Results 31 to 40 of about 55,303,286 (181)
INCORRECT MATCH DETECTION METHOD FOR ARCTIC SEA-ICE RECONSTRUCTION USING UAV IMAGES [PDF]
Shapes and surface roughness, which are considered as key indicators in understanding Arctic sea-ice, can be measured from the digital surface model (DSM) of the target area.
J.-I. Kim, H.-C. Kim
doaj +1 more source
Urban Feature Extraction from Merged Airborne LiDAR Data and Digital Camera Data
Until recently, the most highly accurate digital surface models were obtained from airborne lidar. With the development of a new generation of large format digital photogrammetric aerial camera, a fully digital photogrammetric workflow became possible ...
Lamyaa Gamal EL-Deen Taha +3 more
doaj +1 more source
Extraction of the discontinuity orientation from a digital surface model
The traditional field contact measurement for obtaining parameters of the rock mass discontinuity is of low efficiency and big workload, and the accuracy of the results are affected by human factors.
Chengqiang XUAN +2 more
doaj +1 more source
Generation of Digital Surface Model (DSM) USING UAV/ QUADCOPTER
Satellite imageries are being used as primary source of information due to their vast coverage and high temporal resolution. Unnamed Aerial Vehicle (UAV) is being used these days because of its accuracy, autonomous flights, cost effectiveness and rapid overview of data.
Huma Ahmed Hassan +5 more
openaire +1 more source
The traditional particle image velocimetry technique generates a 2D displacement field for landslide monitoring using multi-temporal unmanned aerial vehicle (UAV) orthoimages.
Tee-Ann Teo +4 more
doaj +1 more source
Several global digital elevation models (DEMs) have been developed in the last two decades. The most recent addition to the family of global DEMs is the TanDEM-X DEM.
Jana Marešová +7 more
doaj +1 more source
Digital Surface Model (DSM) is a three-dimensional model presenting the elevation of the Earth’s surface, which can be obtained by the along-track or cross-track stereo images of optical satellites. This paper investigates the DSM extraction method using
Suqin Yin +5 more
doaj +1 more source
Abstract Maize (Zea mays L.) is one of the essential agricultural products in Papua Province of Indonesia, specifically in the three largest maize producing regions, namely Nabire Regency, Biak Numfor Regency and Merauke Regency, with the number of productions of 991 tons, 764 tons, and 751 tons respectively in 2015. Unfortunately, since
Sri Murniani Angelina Letsoin +3 more
openaire +1 more source
Impact of flight altitude and cover orientation on Digital Surface Model (DSM) accuracy for flood damage assessment in Murcia (Spain) using a fixed-wing UAV [PDF]
AbstractSoil erosion, rapid geomorphological change and vegetation degradation are major threats to the human and natural environment. Unmanned Aerial Systems (UAS) can be used as tools to provide detailed and accurate estimations of landscape change. The effect of flight strategy on the accuracy of UAS image data products, typically a digital surface ...
Niels S. Anders +5 more
openaire +5 more sources
STATE OF THE ART IN DIGITAL SURFACE MODELLING FROM MULTI-VIEW HIGH-RESOLUTION SATELLITE IMAGES [PDF]
Data from the optical satellite imaging sensors running 24/7, is collecting in embarrassing abundance nowadays. Besides more suitable for large-scale mapping, multi-view high-resolution satellite images (HRSI) are cheaper when comparing to Light ...
Y. Han +5 more
doaj +1 more source

