 2009 A large number of multispectral cameras uses optical bandpass filters to divide the electromagnetic spectrum into passbands. If the filters are placed between the sensor and the lens, the different thicknesses, refraction indices and tilt angles of the filters cause image distortions, which are different for each spectral passband.
Johannes Brauers, Til Aach
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SENSOR CALIBRATION OF THREE-LINE CCD SCANNERS ON ZY-3 [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 ZY-3 is the first Chinese civilian high-resolution stereo mapping satellite. ZY-3 is equipped with three-line scanners (nadir, backward and forward views with 2.5 m and 4.0 m resolutions, respectively) and an additional multispectral scanner.
S. Fang, Y. Chen
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GEOMETRIC CALIBRATION OF ZIYUAN-3 THREE-LINE CAMERAS COMBINING GROUND CONTROL POINTS AND LINES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Due to the large biases between the laboratory-calibrated values of the orientation parameters and their in-orbit true values, the initial direct georeferencing accuracy of the Ziyuan-3 (ZY-3) three-line camera (TLC) images can only reach the kilometre ...
J. Cao +4 more
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On-orbit Geometric Calibration and Preliminary Accuracy Evaluation of GF-14 Satellite [PDF]
Journal of Geodesy and Geoinformation Science, 2023 GF-14 satellite is a new generation of sub-meter stereo surveying and mapping satellite in China, carrying dual-line array stereo mapping cameras to achieve 1:10000 scale topographic mapping without Ground Control Points (GCPs). In fact, space-based high-
Xueliang LU, Jianrong WANG, Xiuce YANG, Yuan LYU, Yan HU, Bincai CAO, Junming ZHOU
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Photonics, 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
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ON-ORBIT GEOMETRIC CALIBRATION APPROACH FOR HIGH-RESOLUTION GEOSTATIONARY OPTICAL SATELLITE GaoFen-4 [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The GaoFen-4 (GF-4) remote sensing satellite is China’s first civilian high-resolution geostationary optical satellite, which has been launched at the end of December 2015.
M. Wang, Y. Cheng, X. Long, B. Yang
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Laboratory Calibration of an Ultraviolet–Visible Imaging Spectropolarimeter
Remote Sensing, 2022 The ultraviolet–visible imaging spectropolarimeter (UVISP), developed by the Anhui Institute of Optics and Fine Mechanics (AIOFM), Chinese Academy of Science (CAS), is a dual-beam snapshot instrument for measuring the spectral, radiometric, and linear ...
Jingjing Shi +6 more
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A TCP Calibration of a 6-Axis Manipulator and Geometric Errors Identification of a Tilting-Rotary Table [PDF]
한국정밀공학회지, 2022 Tool-center-point (TCP) calibration and geometric error identification procedures are proposed to improve the accuracy of a 6-axis manipulator with a tilting rotary table.
Kwang-Il Lee +3 more
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