Authors:
Rupesh N. Shet
;
H. E. Bez
and
E. A. Edirisinghe
Affiliation:
Loughborough University, United Kingdom
Keyword(s):
Texture synthesis Discrete Wavelet Transform (DWT), EZW, Rendering, Bézier surfaces.
Related
Ontology
Subjects/Areas/Topics:
CAGD/CAD/CAM Systems
;
Computer Vision, Visualization and Computer Graphics
;
Fundamental Methods and Algorithms
;
Geometry and Modeling
;
Surface Modeling
;
Texture Models, Analysis, and Synthesis
Abstract:
Existing texture synthesis algorithms fail to deliver effectively in application areas where progressive rendering of texture is required. To provide a practical solution to this problem we propose a novel algorithm for progressive-texture synthesis on surfaces, which makes use of the Embedded Zero-tree of Wavelet (EZW) idea proposed by Shapiro et al., 1993 which is capable of prioritising the coefficients of a DWT decomposed image according to their visual significance. We demonstrate the use of the proposed algorithm on texturing a single biquadratic surface and two smoothly joined biquadratic surfaces. It is further shown that the proposed texture synthesis approach on Bézier patches allows the algorithm's general use in texture synthesis on many common surface topologies and can be generalised for arbitrarily shaped surfaces. We provide experimental results to prove the effectiveness of the proposed approach, when synthesising textures of regular, irregular and stochastic nature.
Further experimental results are provided to illustrate the practical use of the proposed texture synthesis algorithm in resource constrained application domains.
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