加权张量化分数布朗纹理

加权张量化分数布朗场及相关函数空间的正则性

Regularity of Weighted Tensorized Fractional Brownian Fields and associated function spaces

本文研究新型自相似高斯场 WTFBS 的局部正则性，并提出加权张量化 Besov 空间，借助 Littlewood-Paley 理论与双曲小波分析刻画其函数空间结构。

Texture Modeling by Gaussian fields with prescribed local orientation

This paper presents a new framework for oriented texture modeling. We introduce a new class of Gaussian fields, called Locally Anisotropic Fractional Brownian Fields, with prescribed local orientation at any point. These fields are a local version of a specific class of anisotropic self-similar Gaussian fields with stationary increments. The simulation of such textures is obtained using a new algorithm mixing the tangent field formulation and a turning band method, this latter method having proved its efficiency for generating stationary anisotropic textures. Numerical experiments show the abi…

Modélisations de textures par champ gaussien à orientation locale prescrite

This paper presents two new models of oriented texture, based on a new class of Gaussian fields, called locally anisotropic fractional Brownian fields, with prescribed local orientation at any point. These fields are a local version of a specific class of anisotropic self-similar Gaussian fields with stationary increments. The simulation of such textures is obtained using a new algorithm mixing the tangent field formulation with the Cholesky method or the turning band method, this latter method having proved its efficiency for generating stationary anisotropic textures. Numerical experiments s…