Results 41 to 50 of about 10,639 (216)

Rapid tunnel scanning using a 360-degree camera and SfM photogrammetry

open access: yesIOP Conference Series: Earth and Environmental Science, 2023
Abstract Photogrammetric scanning can be employed for the digitization of underground spaces, for example for remote mapping, visualization, or training purposes. However, such a technique requires capturing many photos, which can be laborious and time-consuming. Previous research has demonstrated that the acquisition time can be reduced
Prittinen, Markus   +4 more
openaire   +3 more sources

TRIANGULATION AND TIME-OF-FLIGHT BASED 3D DIGITISATION TECHNIQUES OF CULTURAL HERITAGE STRUCTURES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
This study aims to introduce triangulation and ToF measurement techniques used in three-dimensional modelling of cultural heritages. These measurement techniques are traditional photogrammetry, SfM approach, laser scanning and time-of-flight camera.
C. Altuntas
doaj   +1 more source

Automated classification of three-dimensional reconstructions of coral reefs using convolutional neural networks [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Hopkinson, B. M., King, A. C., Owen, D. P., Johnson-Roberson, M., Long, M. H., & Bhandarkar, S.
Bhandarkar, Suchendra M.   +5 more
core   +1 more source

SfM-photogrammetry for fast recording of archaeological features in remote areas

open access: yesArcheologia e Calcolatori, 2020
Digital documenting of archaeological evidence represents a crucial tool in the study, preservation, management, and promotion of archaeological sites in remote regions and in fragile landscapes. In fact, in marginal environment, the knowledge related to archaeological heritage can quickly disappear, especially when policies to protect cultural ...
Brandolini F.   +5 more
openaire   +7 more sources

Innovative strategies for 3D visualisation using photogrammetry and 3D scanning for mobile phones [PDF]

open access: yes, 2019
3D model generation through Photogrammetry is a modern overlay of digital information representing real world objects in a virtual world. The immediate scope of this study aims at generating 3D models using imagery and overcoming the challenge of ...
Dempster, Euan   +2 more
core   +2 more sources

Quantifying Tufa Growth Rates (TGRs) using Structure-from-Motion (SfM) Photogrammetry

open access: yesProceedings of the 6th International Conference on Geographical Information Systems Theory, Applications and Management, 2020
The production of high-quality digital surface models (DSMs) is an increasing interest throughout the various geomorphometry studies. Consequently, a wide range of advanced geospatial methods has been used at different scales. Despite the fact that Structure-from-Motion (SfM) photogrammetry is one of the most popular methods until now it has not been ...
Marić, Ivan   +3 more
openaire   +2 more sources

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

open access: yesSensors, 2023
Recently, the term smartphone photogrammetry gained popularity. This suggests that photogrammetry may become a simple measurement tool by virtually every smartphone user.
Aleksandra Jasińska   +3 more
doaj   +1 more source

Identification of structural controls in an active lava dome with high resolution DEMs:Volcán de Colima, Mexico [PDF]

open access: yes, 2012
Monitoring the topography of active lava domes is critical for detecting changes that may trigger or influence collapse or explosive activity. Internal dome structure and conditions are more difficult to elucidate, but also play vital roles.
James, Michael, Varley, Nick
core   +1 more source

A CRITERION OF RADIAL DISTORTION ON STRUCTURE FROM MOTION WITH CONSUMER-GRADE CAMERAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Images from consumer-grade cameras typically contain significant radial distortions, resulting in less accurate photogrammetry results generated using Structure from Motion (SfM). It is prone to reconstruct inaccurate scene points, becoming the so-called
T. Xiao, S. Guo, L. Wu, Q. Yan, F. Deng
doaj   +1 more source

Photogrammetric 3D Model via Smartphone GNSS Sensor: Workflow, Error Estimate, and Best Practices

open access: yesRemote Sensing, 2020
Geotagged smartphone photos can be employed to build digital terrain models using structure from motion-multiview stereo (SfM-MVS) photogrammetry. Accelerometer, magnetometer, and gyroscope sensors integrated within consumer-grade smartphones can be used
Stefano Tavani   +8 more
doaj   +1 more source

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