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Interactive illumination and navigation control in an image-based environment.

Fu Chi-wing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references (leaves 141-149). / Abstract --- p.i / Acknowledgments --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Introduction to Image-based Rendering --- p.1 / Chapter 1.2 --- Scene Complexity Independent Property --- p.2 / Chapter 1.3 --- Application of this Research Work --- p.3 / Chapter 1.4 --- Organization of this Thesis --- p.4 / Chapter 2 --- Illumination Control --- p.7 / Chapter 2.1 --- Introduction --- p.7 / Chapter 2.2 --- Apparent BRDF of Pixel --- p.8 / Chapter 2.3 --- Sampling Illumination Information --- p.11 / Chapter 2.4 --- Re-rendering --- p.13 / Chapter 2.4.1 --- Light Direction --- p.15 / Chapter 2.4.2 --- Light Intensity --- p.15 / Chapter 2.4.3 --- Multiple Light Sources --- p.15 / Chapter 2.4.4 --- Type of Light Sources --- p.18 / Chapter 2.5 --- Data Compression --- p.22 / Chapter 2.5.1 --- Intra-pixel coherence --- p.22 / Chapter 2.5.2 --- Inter-pixel coherence --- p.22 / Chapter 2.6 --- Implementation and Result --- p.22 / Chapter 2.6.1 --- An Interactive Viewer --- p.22 / Chapter 2.6.2 --- Lazy Re-rendering --- p.24 / Chapter 2.7 --- Conclusion --- p.24 / Chapter 3 --- Navigation Control - Triangle-based Warping Rule --- p.29 / Chapter 3.1 --- Introduction to Navigation Control --- p.29 / Chapter 3.2 --- Related Works --- p.30 / Chapter 3.3 --- Epipolar Geometry (Perspective Projection Manifold) --- p.31 / Chapter 3.4 --- Drawing Order for Pixel-Sized Entities --- p.35 / Chapter 3.5 --- Triangle-based Image Warping --- p.36 / Chapter 3.5.1 --- Image-based Triangulation --- p.36 / Chapter 3.5.2 --- Image-based Visibility Sorting --- p.40 / Chapter 3.5.3 --- Topological Sorting --- p.44 / Chapter 3.6 --- Results --- p.46 / Chapter 3.7 --- Conclusion --- p.48 / Chapter 4 --- Panoramic Projection Manifold --- p.52 / Chapter 4.1 --- Epipolar Geometry (Spherical Projection Manifold) --- p.53 / Chapter 4.2 --- Image Triangulation --- p.56 / Chapter 4.2.1 --- Optical Flow --- p.56 / Chapter 4.2.2 --- Image Gradient and Potential Function --- p.57 / Chapter 4.2.3 --- Triangulation --- p.58 / Chapter 4.3 --- Image-based Visibility Sorting --- p.58 / Chapter 4.3.1 --- Mapping Criteria --- p.58 / Chapter 4.3.2 --- Ordering of Two Triangles --- p.59 / Chapter 4.3.3 --- Graph Construction and Topological Sort --- p.63 / Chapter 4.4 --- Results --- p.63 / Chapter 4.5 --- Conclusion --- p.65 / Chapter 5 --- Panoramic-based Navigation using Real Photos --- p.69 / Chapter 5.1 --- Introduction --- p.69 / Chapter 5.2 --- System Overview --- p.71 / Chapter 5.3 --- Correspondence Matching --- p.72 / Chapter 5.3.1 --- Basic Model of Epipolar Geometry --- p.72 / Chapter 5.3.2 --- Epipolar Geometry between two Neighbor Panoramic Nodes --- p.73 / Chapter 5.3.3 --- Line and Patch Correspondence Matching --- p.74 / Chapter 5.4 --- Triangle-based Warping --- p.75 / Chapter 5.4.1 --- Why Warp Triangle --- p.75 / Chapter 5.4.2 --- Patch and Layer Construction --- p.76 / Chapter 5.4.3 --- Triangulation and Mesh Subdivision --- p.76 / Chapter 5.4.4 --- Layered Triangle-based Warping --- p.77 / Chapter 5.5 --- Implementation --- p.78 / Chapter 5.5.1 --- Image Sampler and Panoramic Stitcher --- p.78 / Chapter 5.5.2 --- Interactive Correspondence Matcher and Triangulation --- p.79 / Chapter 5.5.3 --- Basic Panoramic Viewer --- p.79 / Chapter 5.5.4 --- Formulating Drag Vector and vn --- p.80 / Chapter 5.5.5 --- Controlling Walkthrough Parameter --- p.82 / Chapter 5.5.6 --- Interactive Web-based Panoramic Viewer --- p.83 / Chapter 5.6 --- Results --- p.84 / Chapter 5.7 --- Conclusion and Possible Enhancements --- p.84 / Chapter 6 --- Compositing Warped Images for Object-based Viewing --- p.89 / Chapter 6.1 --- Modeling Object-based Viewing --- p.89 / Chapter 6.2 --- Triangulation and Convex Hull Criteria --- p.92 / Chapter 6.3 --- Warping Multiple Views --- p.94 / Chapter 6.3.1 --- Method I --- p.95 / Chapter 6.3.2 --- Method II --- p.95 / Chapter 6.3.3 --- Method III --- p.95 / Chapter 6.4 --- Results --- p.97 / Chapter 6.5 --- Conclusion --- p.100 / Chapter 7 --- Complete Rendering Pipeline --- p.107 / Chapter 7.1 --- Reviews on Illumination and Navigation --- p.107 / Chapter 7.1.1 --- Illumination Rendering Pipeline --- p.107 / Chapter 7.1.2 --- Navigation Rendering Pipeline --- p.108 / Chapter 7.2 --- Analysis of the Two Rendering Pipelines --- p.109 / Chapter 7.2.1 --- Combination on the Architectural Level --- p.109 / Chapter 7.2.2 --- Ensuring Physical Correctness --- p.111 / Chapter 7.3 --- Generalizing Apparent BRDF --- p.112 / Chapter 7.3.1 --- Difficulties to Encode BRDF with Spherical Harmonics --- p.112 / Chapter 7.3.2 --- Generalize Apparent BRDF --- p.112 / Chapter 7.3.3 --- Related works for Encoding the generalized apparent BRDF --- p.113 / Chapter 7.4 --- Conclusion --- p.116 / Chapter 8 --- Conclusion --- p.117 / Chapter A --- Spherical Harmonics --- p.120 / Chapter B --- It is Rare for Cycles to Exist in the Drawing Order Graph --- p.123 / Chapter B.1 --- Theorem 3 --- p.123 / Chapter B.2 --- Inside and Outside-directed Triangles in a Triangular Cycle --- p.125 / Chapter B.2.1 --- Assumption --- p.126 / Chapter B.2.2 --- Inside-directed and Outside-directed triangles --- p.126 / Chapter B.3 --- Four Possible Cases to Form a Cycle --- p.127 / Chapter B.3.1 --- Case(l) Triangular Fan --- p.128 / Chapter B.3.2 --- Case(2) Two Outside-directed Triangles --- p.129 / Chapter B.3.3 --- Case(3) Three Outside-directed Triangles --- p.130 / Chapter B.3.4 --- Case(4) More than Three Outside-directed Triangles --- p.131 / Chapter B.4 --- Experiment --- p.132 / Chapter C --- Deriving the Epipolar Line Formula on Cylindrical Projection Manifold --- p.133 / Chapter C.1 --- Notations --- p.133 / Chapter C.2 --- General Formula --- p.134 / Chapter C.3 --- Simplify the General Formula to a Sine Curve --- p.137 / Chapter C.4 --- Show that the Epipolar Line is a Sine Curve Segment --- p.139 / Chapter D --- Publications Related to this Research Work --- p.141 / Bibliography --- p.143

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_322645
Date January 1999
ContributorsFu, Chi-wing., Chinese University of Hong Kong Graduate School. Division of Computer Science and Engineering.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xiv, 149 leaves : ill. (some col.) ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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