Results 31 to 40 of about 127,780 (300)

Comparison between Plane and Stereo Block Adjustment for ZY-3 Satellite Images [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2018
Block adjustment for satellite images cannot be solved with weak convergence geometric conditions,therefore a plane block adjustment method to improve the targeting precision of images is proposed utilizing DEM as height constraint plane block adjustment
Taoyang WANG,Guo ZHANG,Deren LI,Wanshou JIANG,Xinming TANG,Xuelin LIU
doaj  

Using direct linear transformation (DLT) method for aerial photogrammetry applications

open access: yesGeodesy and Cartography, 2018
DLT has gained a wide popularity in close range photogrammetry, computer vision, robotics, and biomechanics. The wide popularity of the DLT is due to the linear formulation of the relationship between image and object space coordinates.
Khalid L. A. El-Ashmawy
doaj   +1 more source

ALGORITHM AND APPLICATION OF GCP-INDEPENDENT BLOCK ADJUSTMENT FOR SUPER LARGE-SCALE DOMESTIC HIGH RESOLUTION OPTICAL SATELLITE IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The accurate positioning of optical satellite image without control is the precondition for remote sensing application and small/medium scale mapping in large abroad areas or with large-scale images.
Y. S. Sun, L. Zhang, B. Xu, Y. Zhang
doaj   +1 more source

Satellite Remote Sensing Image Stereoscopic Positioning Accuracy Promotion Based on Joint Block Adjustment With ICESat-2 Laser Altimetry Data

open access: yesIEEE Access, 2021
The next generation Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2)/Advanced Topographic Laser Altimeter System (ATLAS) was launched in 2018 to provide large amounts of spaceborne laser altimetry data.
Xinlei Zhang   +5 more
doaj   +1 more source

Geo-Positioning Accuracy Improvement of Multi-Mode GF-3 Satellite SAR Imagery Based on Error Sources Analysis

open access: yesSensors, 2018
The GaoFen-3 (GF-3) satellite is the only synthetic aperture radar (SAR) satellite in the High-Resolution Earth Observation System Project, which is the first C-band full-polarization SAR satellite in China.
Niangang Jiao   +4 more
doaj   +1 more source

Radiometric Block Adjustment for Multi-Strip Airborne Waveform Lidar Data

open access: yesRemote Sensing, 2015
The airborne lidar system has been shown to be an effective and reliable method for spatial data collection. Lidar records the coordinates of point and intensity, dependent on range, incident angle, reflectivity of object, atmospheric condition, and ...
Tee-Ann Teo, Hsien-Ming Wu
doaj   +1 more source

RFM-Based Block Adjustment for Spaceborne Images with Weak Convergent Geometry [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Block adjustment is one of the most important processing steps in topographic mapping. In order to achieve precise 3D photogrammetry points, the ratio of base-to-height(RBH) or the forward intersection angle(FIA) of stereo images should meet the ...
C. Q. Cheng, J. X. Zhang, G. M. Huang
doaj   +1 more source

Vertical Accuracy Simulation of Stereo Mapping Using a Small Matrix Charge-Coupled Device

open access: yesRemote Sensing, 2017
At present, without ground control points (GCPs), the positioning accuracy of remote sensing images often fails to meet the growing requirements for mapping accuracy. Multi-load synergy to improve accuracy without GCPs by eliminating the impact of stereo
Zhichao Guan, Yonghua Jiang, Guo Zhang
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Geometric Positioning Accuracy Improvement of ZY-3 Satellite Imagery Based on Statistical Learning Theory

open access: yesSensors, 2018
With the increasing demand for high-resolution remote sensing images for mapping and monitoring the Earth’s environment, geometric positioning accuracy improvement plays a significant role in the image preprocessing step.
Niangang Jiao   +4 more
doaj   +1 more source

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