Results 71 to 80 of about 1,590 (229)

Accuracy Analysis of a Dam Model from Drone Surveys

Sensors, 2017
This paper investigates the accuracy of models obtained by drone surveys. To this end, this work analyzes how the placement of ground control points (GCPs) used to georeference the dense point cloud of a dam affects the resulting three-dimensional (3D ...
Elena Ridolfi, Giulia Buffi, Sara Venturi, Piergiorgio Manciola   +3 more
doaj   +1 more source

Digitalisasi Pemetaan Topografi menggunakan Alat Drone serta Perhitungan Ketelitian dengan Ground Control Point (Gcp)

Jurnal Teknik Sipil Terapan
Perkembangan teknologi telah mendorong penggunaan drone untuk pemetaan topografi yang hemat biaya dan waktu. Pada penelitian yang dilakukan di area pengembangan perumahan Citraland Winangun, dilakukan penentuan kondisi topografi dan keakuratan proses pemetaan menggunakan drone dengan Ground Control Point (GCP).
Anastasya G.O Piyoh, I Gede Yohan Kafrain, Fenny Moniaga   +2 more
openaire   +1 more source

PENGARUH SEBARAN DATA GROUND CONTROL POINT (GCP) DALAM PENGOLAHAN DATA FOTO UDARA PADA AREA IN-PIT MAPPING MENGGUNAKAN DRONE QUADCOPTER DJI PHANTOM 4 RTK BERBASIS BASE GPS METODE REAL TIME KINEMATIC (RTK)

Prosiding Temu Profesi Tahunan PERHAPI, 2020
ABSTRAKTeknik pengambilan foto udara yang saat ini sedang berkembang, tidak bisa dipungkiri lagi bahwa teknologi Unmanned Aerial Vehicle (UAV), khususnya drone merupakan salah satu teknologi yang sangat efektif dan efisien dalam melakukan kegiatan mapping (pemetaan).
Ryan Nugraha, Sigit Putrasakti
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

Remote 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, Giovanna Jona Lasinio, Daniele Poggio, Gianluca Mastrantonio, Alessio Pollice, Arnold Rakaj, Midhun Mohan, Stefano Moro, Edoardo Casoli, Daniele Ventura   +9 more
wiley   +1 more source

Influence of flight altitude and control points in the georeferencing of images obtained by unmanned aerial vehicle

European Journal of Remote Sensing, 2021
This study aimed to explore the influence of flight altitude, density, and distribution of ground control points (GCPs) on the digital terrain model (DTM) in surveys conducted by unmanned aerial vehicles (UAVs).
Lucas Santos Santana, Gabriel Araújo E Silva Ferraz, Diego Bedin Marin, Brenon Dienevam Souza Barbosa, Luana Mendes Dos Santos, Patrícia Ferreira Ponciano Ferraz, Leonardo Conti, Stefano Camiciottoli, Giuseppe Rossi   +8 more
doaj   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source

Evaluating the Effectiveness of ICESat-2 ATL03 Data for Georeferencing Satellite Images [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
ICESat-2 laser points, as a kind of public geographic data, have high ranging accuracy and have great potential in improving the geometric positioning accuracies of satellite images.
H. Li, W. Qin, D. Zhou, Q. Jing, X. Zhang, P. Tao, P. Tao   +6 more
doaj   +1 more source

An Islamic Perspective on the Sustainable Development Goals: Exploring Key Challenges From the Ravi Riverfront Urban Development Project

Sustainable Development, EarlyView.
ABSTRACT Projects are typically viewed as mechanisms for delivering products and services; however, this study examines projects from the distinct perspective of grand challenges (GCs). The selected case is the Ravi Riverfront Urban Development Project in Lahore, Pakistan—a grand challenge project (GCP).
Rehab Iftikhar, Syed Nayyer Abbas Kazmi
wiley   +1 more source

GenCP –Development of AI-generated Ground Control Point (GCP) for EO Satellites Cal/Val

GenCP –Development of AI-generated Ground Control Point (GCP) for EO Satellites Cal/Val Elodie Guasch, Ilyas Yalcin, Sultan Kocaman, Sébastien Saunier, Leonardo de Laurentiis   The Ground Control Points (GCP) are involved in geometric Calibration / Validation activities of remote sensing images and used as reference measurements.
Saunier, Sebastien, Guasch, Elodie, Kocaman, Sultan, YALÇIN, Ilyas   +3 more
openaire   +1 more source

Sargassum Lung Syndrome: Air Flow Obstruction and Bronchial Inflammation Are Observed After Prolonged Exposure to Sargassum Gas Emissions in the Eastern Caribbean

Environmental Toxicology, EarlyView.
ABSTRACT Sargassum inundation of Caribbean and American shorelines is a growing environmental hazard. Hydrogen sulfide (H2S) and ammonia (NH3) produced by decomposing Sargassum could be involved in airway obstruction and bronchial inflammation. The study was undertaken to evaluate the effects of exposure to H2S and NH3 gases emitted during Sargassum ...
Rishika Banydeen, Jonathan Florentin, Maxime Boutourlinsky, Remi Nguyen, Fatima Radouani, Moustapha Agossou, Gary Lutin, Thierry Lebrun, Remi Neviere, Dabor Resiere   +9 more
wiley   +1 more source