Results 1 to 10 of about 63,527 (165)

Single Image Dehazing Using Global Illumination Compensation [PDF]

open access: yesSensors, 2022
The existing dehazing algorithms hardly consider background interference in the process of estimating the atmospheric illumination value and transmittance, resulting in an unsatisfactory dehazing effect. In order to solve the problem, this paper proposes
Junbao Zheng   +3 more
doaj   +2 more sources

Stopping Criterion during Rendering of Computer-Generated Images Based on SVD-Entropy

open access: yesEntropy, 2021
The estimation of image quality and noise perception still remains an important issue in various image processing applications. It has also become a hot topic in the field of photo-realistic computer graphics where noise is inherent in the calculation ...
Jérôme Buisine   +4 more
doaj   +1 more source

Ray maps for global illumination [PDF]

open access: yesACM SIGGRAPH 2004 Sketches on - SIGGRAPH '04, 2004
Fast rendering of high quality images with global illumination is still a challenging task. A popular technique addressing this topic is photon mapping [Jensen 2001]. Photon mapping uses a global photon map for indirect illumination and a caustics map for caustics.
Vlastimil Havran   +2 more
openaire   +2 more sources

Online Illumination Learning for Interactive Global Illumination in Augmented Reality

open access: yesIEEE Access, 2022
Augmenting virtual objects into a real scene requires estimating the scene illumination so that the augmented objects can become visually coherent with real objects.
Wonjun Lee   +4 more
doaj   +1 more source

Hash-Based Hierarchical Caching and Layered Filtering for Interactive Previews in Global Illumination Rendering

open access: yesComputers, 2020
Modern Monte-Carlo-based rendering systems still suffer from the computational complexity involved in the generation of noise-free images, making it challenging to synthesize interactive previews. We present a framework suited for rendering such previews
Thorsten Roth   +4 more
doaj   +1 more source

Local estimations of Monte Carlo method with the object spectral representation in the solution of global illumination [PDF]

open access: yesКомпьютерные исследования и моделирование, 2012
The article deals with the local and double local estimation of the Monte Carlo method for solving the equation of global illumination. The local estimation allows calculating the illumination at any point at the approximation of diffuse reflection ...
Vladimir Pavlovich Budak   +2 more
doaj   +1 more source

A Framework for Learning and Rapid Implementation of Real-Time Global Illumination Methods

open access: yesApplied Sciences, 2022
Photorealism has become a growing requirement for real-time graphics applications. Among the components needed to obtain photorealism, one of the most important is the simulation of the light transport, the result of which is called global illumination ...
Cristian Lambru   +4 more
doaj   +1 more source

Web3D Client-Enhanced Global Illumination via GAN for Health Visualization

open access: yesIEEE Access, 2020
3D visualization of digital human becomes a key tool for the medical visualization, especially for medical education. Web3D technology has been commonly applied in this field.
Ning Xie, Yifan Lu, Chang Liu
doaj   +1 more source

A New Model of Solar Illumination of Earth’s Atmosphere during Night-Time

open access: yesEarth, 2021
In this work, a solar illumination model of the Earth’s atmosphere is developed. The developed model allows us to determine with extreme accuracy how the atmospheric illumination varies during night hours on a global scale.
Roberto Colonna, Valerio Tramutoli
doaj   +1 more source

Fog Effects on Time-of-Flight Imaging Investigated by Ray-Tracing Simulations

open access: yesProceedings, 2018
Time-of-Flight (ToF) sensors are a key technology for autonomous vehicles and autonomous mobile robotics. Quantifying the extent of perturbation induced by atmospheric phenomena on ToF imaging is critical to identify effective correction strategies. Here
Cristina Consani   +3 more
doaj   +1 more source

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