Results 21 to 30 of about 407,227 (263)

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

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

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

Prima che appaia il “divieto di fotorilievo”: considerazioni sulla fotomodellazione

open access: yesDisegnare con, 2013
Oggi è possibile accedere con facilità a strumentazioni sofisticate inerenti sia il rilievo metrico che fotografico, ma in questo ambito spesso si può essere chiamati ad operare con procedure di emergenza, dove l’improvvisazione può diventare essenziale:
Mirco Pucci
doaj   +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

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

Structure from stereo and motion [PDF]

open access: yesJournal of the Optical Society of America A, 1985
Stereopsis and motion parallax are two methods for recovering three-dimensional (3D) shapes. Theoretical analyses of each method show that neither alone can recover rigid 3D shapes correctly unless other information, such as perspective and vertical disparity, is included.
openaire   +2 more sources

Dynamic dot displays reveal material motion network in the human brain

open access: yesNeuroImage, 2021
There is growing research interest in the neural mechanisms underlying the recognition of material categories and properties. This research field, however, is relatively more recent and limited compared to investigations of the neural mechanisms ...
Alexandra C. Schmid   +2 more
doaj   +1 more source

Structure and motion from silhouettes [PDF]

open access: yesProceedings Eighth IEEE International Conference on Computer Vision. ICCV 2001, 2002
This paper addresses the problem of recovering structure and motion from silhouettes. Silhouettes are projections of contour generators which are viewpoint dependent, and hence do not readily provide point correspondences for exploitation in motion estimation.
Wong, KYK, Cipolla, R
openaire   +3 more sources

Structure from Articulated Motion: Accurate and Stable Monocular 3D Reconstruction without Training Data

open access: yesSensors, 2019
Recovery of articulated 3D structure from 2D observations is a challenging computer vision problem with many applications. Current learning-based approaches achieve state-of-the-art accuracy on public benchmarks but are restricted to specific types of ...
Onorina Kovalenko   +4 more
doaj   +1 more source

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