Results 21 to 30 of about 597,467 (210)

Segmentation Assisted Object Distinction for Direct Volume Rendering [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2020
Ray Casting is a direct volume rendering technique for visualizing 3D arrays of sampled data. It has vital applications in medical and biological imaging. Nevertheless, it is inherently open to cluttered classification results.
A. Azimzadeh Irani, R. Pourgholi
doaj   +1 more source

Role of CT Imaging with Volume Reconstruction in Hemi Facial Hypertrophy: A Pediatric Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Hemifacial hypertrophy is a rare congenital disorder more common in males. It involves the soft tissue, hard bones and teeth of the face. Its etiology is unknown and multiple theories have been postulated.
Gurubharath I.   +2 more
doaj   +1 more source

Volumetric Rendering on Wavelet-Based Adaptive Grid

open access: yesFluids, 2022
Numerical modeling of physical phenomena frequently involves processes across a wide range of spatial and temporal scales. In the last two decades, the advancements in wavelet-based numerical methodologies to solve partial differential equations ...
Alexei V. Vezolainen   +3 more
doaj   +1 more source

Visualization of WiFi Signals Using Programmable Transfer Functions

open access: yesInformation, 2022
In this paper, we show how volume rendering with a Programmable Transfer Function can be used for the effective and comprehensible visualization of WiFi signals.
Alexander Rowden   +3 more
doaj   +1 more source

Efficient ray casting of volumetric images using distance maps for empty space skipping

open access: yesComputational Visual Media, 2020
Volume and isosurface rendering are methods of projecting volumetric images to two dimensions for visualisation. These methods are common in medical imaging and scientific visualisation.
Lachlan J. Deakin, Mark A. Knackstedt
doaj   +1 more source

Topology-Controlled Volume Rendering [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2007
Topology provides a foundation for the development of mathematically sound tools for processing and exploration of scalar fields. Existing topology-based methods can be used to identify interesting features in volumetric data sets, to find seed sets for accelerated isosurface extraction, or to treat individual connected components as distinct entities ...
Weber, Gunther H   +4 more
openaire   +5 more sources

The physics of volume rendering [PDF]

open access: yesEuropean Journal of Physics, 2014
Radiation transfer is an important topic in several physical disciplines, probably most prominently in astrophysics. Computer scientists use radiation transfer, among other things, for the visualisation of complex data sets with direct volume rendering.
openaire   +4 more sources

Real-time Volume Rendering Interaction in Virtual Reality

open access: yesInternational Journal of Technology, 2019
Volume visualization using Direct Volume Rendering (DVR) techniques is used to view information inside 3D volumetric data. Data is classified using a transfer function to emphasize or filter some parts of volumetric information, such as that from ...
Kosin Kalarat, Phanit Koomhin
doaj   +1 more source

Frequency Analysis of Gradient Estimators in Volume Rendering [PDF]

open access: yes, 1995
Gradient information is used in volume rendering to classify and color samples along a ray. In this paper, we present an analysis of the theoretically ideal gradient estimator and compare it to some commonly used gradient estimators.
Bentum, Mark J.   +2 more
core   +4 more sources

High Performance GPU-Based Fourier Volume Rendering

open access: yesInternational Journal of Biomedical Imaging, 2015
Fourier volume rendering (FVR) is a significant visualization technique that has been used widely in digital radiography. As a result of its O(N2log⁡N) time complexity, it provides a faster alternative to spatial domain volume rendering algorithms that ...
Marwan Abdellah   +2 more
doaj   +1 more source

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