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Image shading taking into account relativistic effects
1996
ACM Transactions on Graphics
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Detailed examples are also given to show the result of shading with the relativistic effects taken into account. ...
Creating images of 3D scenes in relativistic motion might have important applications to science-fiction films, computer games, and virtual environments. ...
Image Shading Taking into Account Relativistic Effects • and (48) to include light sources moving relative to the objects. ...
doi:10.1145/234535.234537
fatcat:ytxb75fxyrg3bll6b6psn26eli
Searchlight and Doppler effects in the visualization of special relativity: a corrected derivation of the transformation of radiance
1999
ACM Transactions on Graphics
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Some examples are given to show the results of image synthesis with relativistic e ects taken into account. ...
We demonstrate that a photo-realistic image of a rapidly moving object is dominated by the searchlight and Doppler e ects. ...
Chang et al. 1996] , however, present a complete description of image shading which t a k es into account relativistic e ects. ...
doi:10.1145/336414.336459
fatcat:otmyg7tq6jg3di2nosqsfq6wku
Relativistic Effects for Time-Resolved Light Transport
2015
Computer graphics forum (Print)
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We explore the effects of time dilation, light aberration, frequency shift and radiance accumulation by modifying existing models of these relativistic effects to take into account the time-resolved nature ...
We further introduce, for the first time, a pinhole camera model into our relativistic rendering framework, and account for subsequent changes in focal length and field of view as the camera moves through ...
Figure 7 : 7 Comparison of taking into account the effect of relativistic acceleration on the camera (right), against the effects of using constant speed (left). ...
doi:10.1111/cgf.12604
fatcat:py6lw3t5yfha3ed5qplstwx7zm
Fast Visualization of Special Relativistic Effects on Geometry and Illumination
[article]
2000
EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization
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The physical basis consists of the relativistic aberration of light, the Doppler effect, and the searchlight effect. ...
They account for changes of apparent geometry, color, and brightness of the objects. ...
The rotation T rot, a takes into account that the direction of motion differs from the z axis of the sphere. ...
doi:10.2312/vissym/vissym00/219-228
fatcat:3axxsjz5und67hlofhk5f6d2wu
Fast Visualization of Special Relativistic Effects on Geometry and Illumination
[chapter]
2000
Eurographics
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The physical basis consists of the relativistic aberration of light, the Doppler effect, and the searchlight effect. ...
They account for changes of apparent geometry, color, and brightness of the objects. ...
The rotation T rot, a takes into account that the direction of motion differs from the z axis of the sphere. ...
doi:10.1007/978-3-7091-6783-0_22
fatcat:uf3ntincsrcnzfcoq5mpqnfhnq
Quantitative Ratiometric Imaging of FRET-Biosensors in Living Cells
[chapter]
2013
Methods in Cell Biology
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Here, we will cover the basic approaches useful for processing the raw image data sets into relativistic ratiometric measurements, capable of depicting relative differences in the protein activation states ...
The image data sets obtained from these sensors require careful processing in order to represent the actual protein activation events. ...
Another key point is the use of frame averaging when obtaining the shading images. We routinely take 20 FOVs and average in order to produce one shading correction image. ...
doi:10.1016/b978-0-12-407761-4.00025-7
pmid:23931524
pmcid:PMC3789067
fatcat:42344hguabbhjnvcxpdlh7zyua
Neutrino properties from cosmology
[article]
2017
arXiv
pre-print
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of different parameters by taking into account datasets from different redshift. ...
This bound strongly improves once CMB lensing is taken into account (M ν < 0.14 eV at 95% c.l.). ...
arXiv:1705.00496v1
fatcat:6qtzzhjatjhdxheyocaxmaqfvy
Progress in Rendering and Modeling for Digital Planetariums
[article]
2010
Eurographics State of the Art Reports
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Incorporating these algorithms into the next generation of dome display software and production tools will help advance digital planetariums toward make full use of their potential. ...
The rendering algorithm takes scattering phase function, albedo, and multiple scattering effects into account. ...
In a second step, analyzing photographs at visible wavelengths while taking into account the recovered ionized gas distribution also yields the axisymmetric dust component. ...
doi:10.2312/ega.20101000
fatcat:5pm4lrsponay7b33wfr367lgly
Page 433 of Physical Review Vol. 52, Issue 5
[page]
1937
Physical Review
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This involves the deter- mination of an effective scattering angle taking into account the geometry of the scattering chamber. ...
