Výsledky vyhledávání - "Jiří Žára"

Autor: Jiří Žára, Roman Janovský, David Sedlacek

Publikováno v: ICSOFT
Scopus-Elsevier

This paper presents a review of various techniques for improving the performance of neural networks on segmentation task using 3D convolutions and voxel grids – we provide comparison of network with and without max pooling, weighting, masking out t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ce4e558f2471f3476f56a5c8f2423eb
https://doi.org/10.5220/0007830306490656

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Geometric skinning with approximate dual quaternion blending

Autor: Ladislav Kavan, Steven Collins, Carol O'Sullivan, Jiří Žára

Publikováno v: ACM Transactions on Graphics. 27:1-23

Skinning of skeletally deformable models is extensively used for real-time animation of characters, creatures and similar objects. The standard solution, linear blend skinning, has some serious drawbacks that require artist intervention. Therefore, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a69b6c3c669cb279bd3e8a7cb301b2e5
https://doi.org/10.1145/1409625.1409627

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Fast Collision Detection for Skeletally Deformable Models

Autor: Ladislav Kavan, Jiří Žára

Publikováno v: Computer Graphics Forum. 24:363-372

We present a new method of collision detection for models deformed by linear blend skinning. The linear blend skinning (also known as skeleton-subspace deformation, vertex-blending, or enveloping) is a popular method to animate believable organic mod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c4eaf4e72cc7ea2570a715e86ced1b7
https://doi.org/10.1111/j.1467-8659.2005.00861.x

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Fast Robust BSP Tree Traversal Algorithm for Ray Tracing

Autor: Jiří Žára, Jiří Bittner, Vlastimil Havran, Tomás Kopal

Publikováno v: Journal of Graphics Tools. 2:15-23

An orthogonal BSP (binary space partitioning) tree is a commonly used spatial subdivision data structure for ray-tracing acceleration. While the construction of a BSP tree takes a relatively short time, the efficiency of a traversal algorithm signifi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::996b6b8ba501265368ed55401f8959ca
https://doi.org/10.1080/10867651.1997.10487481

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Making radiance and irradiance caching practical

Autor: Kadi Bouatouch, Jaroslav Křivánek, Sumanta Pattanaik, Jiří Žára

Publikováno v: SIGGRAPH Classes
Scopus-Elsevier
Eurographics Symposium on Rendering
Eurographics Symposium on Rendering, EUROGRAPHICS, Jun 2006, Nicosie, Cyprus

Radiance and irradiance caching are efficient global illumination algorithms based on interpolating indirect illumination from a sparse set of cached values. In this paper we propose an adaptive algorithm for guiding spatial density of the cached val

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7df46b9420f402f36bfb1916e5d2288d
https://doi.org/10.1145/1401132.1401230

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Polypostors

Autor: Carol O'Sullivan, Steven Collins, Simon Dobbyn, Ladislav Kavan, Jiří Žára

Publikováno v: SI3D

Various methods have been proposed to animate and render large crowds of humans in real time for applications such as games and interactive walkthroughs. Recent methods have been developed to render large numbers of pre-computed image-based human rep

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b736dff2f611bf2f104b09e076e59c56
https://doi.org/10.1145/1342250.1342273

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Skinning with dual quaternions

Autor: Carol O'Sullivan, Ladislav Kavan, Jiří Žára, Steven Collins

Publikováno v: SI3D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::425ea22f1a95c79e7bbd510784db9f15
https://doi.org/10.1145/1230100.1230107

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Skinning arbitrary deformations

Autor: Ladislav Kavan, Carol O'Sullivan, Rachel McDonnell, Simon Dobbyn, Jiří Žára

Publikováno v: SI3D

Matrix palette skinning (also known as skeletal subspace deformation) is a very popular real-time animation technique. So far, it has only been applied to the class of quasi-articulated objects, such as moving human or animal figures. In this paper,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c09798e3dd7eb3825ef05df8e99b06f
https://doi.org/10.1145/1230100.1230109

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Efficient collision detection for spherical blend skinning

Autor: Ladislav Kavan, Jiří Žára, Carol O'Sullivan

Publikováno v: GRAPHITE

Recently, two algorithms improving the real-time simulation of articulated models in virtual environments have been published: 1) fast collision detection for linear blend skinning and 2) spherical blend skinning. Both linear and spherical blending s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d098ce95fb38ff51a489e4a13555d78
https://doi.org/10.1145/1174429.1174452

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Fast approximation to spherical harmonics rotation

Autor: Kadi Bouatouch, Jiří Žára, Sumanta Pattanaik, Jaroslav Křivánek, Jaakko Konttinen

Publikováno v: SIGGRAPH Sketches

We present a fast and simple approximation of spherical harmonic rotation which decreases the asymptotic complexity and achieves a speedup of four to six in practical applications. The rotation procedure's simplicity allows implementation in a pixel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b837e23440e17b8e543e899d781466d
https://doi.org/10.1145/1179849.1180042

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