Results 11 to 20 of about 520 (95)
Rapid imaging in the field followed by photogrammetry digitally captures the otherwise lost dimensions of plant specimens. [PDF]
Appl Plant Sci, 2023 Abstract Premise We recognized the need for a customized imaging protocol for plant specimens at the time of collection for the purpose of three‐dimensional (3D) modeling, as well as the lack of a broadly applicable photogrammetry protocol that encompasses the heterogeneity of plant specimen geometries and the challenges introduced by processes such as
James N, Adkinson A, Mast A.
europepmc +2 more sources
SfM-3DULC: Reliability of a new 3D wound measurement procedure and its accuracy in projected area. [PDF]
Int Wound J, 2022 Abstract Three‐dimensional (3D) wound measurement lacks a gold standard to test accuracy. It is useful to develop procedures to scan wounds and reconstruct their 3D model with low‐cost techniques. We present a new procedure (Structure from Motion [SfM]‐3DULC) that uses photographs for measuring nine wound variables.
Sánchez-Jiménez D +3 more
europepmc +2 more sources
Habitat dynamics of flagship species for conservation prioritization in southern Europe. [PDF]
Conserv BiolAbstract Biodiversity loss is accelerating due to human actions, and decision‐making for conservation needs to be streamlined. Ex situ biodiversity modeling and monitoring based on satellite time‐series data could be an affordable and cost‐efficient tool for improving the prioritization of conservation areas.
Velasco-Rodríguez A +4 more
europepmc +2 more sources
Optimization of a biometric system based on acoustic images. [PDF]
ScientificWorldJournal, 2014 On the basis of an acoustic biometric system that captures 16 acoustic images of a person for 4 frequencies and 4 positions, a study was carried out to improve the performance of the system. On a first stage, an analysis to determine which images provide more information to the system was carried out showing that a set of 12 images allows the system to
Izquierdo Fuente A +3 more
europepmc +2 more sources
Tectonics, Volume 42, Issue 7, July 2023., 2023 Abstract The coexistence of shortening and extensional tectonic regimes is a common feature in orogenic belts. The westernmost end of the Western Mediterranean is an area undergoing shortening related to the 5 mm/yr NNW‒SSE convergence of the Nubia and Eurasia Plates. In this region, the Central Betic Cordillera shows a regional ENE‒WSW extension. Here,
I. Martin‐Rojas +14 more
wiley +1 more source
Tectonics, Volume 41, Issue 9, September 2022., 2022 Abstract Fault barriers are key structures for studying seismic hazard in regions of intense brittle deformation. The interaction between fault sets affects their seismogenic behavior, if some of them act as barriers. The Granada Basin, in the Betic Cordillera, is a region affected by shallow brittle deformation, as it was the scenario for the recent ...
Asier Madarieta‐Txurruka +7 more
wiley +1 more source
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
The Photogrammetric Record, Volume 37, Issue 179, Page 285-305, September 2022., 2022 This paper aims to study and quantify the induced error due to the deflection of verticals (DOV) when integrating different sensors, focusing on GNSS and INS for 3D mapping in airborne mapping. It is shown that the DOV effect should be considered for direct georeferencing because the DOV components are in the order of (or larger than) INS uncertainty ...
Mohammad Bagherbandi +3 more
wiley +1 more source
Geoscience Data Journal, Volume 9, Issue 1, Page 37-45, June 2022., 2022 Entity‐relationship diagram (ERD) of the confusion matrix dataset. Abstract The confusion matrix has long been adopted as the ‘de facto’ and ‘de jure’ standard method of reporting on the thematic accuracy assessment of any land surface geospatial dataset.
Francisco J. Ariza‐López +3 more
wiley +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