Results 51 to 60 of about 11,860 (213)
Fast Digital Orthophoto Generation: A Comparative Study of Explicit and Implicit Methods
Remote SensingA digital orthophoto is an image with geometric accuracy and no distortion. It is acquired through a top view of the scene and finds widespread applications in map creation, planning, and related fields.
Jianlin Lv +3 more
doaj +1 more source
Marine litter can shift sea turtle nests toward the shoreline
Oikos, EarlyView.Marine litter is an emerging threat to sea turtle rookeries, yet its effects on nesting behaviour remain poorly understood. In this study, we investigated how macro‐litter accumulation on beaches influences the spatial distribution of loggerhead turtle Caretta caretta nests on Boa Vista Island, Cabo Verde.
Diana Sousa‐Guedes +4 more
wiley +1 more source
Multi-hazard risk assessment using GIS in urban areas: a case study for the city of Turrialba, Costa Rica [PDF]
, 2002 In the framework of the UNESCO sponsored project on “Capacity Building for Natural Disaster Reduction” a case study was carried out on multi-hazard risk assessment of the city of Turrialba, located in the central part of Costa Rica.
Badilla Coto, Elena +3 more
core +2 more sources
Copernicus's Heliograph at Olsztyn -- the 500th Anniversary of a Scientific Milestone
, 2017 Exactly 500 years ago, Nicolaus Copernicus drew a lattice of lines on a panel above the doorway to his rooms at Olsztyn Castle, then in the Bishopric of Warmia.
Fischer, Gordon, Graßhoff, Gerd
core +1 more source
People and Nature, EarlyView.Abstract Remote sensing studies show that ephemeral forest regeneration is widespread in the tropics, limiting the climate and biodiversity benefits from net increases in forest cover. Socioeconomic, biophysical and landscape variables can help explain the spatial distribution of reforestation reversals.
Francis H. Joyce
wiley +1 more source
Extracting building heights from lidar data for the purpose of creating true orthphoto [PDF]
, 2012 Classical orthophoto has some disadvantages, which are eliminated in the process of generating true orthophoto. True orthophoto is generated from aerial photographs and digital surface model (DSM) in a process of enhanced orthorectification.
Ritlop, Klemen
core
Positional Precision Analysis of Orthomosaics Derived from Drone Captured Aerial Imagery [PDF]
, 2019 The advancement of drones has revolutionized the production of aerial imagery. Using a drone with its associated flight control and image processing applications, a high resolution orthorectified mosaic from multiple individual aerial images can be ...
Hung, I-Kuai +3 more
core +2 more sources
Meander‐Bend Erosion Dynamics Along a Gravel‐Bed River: Insights From Short‐Term UAV Monitoring
River Research and Applications, EarlyView.ABSTRACT Riverbank erosion is a natural process in meandering rivers that contributes to sediment supply and geomorphic diversity, yet it can threaten infrastructure and human activities within the floodplain. Recently, many studies have used high‐resolution remote sensing technologies to measure bank erosion, but they often focus on technical aspects ...
Katarina Pavlek +2 more
wiley +1 more source
Integration of Photogrammetry and Geographic Information System (GIS) in Digital Mapping Production [PDF]
Engineering and Technology Journal, 2010 This research introduce the utilization of Geographic InformationSystem (GIS) and photogrammetry in digital map production. An aerialstereopair was used to produce an orthophoto by ERDAS LPS software.The Arc GIS software then used to prepare a digital ...
Afrah M. Daham
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Accurately estimating forest age is key to understanding how forests recover and evaluating restoration success. We developed a two‐step deep learning approach using historical greyscale aerial photographs to map forest age at fine spatial scales. By combining a pre‐trained model with localized fine‐tuning, our U‐Net + ResNet50 architecture achieved ...
Ying Ki Law +10 more
wiley +1 more source