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Opacity light fields
2003
Proceedings of the 2003 symposium on Interactive 3D graphics - SI3D '03
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The opacity hull is a shape enclosing the object with view-dependent opacity parameterized onto that shape. We call the combination of opacity hulls and surface light fields the opacity light field. ...
We present new hardware-accelerated techniques for rendering surface light fields with opacity hulls that allow for interactive visualization of objects that have complex reflectance properties and elaborate ...
We especially thank Michael Doggett, Joe Chien, and Jeff Royle from ATI for providing us with the latest graphics hardware and DirectX 9.0 drivers. ...
doi:10.1145/641480.641496
dblp:conf/si3d/VlasicPMGM03
fatcat:3kgiqwf2dzd4pgrhxpfgjmqruq
Opacity light fields
2003
Proceedings of the 2003 symposium on Interactive 3D graphics - SI3D '03
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The opacity hull is a shape enclosing the object with view-dependent opacity parameterized onto that shape. We call the combination of opacity hulls and surface light fields the opacity light field. ...
We present new hardware-accelerated techniques for rendering surface light fields with opacity hulls that allow for interactive visualization of objects that have complex reflectance properties and elaborate ...
We especially thank Michael Doggett, Joe Chien, and Jeff Royle from ATI for providing us with the latest graphics hardware and DirectX 9.0 drivers. ...
doi:10.1145/641494.641496
fatcat:wtg2ujts2zfcpn3aaya2tieuwe
The extragalactic background light and the gamma-ray opacity of the universe
2013
Astroparticle physics
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The EBL also plays an important role in the propagation of very high energy gamma-rays which are attenuated en route to Earth by pair producing gamma-gamma interactions with the EBL and CMB. ...
The extragalactic background light (EBL) is one of the fundamental observational quantities in cosmology. ...
Arendt for their comments on parts of the manuscript, and an ...
doi:10.1016/j.astropartphys.2012.09.003
fatcat:v4js222ihfc23b3hks47uobx6i
Multiple light field rendering
2003
Proceedings of the 1st international conference on Computer graphics and interactive techniques in Austalasia and South East Asia - GRAPHITE '03
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Light field rendering is the process of rendering novel views of a scene captured by the light field function. ...
We present a rendering method for light fields which allows multiple instances of a light field to be rendered in combination with a polygon rendered scene. ...
For a single light field the rendering preserves the opacity and colour of the light field view. ...
doi:10.1145/604471.604510
dblp:conf/graphite/Linden03
fatcat:t6d26kwihbc47pjpxt5absqitm
Multiple light field rendering
2003
Proceedings of the 1st international conference on Computer graphics and interactive techniques in Austalasia and South East Asia - GRAPHITE '03
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Light field rendering is the process of rendering novel views of a scene captured by the light field function. ...
We present a rendering method for light fields which allows multiple instances of a light field to be rendered in combination with a polygon rendered scene. ...
For a single light field the rendering preserves the opacity and colour of the light field view. ...
doi:10.1145/604509.604510
fatcat:43kpoircuvbjjms3lecxhmktea
Raycasting of Light Field Galleries from Volumetric Data
2008
Computer graphics forum (Print)
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The approach expands an existing sphere-hemisphere parameterization for the light field with per-pixel depth. ...
We show how light field galleries can be created to give unexperienced audiences access to interactive high-quality volume renditions. ...
During light field rendering, the user can interactively modify the opacity values of the different layers. ...
doi:10.1111/j.1467-8659.2008.01215.x
fatcat:bdgdt4n4zjbyneftcnau4mcjdy
Anatomical Volume Visualization with Weighted Distance Fields
[article]
2010
Eurographics Workshop on Visual Computing for Biomedicine
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We obtain real-time interaction with the volume by calculating the WDT on the graphics card. ...
The WDT is presented as a general technique to generate a derived characteristic of a scalar field that can be used in multiple ways during rendering. ...
This work is supported by a grant from the NIDCD, of the National Institutes of Health, 1 R01 DC06458-01A1. ...
doi:10.2312/vcbm/vcbm10/117-124
fatcat:jbdtrnu77jfg3m3o4wzygyeqee
View-dependent exploration of massive volumetric models on large-scale light field displays
2010
The Visual Computer
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The possibilities of the system are demonstrated by the multi-user interactive exploration of 64GVoxels datasets on a 35MPixel light field display driven by a cluster of PCs. ...
raycasting engine with a number of improvements over current GPU volume raycasters. ...
The view-dependent effect is evident when seen on the light field display. ...
doi:10.1007/s00371-010-0453-y
fatcat:3byuukhlhvdufcqki3rlj5wfhu
Pop-up light field
2004
ACM Transactions on Graphics
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Experimental results demonstrate that our system is capable of rendering anti-aliased novel views from a sparse light field. ...
