Results 21 to 30 of about 2,115,498 (294)

Born-Digital Logistics: Impacts of 3D Recording on Archaeological Workflow, Training, and Interpretation

open access: yesOpen Archaeology, 2021
Digital technologies have been at the heart of fieldwork at the Kaymakçı Archaeological Project (KAP) since its beginning in 2014. All data on this excavation are born-digital, from textual, photographic, and videographic descriptions of contexts and ...
Scott Catherine B.   +3 more
doaj   +1 more source

Accuracy of Structure-from-Motion/Multiview Stereo Terrain Models: A Practical Assessment for Applications in Field Geology

open access: yesGeosciences, 2023
We assess the accuracy of Structure-from-Motion/Multiview stereo (SM) terrain models acquired ad hoc or without high-resolution ground control to analyze their usage as a base for inexpensive 3D bedrock geologic mapping.
Terry L. Pavlis, Laura F. Serpa
doaj   +1 more source

Analysis of Changes in Forest Structure using Point Clouds from Historical Aerial Photographs

open access: yesRemote Sensing, 2019
Dynamic changes in land use, many of which are related to land abandonment, are taking place in many regions of the world. As a result, forest vegetation appears, which in part is a consequence of planned afforestation programs and in part has the ...
Piotr Bożek   +2 more
doaj   +1 more source

Statistical process control and mapping accuracy standards applied to aerial surveys

open access: yesRevista Ciência Agronômica, 2021
Remotely piloted aircraft (RPA) are established in the market as a powerful tool for acquiring aerial images and facilitating mapping for various purposes.
Vinícius Bitencourt Campos Calou   +4 more
doaj   +1 more source

Omni-directional structure from motion [PDF]

open access: yesProceedings IEEE Workshop on Omnidirectional Vision (Cat. No.PR00704), 2002
In this paper, we describe our work on a robot navigation system using an omnidirectional camera as the primary sensor. An omnidirectional structure from motion algorithm is presented with its uncertainty analyzed. We evaluate the omnidirectional SFM on both synthetic data and on real image sequences. Comparison with the conventional camera is made and
Chang, Peng, Hebert, Martial
openaire   +1 more source

Interpolation in structure from motion [PDF]

open access: yesPerception & Psychophysics, 1992
We investigated surface interpolation in displays of structure from motion (SFM). To do so, we introduced a new method for measuring surface perception in dynamic displays--the SFM probe. An SFM probe is a dot that moves rigidly with the dots on a simulated surface, and whose distance from that surface can be adjusted with a joystick or similar control.
A, Saidpour   +2 more
openaire   +2 more sources

Geostatistics and Structure from Motion Techniques for Coastal Pollution Assessment along the Policoro Coast (Southern Italy)

open access: yesGeosciences, 2020
The coastal system, with its physical chemical and biological components, is the place where the lithosphere, atmosphere and hydrosphere intersect and interact, and in which human activity has a considerable impact on the balance of the whole ecosystem ...
Cosimo Cagnazzo   +3 more
doaj   +1 more source

Characterizing protein motions from structure [PDF]

open access: yesJournal of Molecular Graphics and Modelling, 2011
To clarify the extent structure plays in determining protein dynamics, a comparative study is made using three models that characterize native state dynamics of single domain proteins starting from known structures taken from four distinct SCOP classifications.
Charles C, David, Donald J, Jacobs
openaire   +2 more sources

A survey on rotation optimization in structure from motion [PDF]

open access: yes, 2016
We consider the problem of robust rotation optimization in Structure from Motion applications. A number of different approaches have been recently proposed, with solutions that are at times incompatible, and at times complementary.
Daniilidis, Kostas   +2 more
core   +2 more sources

Track-Before-Detect Framework-Based Vehicle Monocular Vision Sensors

open access: yesSensors, 2019
This paper proposes a Track-before-Detect framework for a multibody motion segmentation (named TbD-SfM). Our contribution relies on a tightly coupled tracking before detection strategy intended to reduce the complexity of existing Multibody Structure ...
Hernan Gonzalez   +2 more
doaj   +1 more source

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