Zobrazeno 1 - 10
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pro vyhledávání: '"Fischer, Michael P."'
We derive methods to compute higher order differentials (Hessians and Hessian-vector products) of the rendering operator. Our approach is based on importance sampling of a convolution that represents the differentials of rendering parameters and show
Externí odkaz:
http://arxiv.org/abs/2412.03489
Autor:
Fischer, Michael, Georgiev, Iliyan, Groueix, Thibault, Kim, Vladimir G., Ritschel, Tobias, Deschaintre, Valentin
Decomposing 3D assets into material parts is a common task for artists and creators, yet remains a highly manual process. In this work, we introduce Select Any Material (SAMa), a material selection approach for various 3D representations. Building on
Externí odkaz:
http://arxiv.org/abs/2411.19322
Autor:
Zibrowius, Bodo, Fischer, Michael
The quadrupole coupling constant $C_{\text{Q}}$ and the asymmetry parameter $\eta$ of the aluminium nuclei in two polymorphs of the complex aluminium hydride CsAlH4 are determined from both $^{27}$Al MAS NMR spectra and $^{27}$Al NMR spectra recorded
Externí odkaz:
http://arxiv.org/abs/2410.07731
Autor:
Fischer, Michael, Li, Zhengqin, Nguyen-Phuoc, Thu, Bozic, Aljaz, Dong, Zhao, Marshall, Carl, Ritschel, Tobias
A Neural Radiance Field (NeRF) encodes the specific relation of 3D geometry and appearance of a scene. We here ask the question whether we can transfer the appearance from a source NeRF onto a target 3D geometry in a semantically meaningful way, such
Externí odkaz:
http://arxiv.org/abs/2402.08622
Bounding volumes are an established concept in computer graphics and vision tasks but have seen little change since their early inception. In this work, we study the use of neural networks as bounding volumes. Our key observation is that bounding, wh
Externí odkaz:
http://arxiv.org/abs/2310.06822
Autor:
Fischer, Michael, Ritschel, Tobias
Gradient-based optimization is now ubiquitous across graphics, but unfortunately can not be applied to problems with undefined or zero gradients. To circumvent this issue, the loss function can be manually replaced by a ``surrogate'' that has similar
Externí odkaz:
http://arxiv.org/abs/2308.05739
Repulsion between individuals within a finite radius is encountered in numerous applications, including cell exclusion, i.e. avoidance of overlapping cells, bird flocks, or microscopic pedestrian models. We define such individual based particle dynam
Externí odkaz:
http://arxiv.org/abs/2302.12099
Autor:
Fischer, Michael, Ritschel, Tobias
Current differentiable renderers provide light transport gradients with respect to arbitrary scene parameters. However, the mere existence of these gradients does not guarantee useful update steps in an optimization. Instead, inverse rendering might
Externí odkaz:
http://arxiv.org/abs/2211.17263
Autor:
Zibrowius, Bodo, Fischer, Michael
The quadrupole coupling constant $C_Q$ and the asymmetry parameter $\eta$ have been determined for two complex aluminium hydrides from $^{27}$Al NMR spectra recorded for stationary samples by using the Solomon echo sequence. The thus obtained data fo
Externí odkaz:
http://arxiv.org/abs/2211.01039
We propose a method to accelerate the joint process of physically acquiring and learning neural Bi-directional Reflectance Distribution Function (BRDF) models. While BRDF learning alone can be accelerated by meta-learning, acquisition remains slow as
Externí odkaz:
http://arxiv.org/abs/2210.03510