A portable capturing system for image-based relighting.

Pang Wai Man.Thesis submitted in: July 2002.Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.Includes bibliographical references (leaves 108-114).Abstracts in English and Chinese.Abstract --- p.iiAcknowledgments --- p.ivChapter 1 --- Introduction --- p.1Chapter 1.1 --- Image-based Rendering and Modeling --- p.1Chapter 1.1.1 --- Image-based versus Geometry-based --- p.5Chapter 1.2 --- Capturing for Graphics --- p.6Chapter 1.3 --- Organization of this Thesis --- p.8Chapter 2 --- Image-based Rendering and Relighting --- p.10Chapter 2.1 --- Theoretical Concepts --- p.11Chapter 2.1.1 --- Plenoptic Illumination Function --- p.11Chapter 2.1.2 --- Apparent BRDF --- p.13Chapter 2.1.3 --- Types of lighting --- p.14Chapter 2.1.4 --- Image superposition --- p.16Chapter 2.2 --- General Rendering Pipeline --- p.18Chapter 2.3 --- Rendering Techniques --- p.21Chapter 2.3.1 --- Nearest Neighbours and Interpolation --- p.21Chapter 2.3.2 --- Image Warping --- p.23Chapter 2.4 --- IBR Representations and applications --- p.26Chapter 2.4.1 --- Navigation --- p.28Chapter 2.4.2 --- Relighting Representations --- p.35Chapter 2.4.3 --- High Dynamic Range Imaging --- p.38Chapter 2.5 --- Chapter Summary --- p.42Chapter 3 --- Capturing Methods --- p.44Chapter 3.1 --- Spatial Tracking Approaches --- p.45Chapter 3.1.1 --- Mechanical based Method --- p.46Chapter 3.1.2 --- Electromagnetic based Method --- p.48Chapter 3.1.3 --- Vision based Method --- p.50Chapter 3.1.4 --- Comparison --- p.51Chapter 3.2 --- High Dynamic Range Imaging --- p.53Chapter 3.2.1 --- Successive Exposure Capturing --- p.53Chapter 3.2.2 --- Spatial Varing Filter --- p.53Chapter 3.2.3 --- Special Designed Hardware --- p.55Chapter 3.3 --- Chapter Summary --- p.56Chapter 4 --- System Design and Implementation --- p.58Chapter 4.1 --- System Overview --- p.58Chapter 4.2 --- The Setup --- p.60Chapter 4.3 --- Capturing Procedures --- p.61Chapter 4.3.1 --- Calibrations --- p.61Chapter 4.4 --- Vision based tracking --- p.64Chapter 4.4.1 --- The pin-hole camera model --- p.65Chapter 4.4.2 --- Basics of Camera Calibration --- p.66Chapter 4.5 --- Light Vector Tracking --- p.70Chapter 4.5.1 --- The Transformations --- p.70Chapter 4.5.2 --- Tracking Accuracy --- p.71Chapter 4.5.3 --- Tracking Range Enlargement --- p.72Chapter 4.6 --- Capturing Experiment --- p.74Chapter 4.7 --- Sampling Analysis --- p.74Chapter 4.8 --- Chapter Summary --- p.78Chapter 5 --- Data Postprocessing --- p.80Chapter 5.1 --- Scattered Data Fitting --- p.81Chapter 5.1.1 --- Spherical Delaunay Triangulation --- p.83Chapter 5.1.2 --- Interpolation on Sphere --- p.86Chapter 5.2 --- Compression --- p.88Chapter 5.3 --- Chapter Summary --- p.90Chapter 6 --- Relit Results --- p.91Chapter 6.1 --- Relighting with Multiple Directional Lights --- p.92Chapter 6.2 --- Relighting with Environmental Maps --- p.94Chapter 7 --- Conclusion --- p.101Chapter 7.1 --- Future Research Aspect --- p.102Chapter A --- System User Guide --- p.104Chapter A.1 --- Equipment Configuration --- p.104Chapter A.2 --- Operation Guide --- p.105Chapter A.3 --- Software Components --- p.106Chapter A.3.1 --- Image capturing - lightcap --- p.106Chapter A.3.2 --- Raw Frame Extraction ´ؤ lfprocess --- p.107Chapter A.3.3 --- Resampling and Compression - svscatterppm2urdf . --- p.107Bibliography --- p.10