Referring to Fig. 1 it will be seen how we have divided the volume of the helium gas effective in scattering the radiation (shaded re- gion) into five zones corresponding to approxi- mately equal steps ...
The current ability to test theories of gravity with black hole shadows
2018
Nature Astronomy
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To this end, we perform general-relativistic magnetohydrodynamical (GRMHD) simulations and use general-relativistic radiative transfer (GRRT) calculations to generate synthetic shadow images of a magnetised ...
In addition, and for the first time, we perform GRMHD simulations and GRRT calculations for a dilaton BH, which we take as a representative solution of an alternative theory of gravity. ...
This research is supported by the ERC synergy grant "BlackHoleCam: Imaging the Event Horizon of Black Holes" (Grant No. 610058). ZY acknowledges support from an Alexander von Humboldt Fellowship. ...
doi:10.1038/s41550-018-0449-5
fatcat:wzid4yc73vf4lb23ubba7ul6mi
RESOLVING THE INNERMOST REGION OF THE ACCRETION DISK OF THE LENSED QUASAR Q2237+0305 THROUGH GRAVITATIONAL MICROLENSING
2015
Astrophysical Journal Letters
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2015 pre-print arXiv:1511.04896v1 fatcat:pllvg3wrinak7ije5nlmczxhyi
We also allow for a linear gradient that can account for an additional varying background effect of microlensing. ...
We study three high magnification microlensing events, generally recognized as probable caustic crossings, in the optical light curves of the multiply imaged quasar Q 2237+0305. ...
Perhaps the coincidence is not so surprising taking into account that the three HME have, in fact, been selected among others as the best candidates for single caustic crossing. ...
doi:10.1088/2041-8205/814/2/l26
fatcat:osblzxnwjvbchfoudec5zluojy
Strong gravitational lensing by Schwarzschild black holes
2008
Astrophysics
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2008 pre-print arXiv:0803.2468v1 fatcat:kg72mh74yjeq7jppixlevzp7z4
The properties of the relativistic rings which show up in images of a source when a black hole lies between the source and observer are examined. ...
The impact parameters are calculated, along with the distances of closest approach of the rays which form a relativistic ring, their angular sizes, and their "magnification" factors, which are much less ...
Some effects associated with taking the motion of photons near the gravitational radius of a black hole into account, have been discussed before [3, 4] . ...
doi:10.1007/s10511-008-0011-8
fatcat:wv7t46cbbvgafowuhgsyh247ta
Demonstration of Single-Shot Picosecond Time-Resolved MeV Electron Imaging Using a Compact Permanent Magnet Quadrupole Based Lens
2016
Physical Review Letters
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We present the results of an experiment where a short focal length (~ 1.3 cm) permanent magnet electron lens is used to image micron-size features of a metal sample in a single shot, using an ultra- high ...
Start-to-end simulations of the image formation process are performed taking into account multiple elastic and inelastic scattering of electrons inside the sample. ...
One path to SPTEM requires replacing the 100 keV typical of conventional TEM's with MeV electrons in order to take advantage of the relativistic suppression of the space-charge effects. ...
doi:10.1103/physrevlett.117.024801
pmid:27447510
fatcat:hzor36ulznhqbji65eryzf3vvm
Line shifts in accretion disks—the case of Fe K α $\alpha$
2016
Astrophysics and Space Science
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2016 pre-print arXiv:1601.02389v1 fatcat:lqob76dq5bhspdgfcq3s4ytzgy
Here we present a short overview and main results of our investigations of several effects which can induce shifts in the broad Fe Kα line emitted from relativistic accretion disks around single and binary ...
The presented results demonstrate that all these effects could have a significant influence on the observed profiles of the broad Fe Kα line emitted from relativistic accretion disks around single and ...
However, one should take into account that some other phenomena, such as gravitational microlensing could also induce line shifts (see e.g. Popović et al. 2003a Popović et al. ...
doi:10.1007/s10509-016-2653-z
fatcat:ik57uevipzb3fifpojwpm6ey4i
Long-lasting injection of solar energetic electrons into the heliosphere
2018
Astronomy and Astrophysics
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2018 pre-print arXiv:1802.04722v1 fatcat:52ar7v5zcrde7aiytyxfvnkwga
White areas denote pitch angle ranges which were not covered by the telescopes taking into account the opening angles of the apertures. ...
The spacecraft motion with time and the measured solar-wind speed have been taken into account to determine the magnetic footpoint positions at the Sun allowing for a more accurate determination of the ...
doi:10.1051/0004-6361/201731573
fatcat:dd2eqnvqizdkdaxhrlebng2xnq
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