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The main focus of this work is the development of new methods for the self-calibration of a rigid stereo camera system. However, many of the algorithms introduced here have a wider impact, particularly in robot hand-eye calibration with all its different areas of application. Stereo self-calibration refers to the computation of the intrinsic and extrinsic parameters of a stereo rig using neither a priori knowledge on the movement of the rig nor on the geometry of the observed scene.
The stereo parameters obtained by self-calibration, namely rotation and translation from left to right camera, are used for computing depth maps for both images, which are applied for rendering correctly occluded virtual objects into a real scene (Augmented Reality).
The proposed methods were evaluated on real and synthetic data and compared to algorithms from the literature. In addition to a stereo rig, an optical tracking system with a camera mounted on an endoscope was calibrated without a calibration pattern using the proposed extended hand-eye calibration algorithm.
The self-calibration methods developed in this work have a number of features, which make them easily applicable in practice: They rely on temporal feature tracking only, as this monocular tracking in a continuous image sequence is much easier than left-to-right tracking when the camera parameters are still unknown.
Intrinsic and extrinsic camera parameters are computed during the self-calibration process, i.e., no calibration pattern is required. The proposed stereo self-calibration approach can also be used for extended hand-eye calibration, where the eye poses are obtained by structure-from-motion rather than from a calibration pattern.
An inherent problem to hand-eye calibration is that it requires at least two general movements of the cameras in order to compute the rigid transformation.
If the motion is not general enough, only a part of the parameters can be obtained, which would not be sufficient for computing depth maps. Therefore, a main part of this work discusses methods for data selection that increase the robustness of hand-eye calibration. Different new approaches are shown, the most successful ones being based on vector quantization.
The data selection algorithms developed in this work can not only be used for stereo self-calibration, but also for classic robot hand-eye calibration, and they are independent of the actually used hand-eye calibration algorithm.
Deploy and manage SQL Server 2005 with easeLearn to use all the powerful features available in SQL Server 2005 from this straightforward, hands-on guide.
Set up SQL Server 2005, automate system administration tasks, execute simple and complex database queries, and use the robust analysis, business intelligence, and reporting tools. Troubleshooting, data partitioning, replication, and query optimization are also covered.
With SQL Server 2005: A Beginner's Guide, you'll be able to set up a secure, reliable, and productive data management platform in no time.
Essential Skills for Database Professionals
- Install and customize SQL Server 2005
- Create, alter, and remove database objects with Transact-SQL statements
- Use SQL Server as a native XML database system - Tune your database system for optimal performance
- Use the new SQL Server Management Studio tool for executing and analyzing ad hoc queries
- Retrieve data from more than one source using join operations and SELECT statements
- Secure your database using two different authentication modes--Windows and mixed
- Restore databases using transaction logs and backup and recovery methods
- Streamline system administration tasks using the SQL Server Agent service tool
- Analyze and manage information stored in a data warehouse with Microsoft Analysis Services
Get Started on Microsoft SQL Server 2008 in No TimeLearn to use all of the powerful features available in SQL Server 2008 quickly and easily.
Microsoft SQL Server 2008: A Beginner's Guide explains the fundamentals of each topic alongside examples and tutorials that walk you through real-world database tasks.
Install SQL Server 2008, construct high-performance databases, use powerful Transact-SQL statements, create stored procedures and triggers, and execute simple and complex database queries. Performance tuning, Database Engine security, Business Intelligence, and XML are also covered.
Set up, configure, and maintain SQL Server 2008
Build and manage database objects using Transact-SQL statements Create stored procedures and user-defined functionsOptimize database performance, availability, and reliability
Implement solid security using authentication, encryption, and authorization Automate tasks using SQL Server Agent
Create reliable data backups and perform flawless system restores
Use all-new SQL Server 2008 Business Intelligence, development, and administration toolsLearn in detail the SQL Server XML technology (SQLXML)
Get Started on Microsoft SQL Server 2012 in No TimeLearn to use all of the powerful features available in SQL Server 2012 quickly and easily.
Microsoft SQL Server 2012: A Beginner's Guide explains the fundamentals of each topic alongside examples and tutorials that walk you through real-world database tasks.
Install SQL Server 2012, construct high-performance databases, use powerful Transact-SQL statements, create stored procedures and triggers, and execute simple and complex database queries.
Performance tuning, Database Engine security, Business Intelligence, and XML are also covered.
