Results 11 to 20 of about 65,471 (302)

Single Image Dehazing Using Global Illumination Compensation [PDF]

Sensors, 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, Chenke Xu, Wei Zhang, Xu Yang   +3 more
doaj   +2 more sources

Incrementally baked global illumination

Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, 2019
Global Illumination is affected by the slightest change in a 3D scene, requiring a complete reevaluation of the distributed light. In cases where real-time algorithms are not applicable due to high demands on the achievable accuracy, this recomputation from scratch results in artifacts like flickering or noise, disturbing the visual appearance and ...
Luksch, Christan (author), Wimmer, Michael (author), Schwarzler, M. (author)   +2 more
core   +5 more sources

Endo-DET: A Domain-Specific Detection Framework for Multi-Class Endoscopic Disease Detection [PDF]

Journal of Imaging
Gastrointestinal cancers account for roughly a quarter of global cancer incidence, and early detection through endoscopy has proven effective in reducing mortality.
Yijie Lu, Yixiang Zhao, Qiang Yu, Wei Shao, Renbin Shen   +4 more
doaj   +2 more sources

Multiplexed illumination for scene recovery in the presence of global illumination

2011 International Conference on Computer Vision, 2011
Global illumination effects such as inter-reflections and subsurface scattering result in systematic, and often significant errors in scene recovery using active illumination. Recently, it was shown that the direct and global components could be separated efficiently for a scene illuminated with a single light source.
Gu, Jinwei, Kobayashi, Toshihiro, Gupta, Mohit, Nayar, Shree K.   +3 more
openaire   +4 more sources

Exploiting temporal coherence in global illumination [PDF]

Proceedings of the 20th Spring Conference on Computer Graphics, 2004
Producing high quality animations featuring rich object appearance and compelling lighting effects is very time consuming using traditional frame-by-frame rendering systems. In this paper we present a number of global illumination and rendering solutions that exploit temporal coherence in lighting distribution for subsequent frames to improve the ...
Tawara, T., Myszkowski, K. ; https://orcid.org/0000-0002-8505-4141, Dmitriev, K., Havran, V., Damez, C., Seidel, H. ; https://orcid.org/0000-0002-1343-8613   +5 more
openaire   +3 more sources

Dynamic Voxel‐Based Global Illumination

Computer Graphics Forum
AbstractGlobal illumination computation in real time has been an objective for Computer Graphics since its inception. Unfortunately, its implementation has challenged up to now the most advanced hardware and software solutions. We propose a real‐time voxel‐based global illumination solution for a single light bounce that handles static and dynamic ...
Alejandro Cosin Ayerbe, Pierre Poulin, Gustavo Patow   +2 more
openaire   +3 more sources

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

Entropy, 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, André Bigand, Rémi Synave, Samuel Delepoulle, Christophe Renaud   +4 more
doaj   +1 more source

Ray maps for global illumination [PDF]

ACM 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, Jirí Bittner, Hans-Peter Seidel   +2 more
openaire   +2 more sources

Online Illumination Learning for Interactive Global Illumination in Augmented Reality

IEEE 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, Piljoong Jeong, Hajin Choi, Jinwoo Kim, Bochang Moon   +4 more
doaj   +1 more source

Dynamic Diffuse Global Illumination Resampling

, 2022
Interactive global illumination remains a challenge in radiometrically and geometrically complex scenes. Specialized sampling strategies are effective for specular and near‐specular transport because the scattering has relatively low directional variance
Müller, Thomas, Majercik, Zander, Keller, Alexander, Nowrouzezahrai, Derek, McGuire, Morgan   +4 more
core   +1 more source