Optimised mesh traversal for dynamic mesh compression

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F11%3A43899267" target="_blank" >RIV/49777513:23520/11:43899267 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Optimised mesh traversal for dynamic mesh compression

Popis výsledku v původním jazyce

During the last decade many algorithms for compressing 3D animations represented by sequences of triangular meshes have been proposed. Most of these algorithms are lossy in their nature, i.e. the reconstructed data do not exactly match the algorithm input. Quite surprisingly, most of the existing algorithms mainly use only general compression techniques, such as entropy coding, quantisation, PCA or wavelet decomposition, while the inherent geometrical properties of the compressed surface remain unexploited. In this paper we focus on geometry specific optimisation: we extend the PCA-based dynamic mesh compression by optimising the order in which the mesh is traversed. We will show that considering the residual entropy and by optimising the gate selection strategy we may reduce the data rates by 15% on average, while the error introduced by compression remains unchanged. This optimisation improves the performance of our encoder above the performance of current state of the art algorithms

Název v anglickém jazyce

Optimised mesh traversal for dynamic mesh compression

Popis výsledku anglicky

During the last decade many algorithms for compressing 3D animations represented by sequences of triangular meshes have been proposed. Most of these algorithms are lossy in their nature, i.e. the reconstructed data do not exactly match the algorithm input. Quite surprisingly, most of the existing algorithms mainly use only general compression techniques, such as entropy coding, quantisation, PCA or wavelet decomposition, while the inherent geometrical properties of the compressed surface remain unexploited. In this paper we focus on geometry specific optimisation: we extend the PCA-based dynamic mesh compression by optimising the order in which the mesh is traversed. We will show that considering the residual entropy and by optimising the gate selection strategy we may reduce the data rates by 15% on average, while the error introduced by compression remains unchanged. This optimisation improves the performance of our encoder above the performance of current state of the art algorithms

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JC - Počítačový hardware a software

OECD FORD obor

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Projekt

<a href="/cs/project/LC06008" target="_blank" >LC06008: Centrum počítačové grafiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Graphical Models

ISSN

1524-0703

e-ISSN

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Svazek periodika

73

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

218-230

Kód UT WoS článku

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EID výsledku v databázi Scopus

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