Ph.D. thesis: Junyu Dong
Three-dimensional Surface Texture Synthesis
Heriot-Watt University,
2003.
Entire Thesis PDF
Abstract
Texture synthesis has been extensively investigated by
both computer vision and computer graphics communities during the past twenty
years. However, the input and output are normally 2D intensity texture images.
If the subjects are 3D surface textures (such as brick, woven or knitted
textiles, embossed wallpapers etc.), these 2D synthesis techniques cannot
provide the information required for rendering under other than the original
illumination and viewpoint conditions. The aim of this thesis therefore is to
develop inexpensive approaches for the synthesis of 3D surface textures. Few
publications are available in this research area.
We first introduce an overall framework for the
synthesis of 3D surface textures. The framework essentially combines surface
representation methods with 2D texture synthesis algorithms to synthesise and
relight new surface representations. Then we investigate five low-dimensional
methods, namely the 3I, Gradient, PTM, Eigen3 and Eigen6 methods, for extracting
representations from a set of images of the 3D surface texture sample. The
surface representations can be relit to generate new images under arbitrary
lighting directions by linear combinations. These methods are quantitatively
assessed by comparing the original and relit images. The results show that the
Eigen6 produces the best performance.
We select a 2D texture synthesis algorithm which is
then extended into multi-dimensional space to use the five surface
representations as input. In this way, we develop five approaches for the
synthesis of 3D surface textures. The synthesised results are compatible with
computer graphics systems and can be used in real-time rendering applications.
The five synthesis approaches are qualitatively assessed by employing
psychophysical experiments and non-parametric statistics. The results show that
the two low-dimensional methods, the Gradient and Eigen3, on average offer as
good a performance as of any of the other methods and incur low computational
cost.
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Table of Contents
Preliminary Pages (chapter0.pdf)
Chapter 1 Introduction (chapter1.pdf)
Chapter 2 Literature Survey (chapter2.pdf)
Chapter 3 Framework (chapter3.pdf)
Chapter 4 Surface Texture Representations for Relighting (chapter4.pdf)
Chapter 5 Synthesis Algorithms (chapter5.pdf)
Chapter 6 Synthesis and Relighting (chapter6.pdf)
Chapter 7 Conclusion and Discussion (chapter7.pdf)
Appendix (appendix.pdf)
References (references.pdf)
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