Investigation Of Correlating Tof Camera Systems
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Experimental And Theoretical Investigation Of Correlating Tof Camera Systems
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Author :
language : en
Publisher:
Release Date : 2007
Experimental And Theoretical Investigation Of Correlating Tof Camera Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
This thesis investigates Time-of-Flight (TOF) 3D imaging systems. A mathematical model is developed to predict the systematic errors and statistical uncertainties of such cameras. In order to determine the errors experimentally and to test the model, a custom experimental setup has been built for this work. Chapter 2 provides a detailed discussion of this experimental setup. Three camera systems are investigated experimentally: the PMD[vision] 19k, the SwissRanger SR-3000) and the Effector O3D. All cameras have a maximum measurement range of 7.5 m. This thesis discusses the experiments, the results and the implication of this tests and concludes with a critical discussion of the results. Possible ways to correct the revealed systematic errors is presented in the discussion. This work reveals three common systematic errors: the variation due to the anharmonic LED modulation provokes a periodic depth error of around 80-200 mm (depending on camera), the inhomogeneity of the pixels accounts for around 20 mm and the constant offset depending on the integration time was found to vary between 35-100 mm. The statistical variances at 30% of the maximum amplitude was found to be between 9 mm and 23 mm. Moreover, a technique to detect and remove overexposed pixels whenever possible is presented. With the proposed calibration, the absolute systematic error could be reduced in a sample calibration for the SwissRanger SR-3000 from maximal 300 mm (standard deviation: 40.81 mm) to below 16 mm (standard deviation: 3.16 mm) for all well exposed pixels. This work has been done within the framework of the Lynkeus-3D project (http://www.lynkeus-3d.de) supported by the BMBF (Bundesministerium für Bildung und Forschung) and in close cooperation with industry partners. The investigations of this work led to the detection and the mending of a construction error in one of the camera systems.
Investigation Of Correlating Tof Camera Systems
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Author : Holger Rapp
language : de
Publisher: VDM Publishing
Release Date : 2008
Investigation Of Correlating Tof Camera Systems written by Holger Rapp and has been published by VDM Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Photography categories.
Correlating Time-of-Flight (TOF) camera systems provide a novel approach to indirect range measurement. These systems pack the accuracy of common one-point TOF range measurements inside each pixel of a digital video camera. The user therefore receives a complete depth map of the acquired scene. Simultaneously, the system provides a grayscale image of the scene thus delivering also the common data received from every 2D grayscale camera. Today, at least two different technical realisations of the measurement principle are available as prototype camera systems, though the problems - especially the core principal's systematic errors are yet to be completely understood and described. This book is the first of its kind, providing the user with solutions to problems that are likely to arise in real life applications. The measurement principle including its underlying model is discussed and an error analysis of the model is provided. A practical kick-start guide allows the user to quickly acquire acceptable range data from their TOF camera system.
Experimental And Theoretical Investigation Of Correlating Tof Camera Systems
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Author : Holger Rapp
language : en
Publisher:
Release Date : 2007
Experimental And Theoretical Investigation Of Correlating Tof Camera Systems written by Holger Rapp and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Dynamic 3d Imaging
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Author : Andreas Kolb
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-28
Dynamic 3d Imaging written by Andreas Kolb and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-28 with Computers categories.
This book constitutes the refereed proceedings of the Dynamic 3D Imaging Workshop, Dyn3D 2009, held in Jena, Germany as an associated event of DAGM 2009, the main international conference of the "Deutsche Arbeitsgemeinschaft für Mustererkennung". The 13 revised full papers presented were carefully reviewed and selected for inclusion in the book. The papers cover a range of topics of current interest: fundamentals of ToF- sensors, algorithms and data fusion and applications of dynamic 3D scene analysis. This book is aimed at researchers interested in novel approaches in the field of real-time range imaging.
Time Of Flight And Depth Imaging Sensors Algorithms And Applications
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Author : Marcin Grzegorzek
language : en
Publisher: Springer
Release Date : 2013-11-09
Time Of Flight And Depth Imaging Sensors Algorithms And Applications written by Marcin Grzegorzek and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-09 with Computers categories.
Cameras for 3D depth imaging, using either time-of-flight (ToF) or structured light sensors, have received a lot of attention recently and have been improved considerably over the last few years. The present techniques make full-range 3D data available at video frame rates, and thus pave the way for a much broader application of 3D vision systems. A series of workshops have closely followed the developments within ToF imaging over the years. Today, depth imaging workshops can be found at every major computer vision conference. The papers presented in this volume stem from a seminar on Time-of-Flight Imaging held at Schloss Dagstuhl in October 2012. They cover all aspects of ToF depth imaging, from sensors and basic foundations, to algorithms for low level processing, to important applications that exploit depth imaging. In addition, this book contains the proceedings of a workshop on Imaging New Modalities, which was held at the German Conference on Pattern Recognition in Saarbrücken, Germany, in September 2013. A state-of-the-art report on the Kinect sensor and its applications is followed by two reports on local and global ToF motion compensation and a novel depth capture system using a plenoptic multi-lens multi-focus camera sensor.
A Survey On 3d Cameras Metrological Comparison Of Time Of Flight Structured Light And Active Stereoscopy Technologies
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Author : Silvio Giancola
language : en
Publisher: Springer
Release Date : 2018-06-19
A Survey On 3d Cameras Metrological Comparison Of Time Of Flight Structured Light And Active Stereoscopy Technologies written by Silvio Giancola and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-19 with Computers categories.
This book is a valuable resource to deeply understand the technology used in 3D cameras. In this book, the authors summarize and compare the specifications of the main 3D cameras available in the mass market. The authors present a deep metrological analysis of the main camera based on the three main technologies: Time-of-Flight, Structured-Light and Active Stereoscopy, and provide qualitative results for any user to understand the underlying technology within 3D camera, as well as practical guidance on how to get the most of them for a given application.
Reconstruction Of Specular Reflective Surfaces Using Auto Calibrating Deflectometry
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Author : Holger H. Rapp
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-05-22
Reconstruction Of Specular Reflective Surfaces Using Auto Calibrating Deflectometry written by Holger H. Rapp and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-22 with Technology & Engineering categories.
This thesis discusses deflectometry as a reconstruction method for highly reflecting surfaces. It focuses on deflectometry alone and does not use other reconstruction techniques to supplement with additional data. It explains the measurement process and principle and provides a crash course into an efficient mathematical representation of the principles involved. Using this, it reformulates existing three-dimensional reconstructing methods, expands upon them and develops new ones.
Progress In Pattern Recognition Image Analysis Computer Vision And Applications
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Author : César San Martin
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-10-28
Progress In Pattern Recognition Image Analysis Computer Vision And Applications written by César San Martin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-28 with Computers categories.
This book constitutes the refereed proceedings of the 16th Iberoamerican Congress on Pattern Recognition, CIARP 2011, held in Pucón, Chile, in November 2011. The 81 revised full papers presented together with 3 keynotes were carefully reviewed and selected from numerous submissions. Topics of interest covered are image processing, restoration and segmentation; computer vision; clustering and artificial intelligence; pattern recognition and classification; applications of pattern recognition; and Chilean Workshop on Pattern Recognition.
Imaging Sensors And Technologies
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Author : Gonzalo Pajares Martinsanz
language : en
Publisher: MDPI
Release Date : 2018-07-06
Imaging Sensors And Technologies written by Gonzalo Pajares Martinsanz and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-06 with Science (General) categories.
This book is a printed edition of the Special Issue "Imaging: Sensors and Technologies" that was published in Sensors
3d Biometrics
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Author : David Zhang
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-05-31
3d Biometrics written by David Zhang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-31 with Computers categories.
Automatic personal authentication using biometric information is becoming more essential in applications of public security, access control, forensics, banking, etc. Many kinds of biometric authentication techniques have been developed based on different biometric characteristics. However, most of the physical biometric recognition techniques are based on two dimensional (2D) images, despite the fact that human characteristics are three dimensional (3D) surfaces. Recently, 3D techniques have been applied to biometric applications such as 3D face, 3D palmprint, 3D fingerprint, and 3D ear recognition. This book introduces four typical 3D imaging methods, and presents some case studies in the field of 3D biometrics. This book also includes many efficient 3D feature extraction, matching, and fusion algorithms. These 3D imaging methods and their applications are given as follows: - Single view imaging with line structured-light: 3D ear identification - Single view imaging with multi-line structured-light: 3D palmprint authentication - Single view imaging using only 3D camera: 3D hand verification - Multi-view imaging: 3D fingerprint recognition 3D Biometrics: Systems and Applications is a comprehensive introduction to both theoretical issues and practical implementation in 3D biometric authentication. It will serve as a textbook or as a useful reference for graduate students and researchers in the fields of computer science, electrical engineering, systems science, and information technology. Researchers and practitioners in industry and R&D laboratories working on security system design, biometrics, immigration, law enforcement, control, and pattern recognition will also find much of interest in this book.