Set up, configure, and maintain SQL Server 20012 Build and manage database objects using Transact-SQL statements Create stored procedures and user-defined functionsOptimize database performance, availability, and reliabilityImplement solid security using authentication, encryption, and authorization
Automate tasks using SQL Server AgentCreate reliable data backups and perform flawless system restoresUse all-new SQL Server 2012 Business Intelligence, development, and administration toolsLearn in detail the SQL Server XML technology (SQLXML)
Get up and running on Microsoft SQL Server 2016 in no time with help from this thoroughly revised, practical resource. The book offers thorough coverage of SQL management and development and features full details on the newest business intelligence, reporting, and security features.
Filled with new real-world examples and hands-on exercises, Microsoft SQL Server 2016: A Beginner's Guide, Sixth Edition, starts by explaining fundamental relational database system concepts.
From there, you will learn how to write Transact-SQL statements, execute simple and complex database queries, handle system administration and security, and use the powerful analysis and BI tools. XML, spatial data, and full-text search are also covered in this step-by-step tutorial.
· Revised from the ground up to cover the latest version of SQL Server
· Ideal both as a self-study guide and a classroom textbook
· Written by a prominent professor and best-selling author
C/C++ GE-PACKT
(2007)
Die Arbeit ist eine Anleitung zur Planung und Erstellung von IT-Systemen, die auch Filme, Sprache, Musik, Animationen und virtuelle Welten – also die gesamte Palette multimedialer Darstellungen – beinhalten. Solche Programme werden hauptsächlich in drei Bereichen eingesetzt: Im Spielebereich (z.B. Autorennen, Erlebnisspiele), im Aus- und Weiterbildungsbereich (z.B. multimediale Lernprogramme) und im Bereich von elektronisch unterstützten Informationssystemen (z.B. Präsentationen, Produktvorstellungen und Produktkataloge u.a. auch auf CD-ROM oder Kiosksysteme wie etwa Informationsterminals auf Messen u.ä.).
Die Arbeit beschäftigt sich vorwiegend mit Lernsystemen. Das Schwierige an der Verwendung multimedialer Darstellungen wie Film, Musik usw. ist, dass in die "trockene" Programmierung Aspekte wie Regie, Dramaturgie, psychologische und didaktische Aspekte einfließen. Daher ist die interdisziplinäre Sichtweise bei der Entwicklung multimedialer Systeme besonders wichtig. Die Arbeit betrachtet die Problematik also nicht techniklastig (obwohl natürlich die technischen Aspekte nicht außer Acht gelassen werden), sondern nutzerorientiert.
Die Arbeit ist für drei Bereiche bedeutend: erstens für den Bereich der Wissenschaft(stheorie), zweitens für den Aus- und Weiterbildungssektor und drittens für die Entwickler von multimedialen Systemen.
Aus der Sicht der Wissenschaft liefert die Arbeit eine klare Einteilung für multimediale Arbeitsbereiche. Mögliche künftige Forschungsbereiche werden aufgezeigt und begriffliche Unklarheiten offengelegt und ausgeräumt. Weiters wird die interdisziplinäre Bandbreite der Thematik geschildert und damit eine umfassende Darstellung der Problematik vorgenommen. In diesem Sinn kann die Arbeit fast als Lexikon gesehen werden.
Aus der Sicht des Aus- und Weiterbildungssektors dient diese Arbeit als Zusammenfassung bestehender Lernkonzepte, in der ein eigenständiger, einfacher Raster in Hinblick auf multimediale Systeme entwickelt wird. Dabei werden Erfahrungen aus mehreren multimedialen Programmen eingearbeitet, die vom Autor am Institut für Wirtschaftsinformatik (mit)entwickelt und evaluiert worden sind. Eine Erkenntnis ist, dass der Wissensstand des Benutzers auf dem Lerngebiet eine entscheidende Rolle spielt. Lernsysteme für Anfänger müssen anders gestaltet werden als für Fortgeschrittene. Das wie wird in der Arbeit beschrieben.
Aus der Sicht der Entwickler von multimedialen Systemen ist die Arbeit von Bedeutung, da sie die Unterschiede bei der Entwicklung im Vergleich zu traditionellen Programmen herausarbeitet und dafür eine Vorgangsweise anbietet. Die Vorgangsweise ist eine Art multimediales Drehbuch, das als Storyboard bezeichnet wird. In der Arbeit wird beschrieben wie die einzelnen dramaturgischen, didaktischen und psychologischen Aspekte in das Storyboard eingearbeitet werden und letztlich das System in einem entsprechenden Umfeld eingesetzt werden kann.
Create, query, and manage high-performance SQL Server 7 databases with the hot new release of this scalable database management system.
SQL Server 7: A Beginner's Guide explains enterprise database fundamentals and shows you how to take advantage of the new features of SQL Server 7, such as improved space management, new data transformation services, and data warehousing.
From installation to query optimization to security to data warehousing, this hands-on guide provides everything you need to know to get up and running smoothly on SQL Server 7.