Results 1 to 10 of about 3,001,855 (283)

Geometric Accuracy of PhaseOne PAS Pana [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Due to the currently limited size of CMOS-sensors and the demand for larger capacity imaging systems, camera systems are being used instead of single cameras.
K. Jacobsen, R. Ladstaedter, R. Bosch
doaj   +3 more sources

Integrating Stereo Images and Laser Altimetry Points Derived from the Same Satellite for High-Accuracy Stereo Mapping

open access: yesRemote Sensing, 2023
At present, some mapping satellites, such as GaoFen-7 and ZiYuan3-03, are equipped with both optical stereo cameras and laser altimeters that can synchronously obtain stereo images and sparse ground laser altimetry points (LAPs).
Xinming Tang   +3 more
doaj   +1 more source

High-Precision Attitude Post-Processing and Initial Verification for the ZY-3 Satellite

open access: yesRemote Sensing, 2014
Attitude data, which is the important data strongly correlated with the geometric accuracy of optical remote sensing satellite images, are generally obtained using a real-time Extended Kalman Filter (EKF) with star-tracker and gyro data for current high ...
Xinming Tang   +3 more
doaj   +1 more source

Landsat 8 Operational Land Imager On-Orbit Geometric Calibration and Performance

open access: yesRemote Sensing, 2014
The Landsat 8 spacecraft was launched on 11 February 2013 carrying the Operational Land Imager (OLI) payload for moderate resolution imaging in the visible, near infrared (NIR), and short-wave infrared (SWIR) spectral bands.
James Storey, Michael Choate, Kenton Lee
doaj   +1 more source

A Feasibility Study of Deep Learning-Based Auto-Segmentation Directly Used in VMAT Planning Design and Optimization for Cervical Cancer

open access: yesFrontiers in Oncology, 2022
PurposeTo investigate the dosimetric impact on target volumes and organs at risk (OARs) when unmodified auto-segmented OAR contours are directly used in the design of treatment plans. Materials and MethodsA total of 127 patients with cervical cancer were
Along Chen   +6 more
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

Quality Evaluation of Digital Twins Generated Based on UAV Photogrammetry and TLS: Bridge Case Study

open access: yesRemote Sensing, 2021
In the current modern era of information and technology, emerging remote advancements have been widely established for detailed virtual inspections and assessments of infrastructure assets, especially bridges.
Masoud Mohammadi   +5 more
doaj   +1 more source

Geometric Accuracy Evaluation Method for Subway Stations Based on 3D Laser Scanning

open access: yesApplied Sciences, 2022
The rapid development of three-dimensional (3D) laser scanning technology has provided a new technical means for the geometric accuracy evaluation of subway stations.
Quankai Wang   +5 more
doaj   +1 more source

Evaluating Geometric Measurement Accuracy Based on 3D Reconstruction of Automated Imagery in a Greenhouse

open access: yesSensors, 2018
Geometric dimensions of plants are significant parameters for showing plant dynamic responses to environmental variations. An image-based high-throughput phenotyping platform was developed to automatically measure geometric dimensions of plants in a ...
Jing Zhou   +3 more
doaj   +1 more source

High-Quality UAV-Based Orthophotos for Cadastral Mapping: Guidance for Optimal Flight Configurations

open access: yesRemote Sensing, 2020
During the past years, unmanned aerial vehicles (UAVs) gained importance as a tool to quickly collect high-resolution imagery as base data for cadastral mapping. However, the fact that UAV-derived geospatial information supports decision-making processes
Claudia Stöcker   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy