Download or read book Reconstruction of Specular Reflective Surfaces Using Auto Calibrating Deflectometry written by Holger H. Rapp and published by KIT Scientific Publishing. This book was released on 2014-05-22 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dynamic Deformation Damage and Fracture in Composite Materials and Structures written by Vadim Silberschmidt and published by Woodhead Publishing. This book was released on 2016-01-23 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials, with their higher exposure to dynamic loads, have increasingly been used in aerospace, naval, automotive, sports and other sectors over the last few decades. Dynamic Deformation, Damage and Fracture in Composite Materials and Structures reviews various aspects of dynamic deformation, damage and fracture, mostly in composite laminates and sandwich structures, in a broad range of application fields including aerospace, automotive, defense and sports engineering. As the mechanical behavior and performance of composites varies under different dynamic loading regimes and velocities, the book is divided into sections that examine the different loading regimes and velocities. Part one examine low-velocity loading and part two looks at high-velocity loading. Part three then assesses shock and blast (i.e. contactless) events and the final part focuses on impact (contact) events. As sports applications of composites are linked to a specific subset of dynamic loading regimes, these applications are reviewed in the final part. - Examines dynamic deformation and fracture of composite materials - Covers experimental, analytical and numerical aspects - Addresses important application areas such as aerospace, automotive, wind energy and defence, with a special section on sport applications
Download or read book Self Calibration of Multi Camera Systems for Vehicle Surround Sensing written by Knorr, Moritz and published by KIT Scientific Publishing. This book was released on 2018-12-19 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-camera systems are being deployed in a variety of vehicles and mobile robots today. To eliminate the need for cost and labor intensive maintenance and calibration, continuous self-calibration is highly desirable. In this book we present such an approach for self-calibration of multi-Camera systems for vehicle surround sensing. In an extensive evaluation we assess our algorithm quantitatively using real-world data.
Download or read book Modern Ophthalmic Optics written by José Alonso and published by Cambridge University Press. This book was released on 2019-04-11 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive account of the most recent developments in modern ophthalmic optics. It makes use of the powerful matrix formalism to describe curvature and power, providing a unified view of the optical and geometrical properties of lenses. This unified approach is applicable to the design and properties of not only spectacle lenses, but also contact and intraocular lenses (IOL). The newest developments in lens design, manufacturing and testing are discussed, with an emphasis on the description of free-form technology, which has surpassed traditional manufacturing methods and allows digital lenses to be specifically designed with the unique requirements of the user. Other important topics which are covered include modern lens materials, up-to-date lens measuring techniques, contact and intraocular lenses, progressive power lenses, low vision aids, ocular protection and coatings. Providing a broad overview of recent developments in the field, it is ideal for researchers, manufacturers and practitioners involved in ophthalmic optics.
Download or read book Mapping and Localization in Urban Environments Using Cameras written by Henning Lategahn and published by KIT Scientific Publishing. This book was released on 2014 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work we present a system to fully automatically create a highly accurate visual feature map from image data acquired from within a moving vehicle. Moreover, a system for high precision self localization is presented. Furthermore, we present a method to automatically learn a visual descriptor. The map relative self localization is centimeter accurate and allows autonomous driving.
Download or read book Lane Precise Localization with Production Vehicle Sensors and Application to Augmented Reality Navigation written by Rabe, Johannes and published by KIT Scientific Publishing. This book was released on 2019-01-10 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This works describes an approach to lane-precise localization on current digital maps. A particle filter fuses data from production vehicle sensors, such as GPS, radar, and camera. Performance evaluations on more than 200 km of data show that the proposed algorithm can reliably determine the current lane. Furthermore, a possible architecture for an intuitive route guidance system based on Augmented Reality is proposed together with a lane-change recommendation for unclear situations.
Download or read book Probabilistic Models for 3D Urban Scene Understanding from Movable Platforms written by Andreas Geiger and published by KIT Scientific Publishing. This book was released on 2014-07-29 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is a contribution to understanding multi-object traffic scenes from video sequences. All data is provided by a camera system which is mounted on top of the autonomous driving platform AnnieWAY. The proposed probabilistic generative model reasons jointly about the 3D scene layout as well as the 3D location and orientation of objects in the scene. In particular, the scene topology, geometry as well as traffic activities are inferred from short video sequences.
Download or read book Interlacing Self Localization Moving Object Tracking and Mapping for 3D Range Sensors written by Frank Moosmann and published by KIT Scientific Publishing. This book was released on 2014-05-13 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a solution for autonomous vehicles to detect arbitrary moving traffic participants and to precisely determine the motion of the vehicle. The solution is based on three-dimensional images captured with modern range sensors like e.g. high-resolution laser scanners. As result, objects are tracked and a detailed 3D model is built for each object and for the static environment. The performance is demonstrated in challenging urban environments that contain many different objects.
Download or read book Belief State Planning for Autonomous Driving Planning with Interaction Uncertain Prediction and Uncertain Perception written by Hubmann, Constantin and published by KIT Scientific Publishing. This book was released on 2021-09-13 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a behavior planning algorithm for automated driving in urban environments with an uncertain and dynamic nature. The algorithm allows to consider the prediction uncertainty (e.g. different intentions), perception uncertainty (e.g. occlusions) as well as the uncertain interactive behavior of the other agents explicitly. Simulating the most likely future scenarios allows to find an optimal policy online that enables non-conservative planning under uncertainty.
Download or read book Probabilistic Motion Planning for Automated Vehicles written by Naumann, Maximilian and published by KIT Scientific Publishing. This book was released on 2021-02-25 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: In motion planning for automated vehicles, a thorough uncertainty consideration is crucial to facilitate safe and convenient driving behavior. This work presents three motion planning approaches which are targeted towards the predominant uncertainties in different scenarios, along with an extended safety verification framework. The approaches consider uncertainties from imperfect perception, occlusions and limited sensor range, and also those in the behavior of other traffic participants.
Download or read book Motion Planning for Autonomous Vehicles in Partially Observable Environments written by Taş, Ömer Şahin and published by KIT Scientific Publishing. This book was released on 2023-10-23 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work develops a motion planner that compensates the deficiencies from perception modules by exploiting the reaction capabilities of a vehicle. The work analyzes present uncertainties and defines driving objectives together with constraints that ensure safety. The resulting problem is solved in real-time, in two distinct ways: first, with nonlinear optimization, and secondly, by framing it as a partially observable Markov decision process and approximating the solution with sampling.
Download or read book Integrated Planning and Control for Collision Avoidance Systems written by Yi, Boliang and published by KIT Scientific Publishing. This book was released on 2018-08-29 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collision avoidance systems like emergency braking assist systems have demonstrated their effectiveness in increasing the safety of vehicle passengers in various studies. To further increase the effectiveness of collision avoidance systems, the exploitation of the lateral free space by evasive maneuvers is being investigated in this book. This work focuses on methods for integrated trajectory planning and vehicle dynamics control in collision avoidance scenarios by combined evasion and braking.
Download or read book Omnidirectional Stereo Vision for Autonomous Vehicles written by Schoenbein, Miriam and published by KIT Scientific Publishing. This book was released on 2015-04-22 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment perception with cameras is an important requirement for many applications for autonomous vehicles and robots. This work presents a stereoscopic omnidirectional camera system for autonomous vehicles which resolves the problem of a limited field of view and provides a 360° panoramic view of the environment. We present a new projection model for these cameras and show that the camera setup overcomes major drawbacks of traditional perspective cameras in many applications.
Download or read book Probabilistic Maneuver Recognition in Traffic Scenarios written by Firl, Jonas and published by KIT Scientific Publishing. This book was released on 2015-01-07 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work an approach is presented to model and recognize traffic maneuvers in terms of interactions between different traffic participants on extra urban roads. Results of the recognition concept are presented and evaluated using different sensor setups and its benefit is outlined by an integration into a software framework in the field of Car-to-Car (C2C) communications. Furthermore, recognition results are used in this work to robustly predict vehicle's trajectories while driving dynamic.
Download or read book Novel Aggregated Solutions for Robust Visual Tracking in Traf c Scenarios written by Tian, Wei and published by KIT Scientific Publishing. This book was released on 2019-05-21 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work proposes novel approaches for object tracking in challenging scenarios like severe occlusion, deteriorated vision and long range multi-object reidenti?cation. All these solutions are only based on image sequence captured by a monocular camera and do not require additional sensors. Experiments on standard benchmarks demonstrate an improved state-of-the-art performance of these approaches. Since all the presented approaches are smartly designed, they can run at a real-time speed.
Download or read book Mobile laser scanning based determination of railway network topology and branching direction on turnouts written by Stein, Denis and published by KIT Scientific Publishing. This book was released on 2018-06-26 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: GNSS is often inaccurate and satellite signals are not always available, which results in ambiguous situations. In order to reduce their negative effects on train-borne localization, this work proposes an approach for the detection of tracks, turnouts, and branching directions solely from 2d lidar sensor measurements. The experimental evaluation shows highly correct and complete results. In summary, these detections are sufficient to reduce ambiguity problems in train-borne localization.
Download or read book Compact Environment Modelling from Unconstrained Camera Platforms written by Schwarze, Tobias and published by KIT Scientific Publishing. This book was released on 2018-09-25 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile robotic systems need to perceive their surroundings in order to act independently. In this work a perception framework is developed which interprets the data of a binocular camera in order to transform it into a compact, expressive model of the environment. This model enables a mobile system to move in a targeted way and interact with its surroundings. It is shown how the developed methods also provide a solid basis for technical assistive aids for visually impaired people.
