Results 1 to 10 of about 366,497 (275)

Measurement and Geometric Modelling of Human Spine Posture for Medical Rehabilitation Purposes Using a Wearable Monitoring System Based on Inertial Sensors [PDF]

open access: yesSensors, 2016
This paper presents a mathematical model that can be used to virtually reconstruct the posture of the human spine. By using orientation angles from a wearable monitoring system based on inertial sensors, the model calculates and represents the curvature ...
Gheorghe-Daniel Voinea   +2 more
doaj   +2 more sources

Hypergraph modelling for geometric model fitting [PDF]

open access: yesPattern Recognition, 2016
In this paper, we propose a novel hypergraph based method (called HF) to fit and segment multi-structural data. The proposed HF formulates the geometric model fitting problem as a hypergraph partition problem based on a novel hypergraph model. In the hypergraph model, vertices represent data points and hyperedges denote model hypotheses. The hypergraph,
Xiao, G., Wang, H., Lai, T., Suter, D.
openaire   +4 more sources

Image compression for quality 3D reconstruction

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
A 3D mesh can be reconstructed from multiple viewpoint images or from a single structured light image. Lossy compression of such images by standard techniques such as JPEG at high compression ratios lead to 3D reconstruction being adversely affected by ...
Omar M. Salih   +3 more
doaj   +1 more source

Lane Detection in Autonomous Vehicles: A Systematic Review

open access: yesIEEE Access, 2023
One of the essential systems in autonomous vehicles for ensuring a secure circumstance for drivers and passengers is the Advanced Driver Assistance System (ADAS).
Noor Jannah Zakaria   +5 more
doaj   +1 more source

Geometric method for assessing the shadowing of objects in solar power engineering [PDF]

open access: yesINCAS Bulletin, 2020
This paper describes a geometric model for assessing the effective area of solar panels with regard to their shadowing when the object is illuminated by the solar flow from a given direction.
Leonid V. MARKIN
doaj   +1 more source

DETECTION OF PLANAR POINTS FOR BUILDING EXTRACTION FROM LIDAR DATA BASED ON DIFFERENTIAL MORPHOLOGICAL AND ATTRIBUTE PROFILES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
This paper considers a new method for building-extraction from LiDAR data. This method uses multi-scale levelling schema or MSLS-segmentation based on differential morphological profiles for removing non-building points from LiDAR data during the data ...
D. Mongus   +3 more
doaj   +1 more source

An Approach to the Study of a 19th-Century Sugarcane Mill and Steam Engine through CAD Techniques and Mechanical Engineering

open access: yesMachines, 2021
This article shows an approach to the three-dimensional modelling of a sugarcane mill and its associated steam engine, designed by the Robey and Co. engineering company in 1869. In order to obtain the 3D CAD model of said invention, CATIA V5 R20 software
José Ignacio Rojas-Sola   +3 more
doaj   +1 more source

Equivalent Parallel Strands Modeling of Highly-Porous Media for Two-Dimensional Heat Transfer: Application to Metal Foam

open access: yesEnergies, 2021
A new geometric modeling of isotropic highly-porous cellular media, e.g., open-cell metal, ceramic, and graphite foams, is developed. The modelling is valid strictly for macroscopically two-dimensional heat transfer due to the fluid flow in highly-porous
Nihad Dukhan
doaj   +1 more source

A Voxel-Based Watermarking Scheme for Additive Manufacturing

open access: yesApplied Sciences, 2021
Digital and analog contents, generated in additive manufacturing (AM) processes, may be illegally modified, distributed, and reproduced. In this article, we propose a watermarking scheme to enhance the security of AM.
Shyh-Kuang Ueng   +2 more
doaj   +1 more source

Blaise Pascal’s Mechanical Calculator: Geometric Modelling and Virtual Reconstruction

open access: yesMachines, 2021
This article shows the three-dimensional (3D) modelling and virtual reconstruction of the first mechanical calculating machine used for accounting purposes designed by Blaise Pascal in 1642.
José Ignacio Rojas-Sola   +3 more
doaj   +1 more source

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