Modeling bidirectional texture functions with multivariate spherical radial basis functions

Yu Ting Tsai*, Kuei Li Fang, Wen-Chieh Lin, Zen-Chung Shih

*此作品的通信作者

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

This paper presents a novel parametric representation for bidirectional texture functions. Our method mainly relies on two original techniques, namely, multivariate spherical radial basis functions (SRBFs) and optimized parameterization. First, since the surface appearance of a real-world object is frequently a mixed effect of different physical factors, the proposed sum-of-products model based on multivariate SRBFs especially provides an intrinsic and efficient representation for heterogenous materials. Second, optimized parameterization particularly aims at overcoming the major disadvantage of traditional fixed parameterization. By using a parametric model to account for variable transformations, the parameterization process can be tightly integrated with multivariate SRBFs into a unified framework. Finally, a hierarchical fitting algorithm for bidirectional texture functions is developed to exploit spatial coherence and reduce computational cost. Our experimental results further reveal that the proposed representation can easily achieve high-quality approximation and real-time rendering performance.

原文English
文章編號5661780
頁(從 - 到)1356-1369
頁數14
期刊IEEE Transactions on Pattern Analysis and Machine Intelligence
33
發行號7
DOIs
出版狀態Published - 30 5月 2011

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