Results 21 to 30 of about 248,414 (310)

Line Geometry and Camera Autocalibration [PDF]

open access: yesJournal of Mathematical Imaging and Vision, 2008
We provide a completely new rigorous matrix formulation of the absolute quadratic complex (AQC), given by the set of lines intersecting the absolute conic. The new results include closed-form expressions for the camera intrinsic parameters in terms of the AQC, an algorithm to obtain the dual absolute quadric from the AQC using straightforward matrix ...
Ronda Prieto, José Ignacio   +2 more
openaire   +3 more sources

Kinematic Differential Geometry of a Line Trajectory in Spatial Movement

open access: yesAxioms, 2023
This paper investigates the kinematic differential geometry of a line trajectory in spatial movement. Specifically, we provide a theoretical expression of inflection line congruence, which is the spatial equivalent of the inflection circle of planar ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Kinematic Geometry of a Timelike Line Trajectory in Hyperbolic Locomotions

open access: yesAxioms, 2023
This study utilizes the axodes invariants to derive novel hyperbolic proofs of the Euler–Savary and Disteli formulae. The inflection circle, which is widely recognized, is situated on the hyperbolic dual unit sphere, in accordance with the principles of ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

A Straight Line through the Wilderness: Geometry and Geography in William Byrd’s Histories of the Dividing line Betwixt Virginia and North Carolina (1728 sqq)

open access: yesMiranda: Revue Pluridisciplinaire du Monde Anglophone, 2012
In the text now known as the Histories of the Dividing line, William Byrd II narrates the survey, in 1728, of the straight line marking the Virginia-North Carolina border.
Julien Nègre
doaj   +1 more source

EXPERIMENTS WITH UAS IMAGERY FOR AUTOMATIC MODELING OF POWER LINE 3D GEOMETRY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The ideal mapping technology for transmission line inspection is the airborne LiDAR executed from helicopter platforms. It allows for full 3D geometry extraction in highly automated manner.
G. Jóźków, B. Vander Jagt, C. Toth
doaj   +1 more source

Nut Geometry Inspection Using Improved Hough Line and Circle Methods

open access: yesSensors, 2023
Nuts are the cornerstone of human industrial construction, especially A-grade nuts that can only be used in power plants, precision instruments, aircraft, and rockets.
En-Yu Lin   +2 more
doaj   +1 more source

Significance of the suture line in cephalopod taxonomy revealed by 3D morphometrics in the modern nautilids Nautilus and Allonautilus

open access: yesScientific Reports, 2021
Assessing the taxonomic importance of the suture line in shelled cephalopods is a key to better understanding the diversity of this group in Earth history.
Amane Tajika   +2 more
doaj   +1 more source

EXPLORATION OF BATIK JAMBI ON LEARNING TRANSFORMATION GEOMETRY

open access: yesPrima: Jurnal Pendidikan Matematika, 2023
Geometry Ability is one of the mathematical abilities that must be mastered by students, this is because geometry ability is one part of learning mathematics.
retno andriyani   +4 more
doaj   +1 more source

STRICT GEOMETRIC CALIBRATION OF AN UNDERWATER LASER TRIANGULATION SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
This paper will describe a novel approach for the calibration of an underwater laser triangulation system. Underwater triangulation systems, consisting of a line laser and a camera can be used to determine the geometry of submerged objects or the ...
H. Sardemann, C. Mulsow, H.-G. Maas
doaj   +1 more source

Impact of Fjord Geometry on Grounding Line Stability

open access: yesFrontiers in Earth Science, 2018
Recent and past retreat of marine-terminating glaciers are broadly consistent with observed ocean warming, yet responses vary significantly within regions experiencing similar ocean conditions. We assess how fjord geometry modulates glacier response to a
Henning Åkesson   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy