Adaptive Audio and Video Processing for Electronic Chalkboard Lectures

摘要: Title i Acknowledgements iii Table of Contents v 1. Introduction 1 2. Automated Lecture Recording 5 3. The E-Chalk System 21 4. Server Architecture 29 5. Client 51 6. Audio Storage and Transmission 67 7. Active 77 8. Video 91 9. Merging Blackboard 97 10. Generalizing the Instructor Extraction 119 11. Hardware-Supported 143 12. Conclusion 151 A E-Chalk: Project Overview 155 B SOPA: Technical Details 161 C Board-Event Encoding 165 D E-Chalk's Format 169 E Tools 171 F 175 G SIOX Benchmark Results 179 Bibliography 189 Web References 207 List Figures 213 Anhang gemas Promotionsordnung 217