Results 51 to 60 of about 55,131,924 (95)

A low-cost digital 3D insect scanner

Information Processing in Agriculture
Collections of biological specimens are essential in entomology laboratories for scientific knowledge and the characterization of natural varieties. It is vital to liberate useful information from physical collections by digitizing specimens, allowing ...
Thanh-Nghi Doan, Chuong V. Nguyen
doaj   +1 more source

Structure-from-Motion based vegetation modeling and shade estimation

, 2015
Although three-dimensional (3-D) light dimension and range (LiDAR) point cloud datasets describing the structure of vegetation have proven to be highly useful for ecological modeling, the collection of such data is expensive.
James Nathaniel Balcomb (22014101)
core   +1 more source

Structure from Motion and Archaeological Excavation: Experiences of the Via Consolare Project in Pompeii

Studies in Digital Heritage, 2021
The last decade of advances in Image-Based Modeling (IBM) data acquisition based on Structure from Motion (SfM) have made it possible as never before to record excavated archaeological deposits, historical architectural remains, artifacts, and ...
Michael Andrew Anderson
doaj  

The colour of stones and mosaics in Ravenna: new images of ancient monuments using the latest generation of unconventional photogrammetry

EGA, 2015
This paper focuses on texture accuracy for a reliable simulation of construction materials present in some important historic monuments on the World Heritage List, dating back to Late Antiquity in Ravenna (Italy).
Luca Cipriani, Filippo Fantini, Silvia Bertacchi   +2 more
doaj   +1 more source

Facial Feature Reconstruction using Structure from Motion [PDF]

, 2005
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.Structure from Motion suggests that an object or scene’s three-dimensional structure can be determined from its observed two-dimensional motion.
Rautenbach, Pieter Albertus
core  

Influence of Topographic Resolution and Accuracy on Hydraulic Channel Flow Simulations: Case Study of the Versilia River (Italy)

Remote Sensing, 2019
The Versilia plain, a well-known and populated tourist area in northwestern Tuscany, is historically subject to floods. The last hydrogeological disaster of 1996 resulted in 13 deaths and in loss worth hundreds of millions of euros. A valid management of
Marco Luppichini, Massimiliano Favalli, Ilaria Isola, Luca Nannipieri, Roberto Giannecchini, Monica Bini   +5 more
doaj   +1 more source

Contrast-Independent Biologically Inspired Motion Detection [PDF]

, 2011
Babies B, Lindemann JP, Egelhaaf M, Möller R. Contrast-Independent Biologically Inspired Motion Detection. Sensors. 2011;11(12):3303-3326.Optic flow, i.e., retinal image movement resulting from ego-motion, is a crucial source of information used for ...
Lindemann, Jens Peter ; https://orcid.org/, Egelhaaf, Martin ; https://orcid.org/, Martin Egelhaaf, Jens Peter Lindemann, Ralf Möller, Birthe Babies, Möller, Ralf ; https://orcid.org/, Babies, Birthe   +7 more
core   +1 more source

Evaluating the Performance of Structure from Motion Pipelines

Journal of Imaging, 2018
Structure from Motion (SfM) is a pipeline that allows three-dimensional reconstruction starting from a collection of images. A typical SfM pipeline comprises different processing steps each of which tackles a different problem in the reconstruction ...
Simone Bianco, Gianluigi Ciocca, Davide Marelli   +2 more
doaj   +1 more source

Reconstruction of Late Pleistocene-Holocene Deformation through Massive Data Collection at Krafla Rift (NE Iceland) Owing to Drone-Based Structure-from-Motion Photogrammetry

Applied Sciences, 2020
In the present work, we demonstrate how drone surveys coupled with structure-from-motion (SfM) photogrammetry can help to collect huge amounts of very detailed data even in rough terrains where logistics can affect classical field surveys.
Fabio Luca Bonali, Alessandro Tibaldi, Noemi Corti, Luca Fallati, Elena Russo   +4 more
doaj   +1 more source

Biomass estimation of abandoned orange trees using UAV-SFM 3D points

International Journal of Applied Earth Observations and Geoinformation
In smallholder areas, the abandonment of orchards is a recent phenomenon with socioeconomic and environmental consequences. Biomass estimation and monitoring of these areas is essential to analyze their influence on the CO2 balance and to quantify carbon
J. Estornell, J. Martí, E. Hadas, I. López-Cortés, B. Velázquez-Martí, A. Fernández-Sarría   +5 more
doaj   +1 more source