Results 21 to 30 of about 10,809,638 (350)

Photogrammetry for 3D Reconstruction of Objects: Effects of Geometry, Texture and Photographing

open access: yesImage Analysis and Stereology, 2023
Today, the use of 3D scanning methods is increasing in a wide range of industries from biomedical to game production. The photogrammetry method is in demand by 3D scanning users due to its portability, photorealistic textured modeling, and low cost ...
Hasan Kemal Surmen
doaj   +1 more source

Multiscale Modeling Framework of Ventricular-Arterial Bi-directional Interactions in the Cardiopulmonary Circulation

open access: yesFrontiers in Physiology, 2020
Ventricular-arterial coupling plays a key role in the physiologic function of the cardiovascular system. We have previously described a hybrid lumped-finite element (FE) modeling framework of the systemic circulation that couples idealized FE models of ...
Sheikh Mohammad Shavik   +6 more
doaj   +1 more source

Gaussian mixture model based probabilistic modeling of images for medical image segmentation [PDF]

open access: yes, 2020
In this paper, we propose a novel image segmentation algorithm that is based on the probability distributions of the object and background. It uses the variational level sets formulation with a novel region based term in addition to the edge-based term ...
Ajmal, Muhammad   +8 more
core   +3 more sources

Image-based façade modeling [PDF]

open access: yesACM Transactions on Graphics, 2008
We propose in this paper a semi-automatic image-based approach to façade modeling that uses images captured along streets and relies on structure from motion to recover camera positions and point clouds automatically as the initial stage for modeling. We start by considering a building façade as a flat rectangular plane or a developable surface with an
Xiao, J.   +5 more
openaire   +2 more sources

Statistical evaluation of fracture of inclusions in cast aluminum alloy by massively-parallel voxel finite element analysis and geometrical measurements

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Fatigue crack in cast aluminum alloys subject to low-cycle fatigue is initiated mainly by the fracture of Si particles. To investigate the mechanism of Si particle fracture, we carried out the geometrical measurements and finite element analysis for a ...
Masaki TERANISHI   +3 more
doaj   +1 more source

A Photogrammetric and Computer Vision-Based Approach for Automated 3D Architectural Modeling and Its Typological Analysis

open access: yesRemote Sensing, 2014
Thanks to the advances in integrating photogrammetry and computer vision, as well as in some numeric algorithms and methods, it is possible to aspire to turn 2D (images) into 3D (point clouds) in an automatic, flexible and good-quality way.
Jesús García-Gago   +3 more
doaj   +1 more source

Large Margin Image Set Representation and Classification [PDF]

open access: yes, 2014
In this paper, we propose a novel image set representation and classification method by maximizing the margin of image sets. The margin of an image set is defined as the difference of the distance to its nearest image set from different classes and the ...
Alzahrani, Majed   +2 more
core   +2 more sources

Understanding Vasomotion of Lung Microcirculation by In Vivo Imaging

open access: yesJournal of Imaging, 2019
The balance of lung extravascular water depends upon the control of blood flow in the alveolar distribution vessels that feed downstream two districts placed in parallel, the corner vessels and the alveolar septal network. The occurrence of an edemagenic
Enrico Mazzuca   +2 more
doaj   +1 more source

Hardware architecture for lossless image compression based on context-based modeling and arithmetic coding [PDF]

open access: yes, 2007
In this paper we present a novel hardware architecture for context-based statistical lossless image compression, as part of a dynamically reconfigurable architecture for universal lossless compression.
Canagarajah, CN   +3 more
core   +2 more sources

Image-based street-side city modeling [PDF]

open access: yesACM Transactions on Graphics, 2009
We propose an automatic approach to generate street-side 3D photo-realistic models from images captured along the streets at ground level. We first develop a multi-view semantic segmentation method that recognizes and segments each image at pixel level into semantically meaningful areas, each labeled with a specific object class, such as building, sky,
Xiao, Jianxiong   +4 more
openaire   +3 more sources

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