Results 51 to 60 of about 4,996,434 (258)

EVALUATION OF SAR DATA AS SOURCE OF GROUND CONTROL INFORMATION: FIRST RESULTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The high resolution imaging modes of modern SAR sensors has made SAR data compatible with optical images. SAR data offers various capabilities which can enhance the geometric correction process of optical images (accurate, direct and ground-independent
D. I. Vassilaki   +2 more
doaj   +1 more source

A New Triple Filtering Algorithm and Its Application for Aerial GNSS/INS-Integrated Direct Georeferencing System

open access: yesJ. Sensors, 2021
A global navigation satellite system and inertial navigation system- (GNSS/INS-) integrated system is employed to provide direct georeferencing (DG) in aerial photogrammetry.
Qusen Chen   +4 more
semanticscholar   +1 more source

HIGH-PRECISION POSITIONING AND REAL-TIME DATA PROCESSING OF UAV-SYSTEMS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Available micro-sized Unmanned Aerial Vehicles (UAVs) in the civilian domain currently make use of common GPS receivers and do not address scenarios where high-precision positioning of the UAV is an inevitable requirement.
M. Rieke   +3 more
doaj   +1 more source

The Development of an UAV Borne Direct Georeferenced Photogrammetric Platform for Ground Control Point Free Applications

open access: yesSensors, 2012
To facilitate applications such as environment detection or disaster monitoring, the development of rapid low cost systems for collecting near real time spatial information is very critical.
Chien-Hsun Chu   +2 more
doaj   +1 more source

Split-beam echosounder observations of natural methane seep variability in the northern Gulf of Mexico [PDF]

open access: yes, 2015
A method for positioning and characterizing plumes of bubbles from marine gas seeps using an 18 kHz scientific split-beam echo sounder (SBES) was developed and applied to acoustic observations of plumes of presumed methane gas bubbles originating at ...
Beaudoin, Jonathan   +2 more
core   +2 more sources

Drones and Real-Time Kinematic Base Station Integration for Documenting Inaccessible Ruins: A Case Study Approach

open access: yesDrones
Ruins, marked by decay and abandonment, present challenges for digital documentation due to their varied conditions and remote locations. Surveying inaccessible ruins demands innovative approaches for safety and accuracy.
Daniele Treccani   +2 more
doaj   +1 more source

THE PERFORMANCE ANALYSIS OF A UAV BASED MOBILE MAPPING SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In order to facilitate applications such as environment detection or disaster monitoring, developing a quickly and low cost system to collect near real time spatial information is very important. Such a rapid spatial information collection capability has
M. L. Tsai   +5 more
doaj   +1 more source

Modeling river bed morphology, roughness, and surface sedimentology using high resolution terrestrial laser scanning [PDF]

open access: yes, 2012
Recent advances in technology have revolutionized the acquisition of topographic data, offering new perspectives on the structure and morphology of the Earth's surface.
Brasington, J.   +2 more
core   +2 more sources

Mapping and classification of ecologically sensitive marine habitats using unmanned aerial vehicle (UAV) imagery and object-based image analysis (OBIA) [PDF]

open access: yes, 2018
Nowadays, emerging technologies, such as long-range transmitters, increasingly miniaturized components for positioning, and enhanced imaging sensors, have led to an upsurge in the availability of new ecological applications for remote sensing based on ...
Ardizzone, Domenico   +4 more
core   +1 more source

Cutting Through the Green: A Case for Grassland Archaeology Using UAV Multispectral Data

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Advances in low‐altitude remote sensing are needed to improve the effectiveness of archaeological prospection in the Netherlands. The geomorphological situation and land use history make applying various remote sensing and geophysical technologies particularly challenging.
Roeland Emaus
wiley   +1 more source

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