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HYBRID GEOMETRIC CALIBRATION METHOD FOR MULTI-PLATFORM SPACEBORNE SAR IMAGE WITH SPARSE GCPS
SAR image geometric calibration R-D model multi-platform TerraSAR-X TanDEM-X Gaofen-3
2018/5/15
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). H...
ON-ORBIT GEOMETRIC CALIBRATION APPROACH FOR HIGH-RESOLUTION GEOSTATIONARY OPTICAL SATELLITE GaoFen-4
GaoFen-4 high-resolution geostationary optical satellite on-orbit geometric calibration two-dimensional direction angle model geometric accuracy
2016/7/4
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. To guarantee the geometric ...
LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING
high-resolution optical satellite low frequency error star sensor uncontrolled geometric positioning
2016/7/4
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 pre...
Estimation of Opto-Mechanical Parameters for Calibration of Laser Scanners
calibration terrestrial laser scanner ray tracing Accuracy coordinate system adjustment
2015/12/8
Within this paper an approach of calibration for a terrestrial laser scanner with two mirrors driven by two galvanometers is presented. This includes a mathematical model for the interior of the laser...
RADIOMETRIC CALIBRATION OF ALS INTENSITY
Laser Scanning Radiometric Calibration Laboratory Measurements
2015/11/10
We have developed a new concept of empirical calibration scheme for airborne laser scanner (ALS) intensity by means of portablebrightness calibration targets, which can be laid out in the flight targe...
permanent validation of the geometric calibration as complement to misr data production system
Automation Calibration Rectification Registration Pushbroom Quality Geometric Modeling
2015/9/1
This paper focuses on the validation aspect of the geometric calibration approach as implemented for the M...
Calibration of fisheye camera systems and the reduction of chromatic aberration
Camera calibration fisheye panorama chromatic aberration mobile mapping omni-directional imaging
2015/8/25
This paper reports on the camera calibration procedure developed at CycloMedia and its modification for the reduction of chromatic aberration for further improvement of CycloMedia’s main product: 360o...
NEW CALIBRATION SCHEME FOR PANORAMIC LINE SCANNERS
Line-Scanner Calibration Diffractive Optical Elements Spatial Light Modulator
2015/7/31
In the DLR department of optical information technology exists long experience and practical knowledge in geometrical calibration of opto-elctronical systems especially CCD-line scanners. An approved ...
IN-FLIGHT CAMERA CALIBRATION FOR DIRECT GEOREFERENCING
Accuracy Calibration Camera Georeferencing GPS/INS Orientation
2015/5/29
Direct georeferencing is increasingly applied in connection of the photogrammetric film cameras. The prerequisite for the use of this technique is an airborne system calibration. The calibration issue...
About the Calibration of LiDAR Sensors
Laser-Scanning Laser Altimetry LIDAR calibration error sources sensor design bore-sight alignment
2015/5/26
Over the past years airborne laser-scanning has become the primary choice for gathering precise and dense digital elevation models
(DEM) of large areas for a wide range of applications. It is presen...
TWO NEW ALGORITHMS TO RETRIEVE THE CALIBRATION MATRIX FROM THE 3-D PROJECTIVE CAMERA MODEL
DLT Calibration Matrix Cholesky Factorization
2015/3/25
By relating the projective camera model to the perspective one, using homogenous coordinates representation, the interior
orientation parameters constitute what is called the calibration matrix. Thi...