Results 61 to 70 of about 9,313 (161)

Determination of present-day crustal deformation along the Kenyan rift system using InSAR

Earth, Planets and Space
The Kenyan rift system is prone to deformation due to various geological processes and human activities, such as overexploitation of groundwater and exploitation of geothermal energy.
Pius Kipng’etich Kirui, Bjorn Riedel, Markus Gerke   +2 more
doaj   +1 more source

VOLUME COMPUTATION OF A STOCKPILE – A STUDY CASE COMPARING GPS AND UAV MEASUREMENTS IN AN OPEN PIT QUARRY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The following paper aims to test and evaluate the accuracy of UAV data for volumetric measurements to the conventional GNSS techniques. For this purpose, an appropriate open pit quarry has been chosen. Two sets of measurements were performed.
P. L. Raeva, S. L. Filipova, D. G. Filipov   +2 more
doaj   +1 more source

Classification of airborne laser scanning point clouds based on binomial logistic regression analysis [PDF]

, 2014
This article presents a newly developed procedure for the classification of airborne laser scanning (ALS) point clouds, based on binomial logistic regression analysis. By using a feature space containing a large number of adaptable geometrical parameters,
Briese, Christian, De Maeyer, Philippe, De Wulf, Alain, Dorninger, Peter, Nuttens, Timothy, Pfeifer, Norbert, Stal, Cornelis   +6 more
core   +2 more sources

Use of UAVs for technical inspection of buildings within the BRAIN massive inspection platform [PDF]

, 2019
Unmanned Aerial Vehicles (UAVs) are becoming more and more popular for use in a various sectors of the economy. The paper presents the results of experiments using a UAV, equipped with a high resolution digital camera, for a visual assessment of ...
Banaszek, Anna, Cellmer, Anna, Gibert Armengol, Vicente, Serrat Piè, Carles   +3 more
core   +2 more sources

Dense 3D displacement estimation for landslide monitoring via fusion of TLS point clouds and embedded RGB images

International Journal of Applied Earth Observations and Geoinformation
Landslide monitoring is essential for understanding geohazards and mitigating associated risks. Existing point cloud-based methods, however, typically rely on either geometric or radiometric information and often yield sparse or non-3D displacement ...
Zhaoyi Wang, Jemil Avers Butt, Shengyu Huang, Tomislav Medić, Andreas Wieser   +4 more
doaj   +1 more source

Long-period surface motion of the multi-patch Mw9.0 Tohoku-Oki earthquake [PDF]

, 2014
We show that it is possible to capture the oscillatory ground motion induced by the Tohoku-Oki event for periods ranging from 3 to 100s using Precise Point Positioning (PPP).
Anderson, Aoi, Aoi, Assimaki, Avallone, Behrens, Blewitt, Blewitt, Blewitt, Bock, Bock, Bock, Boore, Branzanti, Cauzzi, Chávez-García, Clotaire Michel, Crowell, Dach, Dach, Delouis, Denolle, Ducic, Emore, Feng, Galvan, Ge, Guo, Houlié, Houlié, Houlié, Houlié, Hurter, Ji, Jokinen, Karia, Kobayashi, Koketsu, Koketsu, Larson, Lermo, Li, Li, Liu, Maercklin, Mai, Mamula, Margaris, Markus Rothacher, Melgar, Meng, Michael Meindl, Mitsui, Miyazaki, Moschas, Newman, Nicolas Houlié, O'Toole, O'Toole, Ohta, Ohta, Panos A. Psimoulis, Perler, Psimoulis, Psimoulis, Psimoulis, Psimoulis, Roten, Roten, Sagiya, Singh, Sobolev, Stewart, Stiros, Suzuki, Tu, Vigny, Wang, Wright, Yagi, Yamanaka, Yokota, Yue, Zhao, Çelebi   +84 more
core   +3 more sources

Structure from motion (SfM) processing of UAV images and combination with terrestrial laser scanning, applied for a 3D-documentation in a hazardous situation

Geomatics, Natural Hazards & Risk, 2017
The integration of Terrestrial Laser Scanning (TLS) and Structure from Motion and MultiView Stereo techniques allows to obtain comprehensive models of complex objects by using each technique in contexts presenting the optimal operating conditions, as ...
Isabel Martínez-Espejo Zaragoza, Gabriella Caroti, Andrea Piemonte, Björn Riedel, Dieter Tengen, Wolfgang Niemeier   +5 more
doaj   +1 more source

Automatic in-situ radiometric calibration for mobile laser scanning: Compensating for distance and angle of incidence effects [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Laser scanner intensity data provide valuable insights into material properties, enabling applications such as point cloud segmentation and material probing.
H. Laasch, T. Medic, A. Wieser
doaj   +1 more source

Evaluating Repeatability of RTK GPS/GLONASS Near/Under Forest Environment

Croatian Journal of Forest Engineering, 2010
Until the mid-1990s, post-processing was the only method available to determine survey- grade positions using GPS. Anew method was then introduced called Real-Time Kinematic (RTK). Real Time Kinematic surveying is an advanced form of relative GPS carrier
Atinç Pirti, Kutalmiş Gümüş, Halil Erkaya, Ramazan Gürsel Hoşbaş   +3 more
doaj  

Geospatial Analysis of Emergency Incidents and Disaster Response Management in Oton, Iloilo [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Efficient emergency response, which is one of the main pillars of the Philippine Disaster Risk Reduction and Management (DRRM) framework, is critical in saving lives and properties especially when it comes to dispatch times and coverage areas. Thus, this
L. J. A. Aporto, J. D. D. Casisirano, L. M. Garcia, P. F. R. Maralit, M. G. Ugalino Jr., K. E. M. Aguilan, A. F. P. Florin, K. M. C. Tablang, F. J. O. Pamittan, D. C. Fargas Jr., C. J. S. Sarmiento   +10 more
doaj   +1 more source