Results 21 to 30 of about 9,293 (214)
High-Precision Attitude Post-Processing and Initial Verification for the ZY-3 Satellite
Remote 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
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Landsat 8 Operational Land Imager On-Orbit Geometric Calibration and Performance
Remote 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
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Remote 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
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High-Quality UAV-Based Orthophotos for Cadastral Mapping: Guidance for Optimal Flight Configurations
Remote 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
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Geometric Accuracy Analysis of Regional Block Adjustment Using GF-7 Stereo Images without GCPs
Remote Sensing, 2023 As an important means of improving positioning accuracy, block adjustment has been used in the improvement and assessment of accuracy for the Chinese Gaofen-7 (GF-7) satellite.
Xinming Tang +3 more
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Metals, 2023 Electrical discharge machining (EDM) is one of the important machining processes to produce mold components. When using the EDM process, surface quality, processing time, accuracy, and electrode cost must be considered.
Shih-Ming Wang +4 more
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Advancements in Hole Quality for AISI 1045 Steel Using Helical Milling
Journal of Manufacturing and Materials ProcessingHelical milling presents a promising alternative to conventional drilling for hole production, offering superior surface quality and improved production efficiency.
Pedro Mendes Silva +3 more
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Sensors, 2020 Accurate elevation data, which can be extracted from very high-resolution (VHR) satellite images, are vital for many engineering and land planning applications.
Manuel A. Aguilar +3 more
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Numerical Simulation of Stagger Spinning of Cylindrical Part with Cross Inner Ribs
Shanghai Jiaotong Daxue xuebao, 2022 Flow spinning is an advantageous technology in forming thin-walled cylindrical parts, but for cylindrical parts with inner ribs,the height of the inner ribs that can be formed is limited.
ZHOU Yu, ZHAO Yong, YU Zhongqi, ZHAO Yixi
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Optimizing the Geometrical Accuracy of 2D Curvilinear Meshes
Procedia Engineering, 2014 AbstractThis paper presents a method to generate valid 2D high order meshes with optimized geometrical accuracy. The high order meshing procedure starts with a straight sided mesh. High order points are initially snapped to the real geometry without taking care of the validity of the high order elements.
Remacle, Jean-François +3 more
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