Large-area high-resolution displays are essential for scientific visualization, entertainment, and defense applications. A popular way to realize such displays is to tile multiple projectors together to create one large display. As opposed to a 19” diagonal monitor with a resolution of 60 pixels per inch, tiled multi-projector displays are often 10’ x 8’ and have a resolution of 100-300 pixels per inch. The research in this area spans several traditional areas in computer science, including computer vision, computer graphics, image processing, human-computer interaction, and visualization tools. This book shows how to make such displays inexpensive, flexible, and commonplace by making them both perceptually and functionally seamless. In addition, the use of multi-projector techniques in large-scale visualization, virtual reality, computer graphics, and vision applications is discussed. Contents......Page 6 Foreword......Page 8 1. Introduction......Page 13 1.1 Life-Size High-Resolution Displays......Page 15 1.2 Building Large Tiled Displays......Page 16 1.3 State of the Art......Page 20 1.4 Focus and Organization......Page 23 2.1 Evaluating Projector Characteristics......Page 25 2.2 Core Projection Technologies......Page 28 2.3 Associated Optical Elements......Page 33 2.4 Projection Architectures......Page 39 2.5 Comparison of Different Projection Technologies......Page 42 2.6 Multi-Projector Displays......Page 44 2.7 Summary......Page 54 3. Geometric Alignment......Page 55 3.1 Nature of the Display Surfaces......Page 56 3.2 Geometric Registration Techniques......Page 61 3.3 Implementation Details......Page 77 3.4 Discussion......Page 85 3.5 Summary......Page 88 4.1 Background......Page 89 4.2 Color Variation in Multi-Projector Displays......Page 95 4.3 Modeling Color Variation......Page 115 4.4 Color-Calibration Methods......Page 127 4.5 Summary......Page 162 5. PC-Cluster Rendering for Large-Scale Displays......Page 165 5.1 Rendering Imagery for Multi-Projector Displays......Page 166 5.2 Distributed Rendering using Chromium......Page 168 5.3 Seamless Tiled Displays using Chromium......Page 171 5.4 Implementing Various Corrections in OpenGL......Page 177 5.5 Demonstrations......Page 181 5.7 Summary......Page 186 6. Advanced Distributed Calibration......Page 189 6.1 System Overview......Page 191 6.2 Asynchronous Distributed Calibration......Page 195 6.3 Advanced Features......Page 207 6.4 Conclusion......Page 210 A.1 Color......Page 213 A.2 Measuring Color......Page 215 B.1 Stimulus and Response......Page 227 B.2 The Human Visual System......Page 228 B.3 Visual Limitations and Capabilities......Page 230 B.4 Relationship to Tiled Displays......Page 233 C. Camera Lens-Distortion Correction......Page 237 Bibliography......Page 241 A K Peters Contents 6 Foreword 8 1. Introduction 13 1.1 Life-Size High-Resolution Displays 15 1.2 Building Large Tiled Displays 16 1.3 State of the Art 20 1.4 Focus and Organization 23 2. Elements of Projection-Based Displays 25 2.1 Evaluating Projector Characteristics 25 2.2 Core Projection Technologies 28 2.3 Associated Optical Elements 33 2.4 Projection Architectures 39 2.5 Comparison of Different Projection Technologies 42 2.6 Multi-Projector Displays 44 2.7 Summary 54 3. Geometric Alignment 55 3.1 Nature of the Display Surfaces 56 3.2 Geometric Registration Techniques 61 3.3 Implementation Details 77 3.4 Discussion 85 3.5 Summary 88 4. Color Seamlessness 89 4.1 Background 89 4.2 Color Variation in Multi-Projector Displays 95 4.3 Modeling Color Variation 115 4.4 Color-Calibration Methods 127 4.5 Summary 162 5. PC-Cluster Rendering for Large-Scale Displays 165 5.1 Rendering Imagery for Multi-Projector Displays 166 5.2 Distributed Rendering using Chromium 168 5.3 Seamless Tiled Displays using Chromium 171 5.4 Implementing Various Corrections in OpenGL 177 5.5 Demonstrations 181 5.6 More Flexible Support of Tiles in Chromium 186 5.7 Summary 186 6. Advanced Distributed Calibration 189 6.1 System Overview 191 6.2 Asynchronous Distributed Calibration 195 6.3 Advanced Features 207 6.4 Conclusion 210 A. Color and Measurement 213 A.1 Color 213 A.2 Measuring Color 215 B. Perception 227 B.1 Stimulus and Response 227 B.2 The Human Visual System 228 B.3 Visual Limitations and Capabilities 230 B.4 Relationship to Tiled Displays 233 C. Camera Lens-Distortion Correction 237 Bibliography 241 9781568813103
practical Multi-projector Display Design Is The First Book That Provides You With All Of The Tools And Techniques You Need To Create Your Own Large-area Multi-projector Display That Is Both Affordable And Flexible. It Covers The Current Projection Technologies, Techniques For Achieving Geometric Alignment And Color Seamlessness, And Image Rendering Using Pc Clusters. It Also Gives The Details Of An Advanced Camera-based Calibration System.
