Results 51 to 60 of about 13,127,977 (103)

Onboard utilization of ground control points for image correction. Volume 1: Executive summary [PDF]

, 1981
Operation of a navigation system, centered around image correction, was simulated and the system performance was analyzed. Onboard utilization of ground control points for image correction is summarized. Simulation results, and recommendations for future

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THE USE OF UNMANNED AERIAL VEHICLES FOR CADASTRAL MAPPING IN GHANA-ASSESSING THE EFFECT OF VARYING SENSOR TYPES, FLYING HEIGHT, IMAGE OVERLAP AND GROUND CONTROL POINT DENSITY

African Journal on Land Policy and Geospatial Sciences, 2022
Context and background In Ghana the predominant method for performing cadastral surveys is through the use of Global Navigation Satellite Systems (GNSS) static surveys and to a lesser extent Total Stations.
Mark Brookman-Amissah
doaj   +1 more source

Quality assessment of selected ground control points of project CAS 2012-2014 [PDF]

, 2015
The purpose of this graduation thesis, placed in a selected area aerial photography (photogrammetric\ud block number 9, of the treaty of cyclic aerial photography of Slovenia in 2012), is to check the quality\ud of ground control points in the new ...
Medved, Andreja
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Uncertainty Analysis for Image-Based Streamflow Measurement: The Influence of Ground Control Points

, 2022
Large-scale particle image velocimetry (LSPIV) provides a cost-effective, rapid, and secure monitoring tool for streamflow measurements. However, surveys of ground control points (GCPs) might affect the camera parameters through the solution of ...
Wen-Cheng Liu, Chih-Chieh Young, Wei-Che Huang   +2 more
core   +1 more source

Automating Ground Control Point Detection in Drone Imagery: From Computer Vision to Deep Learning

Remote Sensing
Drone-based photogrammetry typically requires the task of georeferencing aerial images by detecting the center of Ground Control Points (GCPs) placed in the field. Since this is a very labor-intensive task, it could benefit greatly from automation.
Gonzalo Muradás Odriozola, Klaas Pauly, Samuel Oswald, Dries Raymaekers   +3 more
doaj   +1 more source

Research on Time Series Monitoring of Surface Deformation in Tongliao Urban Area Based on SBAS-PS-DS-InSAR

Sensors
As urban economies flourish and populations become increasingly concentrated, urban surface deformation has emerged as a critical factor in city planning that cannot be overlooked. Surface deformation in urban areas can lead to deformations in structural
Yuejuan Chen, Cong Ding, Pingping Huang, Bo Yin, Weixian Tan, Yaolong Qi, Wei Xu, Siai Du   +7 more
doaj   +1 more source

Geometric calibration of large-scale SAR images using wind turbines as ground control points

International Journal of Digital Earth
The geometric positioning accuracy of synthetic aperture radar images is a key factor impacting their application, necessitating geometric calibration for improved accuracy.
Mengrong Xi, Yongjiu Feng, Zhenkun Lei, Pengshuo Li, Rong Wang, Panli Tang, Xiaoyan Tang, Xiaohua Tong   +7 more
doaj   +1 more source

Development of Operational Applications for TerraSAR-X

Remote Sensing, 2018
In the course of the TerraSAR-X mission, various new applications based on X-Band Synthetic Aperture Radar (SAR) data have been developed and made available as operational products or services.
Oliver Lang, Parivash Lumsdon, Diana Walter, Jan Anderssohn, Wolfgang Koppe, Jüergen Janoth, Tamer Koban, Christoph Stahl   +7 more
doaj   +1 more source

Proceedings New Technology for Ground Control in Retreat Mining [PDF]

"The proceedings of a series of technology transfer seminars entitled New Technology for Ground Control in Retreat Mining sponsored by NIOSH were presented.

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Ground reference points in legged locomotion: Definitions, biological trajectories and control implications

, 2005
The Zero Moment Point (ZMP) and Centroidal Moment Pivot (CMP) are important ground reference points used for motion identification and control in biomechanics and legged robotics. Using a consistent mathematical notation, we define and compare the ground
Hugh Herr, Marko B., Marko B. Popovic
core   +1 more source