Results 31 to 40 of about 7,038 (135)
Algorithms, 2023 This study describes a new algorithm developed to detect local cells of minimum or maximum heights in grid Digital Elevation Models (DEMs). DEMs have a low variance in digital levels due to the spatial continuity of the data. Traditional algorithms, such
Manuel Antonio Ureña-Cámara +1 more
doaj +1 more source
Relative Radiometric Normalisation of Unmanned Aerial Vehicle Photogrammetry‐based RGB Orthomosaics
The Photogrammetric Record, Volume 37, Issue 178, Page 228-247, June 2022., 2022 This article deals with the problem of varied brightness of UAV images caused by the changing weather conditions. Relative radiometric normalization (RRN) of acquired RGB imagery is used to improve the visual quality of the resultant orthomosaic. The algorithm utilizes image positions and their relationships to group them, choose references, and ...
Elżbieta Pastucha +5 more
wiley +1 more source
Tectonics, Volume 40, Issue 7, July 2021., 2021 Abstract Understanding active tectonics and seismicity in extensional settings requires the analysis of high‐angle normal faults (HANFs) and the transfer of deformation at depth. The debate surrounds the role of low‐angle normal faults (LANFs) in triggering high magnitude earthquakes.
Asier Madarieta‐Txurruka +8 more
wiley +1 more source
Fast acquisition for modelling heritage-related complex scenes based on TLS and spherical photogrammetry [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe 3D documentation of complex scenes—characterized by restricted spaces, irregular geometries, and poor lighting—remains a significant challenge in cultural heritage.
A. T. Mozas-Calvache +3 more
doaj +1 more source
3D MODELS OF THE QH31, QH32 AND QH33 TOMBS IN QUBBET EL HAWA (ASWAN, EGYPT) [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 This paper describes the methodology employed to obtain 3D models of three funerary complexes (QH31, QH32 and QH33) of the Necropolis of Qubbet el Hawa (Aswan, Egypt) and the main results obtained.
A. T. Mozas-Calvache +4 more
doaj +1 more source
As maravilhas da fotogrametria
Boletim Geográfico do Rio Grande do Sul, 2014 Versa sobre a fotogrametria na guerra; a fotogrametria como instrumento de paz; a fotogrametria na administração pública; a otogrametria aérea na agricultura e no planejamento.
Hans Augusto Thofehrn
doaj +4 more sources
Proposal of Radiometric Correction for the In-Situ Modelling of Polychrome Religious Carvings [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesDigitalizing cultural heritage demands accurate 3D models for documentation, conservation, and restoration, focusing on both geometry and texture. For medium-sized objects, 3D scanning commonly provides accurate geometry, while photogrammetry excels at ...
D. Vico-García +3 more
doaj +1 more source
Evolution of the 3D Documentation of the Necropolis of Qubbet el-Hawa (Aswan, Egypt) Based on Data Fusion [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThis study describes the evolution of workflows implemented over six campaigns for the complete graphical documentation of an Egyptian necropolis. The primary objective was to enhance data acquisition efficiency while ensuring a high geometric and ...
A. T. Mozas-Calvache +3 more
doaj +1 more source
PROGRESSIVE DENSIFICATION AND REGION GROWING METHODS FOR LIDAR DATA CLASSIFICATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 At present, airborne laser scanner systems are one of the most frequent methods used to obtain digital terrain elevation models. While having the advantage of direct measurement on the object, the point cloud obtained has the need for classification of ...
J. L. Pérez-García +4 more
doaj +1 more source
A practical workflow for road slopes monitoring using handled mobile mapping systems [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesHigh-resolution monitoring of road infrastructure is essential for the early detection of geomorphological instabilities such as landslides and erosion. This study evaluates the performance of handled MMS under different vehicle-mounted configurations: a
J. M. Gómez-López +4 more
doaj +1 more source