Results 61 to 70 of about 2,991,442 (236)

Integration of Photogrammetry and Geographic Information System (GIS) in Digital Mapping Production [PDF]

open access: yesEngineering 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

Using Orthophoto for Building Boundary Sharpening in the Digital Surface Model

open access: yesCoRR, 2019
Nowadays dense stereo matching has become one of the dominant tools in 3D reconstruction of urban regions for its low cost and high flexibility in generating dense 3D points. However, state-of-the-art stereo matching algorithms usually apply a semi-global matching (SGM) strategy.
Xiaohu Lu, Rongjun Qin, Xu Huang 0005
openaire   +2 more sources

Automated object detection based on YOLOv11 for monitoring benthic population dynamics: A new approach combining photogrammetry and open‐source GIS tools applied to sea cucumbers

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This research established a new object detection model based on YOLOv11 to recognise benthic organisms, specifically sea cucumbers, by utilising high‐resolution photogrammetric‐based orthomosaics acquired along infralittoral Mediterranean Sea beds. The model demonstrated impressive performance metrics and, when combined with the Deepness plugin for the
Gian Mario Sangiovanni   +9 more
wiley   +1 more source

Retrospective image analysis for long‐term demography using Google Earth imagery

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution Google Earth imagery, combined with minimal field validation, enables retrospective tracking of individual invasive plants. The image shows one of the monitored individuals of Opuntia sp. in Greece. Our approach reveals long‐term demographic patterns, recruitment dynamics, and spatial expansion without continuous ...
Erola Fenollosa   +2 more
wiley   +1 more source

Fotogrametria digital à curta distância na documentação do patrimônio arquitetônico: estudo de caso [PDF]

open access: yes, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Arquitetura e UrbanismoEste trabalho aborda a técnica da Fotogrametria Digital à Curta Distância como uma ferramenta importante de auxílio à
Yanaga, Silvia Sayuri
core  

Pushbroom Hyperspectral Data Orientation by Combining Feature-Based and Area-Based Co-Registration Techniques

open access: yesRemote Sensing, 2018
Direct georeferencing of airborne pushbroom scanner data usually suffers from the limited precision of navigation sensors onboard of the aircraft. The bundle adjustment of images and orientation parameters, used to perform geocorrection of frame images ...
Kévin Barbieux
doaj   +1 more source

SATELLITE 'CANOPUS-V' IMAGE PROCESSING TECHNOLOGY DEVELOPMENT FOR CARTOGRAPHY PURPOSES BASED ON PRELAUNCH SIMULATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
“Canopus-V” satellite payload consists of two cameras – one of them panchromatic with 2.1 m GSD, another multispectral with 10 m GSD. Navigation system accuracy provides georeference accuracy about 70-80 m without using of control points.
V. V. Nekrasov, E. Makusheva
doaj   +1 more source

Monitoring of Crustose Coralline Algae Using Low‐Altitude Unmanned Aerial Vehicles in Intertidal Reefs

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
High‐resolution visible‐light imagery from low‐altitude unmanned aerial vehicles, combined with superpixel segmentation and a Random Forest classifier, provides an efficient and scalable framework for mapping and monitoring crustose coralline algae and reef habitats.
Po‐Chien Lin   +2 more
wiley   +1 more source

An object-based approach for tree species extraction from digital orthophoto maps

open access: yes, 2018
. Tree segmentation is an active and ongoing research area in the field of photogrammetry and remote sensing. It is more challenging due to both intra-class and inter-class similarities among various tree species.
Akhtar Jamil, B. Bayram
semanticscholar   +1 more source

Seasonal variations and challenges in estimating populations and identifying species of Korean ungulates using drone‐derived thermal orthomosaic maps

open access: yesWildlife Biology, EarlyView.
Drones equipped with thermal infrared (TIR) cameras offer significant time and labor savings in estimating wild ungulate populations. However, accurately monitoring forest‐dwelling ungulates remains challenging due to their elusive behavior and complex habitat.
Jinhwi Kim, Donggul Woo
wiley   +1 more source

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