aflak: Visual programming environment enabling end-to-end provenance management for the analysis of astronomical datasets

Boussejra, Malik Olivier; Uchiki, Rikuo; Takeshima, Yuriko; Matsubayashi, Kazuya; Takekawa, Shunya; Uemura, Makoto; Fujishiro, Issei

doi:10.1016/j.visinf.2019.03.001

Cited by 6 publications

(2 citation statements)

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“…Our framework represents the first accurate Doppler effect computation in interactive volume rendering, corresponding to the motion given by a 3D velocity field. Complementary to our approach, the visualization of 3D integral field spectroscopy (IFS) data, which consists of two spatial and one spectral dimensions, was accomplished using standard 3D rendering techniques by Boussejra et al [BUT * 19] and Uchiki et al [UBZ * 20].…”

Section: Related Workmentioning

confidence: 99%

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Doppler Volume Rendering: A Dynamic, Piecewise Linear Spectral Representation for Visualizing Astrophysics Simulations

Alghamdi

Müller

Villanueva

et al. 2023

Computer Graphics Forum

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We present a novel approach for rendering volumetric data including the Doppler effect of light. Similar to the acoustic Doppler effect, which is caused by relative motion between a sound emitter and an observer, light waves also experience compression or expansion when emitter and observer exhibit relative motion. We account for this by employing spectral volume rendering in an emission–absorption model, with the volumetric matter moving according to an accompanying vector field, and emitting and attenuating light at wavelengths subject to the Doppler effect. By introducing a novel piecewise linearear representation of the involved light spectra, we achieve accurate volume rendering at interactive frame rates. We compare our technique to rendering with traditional point‐based spectral representation, and demonstrate its utility using a simulation of galaxy formation.

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Section: Related Workmentioning

confidence: 99%

“…[BMDF02], who made use of spectral phenomena to create new means of exploring volumetric data. They adapted a linear color model, which allows for quick re-illumination of the scene as a post-processing step [BMTD05]. However, this is only possible if the light source is external, i.e., not part of the volume.…”

Section: Related Workmentioning

confidence: 99%