In this article, we present an image-based modeling and rendering system, which we call pop-up light field, that models a sparse light field using a set of coherent layers. ...
In image-based opacity hulls [Matusik et al. 2002] , multi-background matting is used to acquire alpha mattes to construct a visual hull with view dependent opacity. ...
doi:10.1145/990002.990005
fatcat:vk3n4556frculcfvv63yxwrbem
Strategies for direct volume rendering of diffusion tensor fields
2000
IEEE Transactions on Visualization and Computer Graphics
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In order to use volume rendering, however, we must develop methods for assigning opacity and color to the data, and create a method to shade the data to improve the legibility of the rendering. ...
Finally, because interpolation between data points is a fundamental issue in volume rendering, we conclude with a discussion and evaluation of three distinct interpolation methods suitable for diffusion ...
Alexander, assistant research professor in the Department of Radiology, University of Utah School of Medicine, for involving them in his research on diffusion tensor imaging, providing them with high-resolution ...
doi:10.1109/2945.856994
fatcat:2g34dmwbkje2baonqxxwjpjgty
Plenoxels: Radiance Fields without Neural Networks
[article]
2021
arXiv
pre-print
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On standard, benchmark tasks, Plenoxels are optimized two orders of magnitude faster than Neural Radiance Fields with no loss in visual quality. ...
We introduce Plenoxels (plenoptic voxels), a system for photorealistic view synthesis. Plenoxels represent a scene as a sparse 3D grid with spherical harmonics. ...
Additionally, we would like to thank Ren Ng for helpful suggestions and Hang Gao for reviewing a draft of the paper. ...
arXiv:2112.05131v1
fatcat:p6mhlt3r3va4ndtm4t7j3hjlb4
Neural Reflectance Fields for Appearance Acquisition
[article]
2020
arXiv
pre-print
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We demonstrate that neural reflectance fields can be estimated from images captured with a simple collocated camera-light setup, and accurately model the appearance of real-world scenes with complex geometry ...
We also demonstrate that we can compose the estimated neural reflectance field of a real scene with traditional scene models and render them using standard Monte Carlo rendering engines. ...
view-dependent effects. ...
arXiv:2008.03824v2
fatcat:2itqpeyihndrfbealimbpptcqm
Visualization of Brain Microstructure Through Spherical Harmonics Illumination of High Fidelity Spatio-Angular Fields
2014
IEEE Transactions on Visualization and Computer Graphics
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Figure 1 (d) shows the results of volume rendering where opacity and color are determined by spherical harmonic illumination of the diffusion kurtosis tensors for each voxel. ...
Using spherical harmonics lighting functions described in this paper, we visualize spatio-angular fields. In this figure, we use the dataset of a patient suffering from traumatic brain injury. ...
Any opinions, findings, conclusions, or recommendations expressed in this article are those of the authors and do not necessarily reflect the views of the research sponsors. ...
doi:10.1109/tvcg.2014.2346411
pmid:26356965
fatcat:3njj3qnfgbd2tbhkiqfqzqro7a
Baking Neural Radiance Fields for Real-Time View Synthesis
[article]
2021
arXiv
pre-print
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Neural volumetric representations such as Neural Radiance Fields (NeRF) have emerged as a compelling technique for learning to represent 3D scenes from images with the goal of rendering photorealistic ...
The resulting scene representation retains NeRF's ability to render fine geometric details and view-dependent appearance, is compact (averaging less than 90 MB per scene), and can be rendered in real-time ...
Acknowledgements We thank Keunhong Park and Michael Broxton for their generous help with debugging, and Ryan Overbeck for last-minute JavaScript help. ...
arXiv:2103.14645v1
fatcat:dgg6oklgkrerhgiit2oqpf6gci
Coverage-based opacity estimation for interactive Depth of Field in molecular visualization
2015
2015 IEEE Pacific Visualization Symposium (PacificVis)
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Figure 1 : Thermus thermophilus 70S ribosome (PDB ID: 2WDK) rendered with no Depth of Field effect (left) and using our approach focusing on near structures (center) and far away structures (right). ...
ABSTRACT In this paper, we introduce coverage-based opacity estimation to achieve Depth of Field (DoF) effects when visualizing molecular dynamics (MD) data. ...
Figure 13 compares the result of our interactive approach with the outcome of using a physically-based ray tracing in the Mitsuba renderer. ...
doi:10.1109/pacificvis.2015.7156385
dblp:conf/apvis/KottravelFSR15
fatcat:xiyp2kkqxzhejjbzn2t65avpaq
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