Mobile laser scanning based determination of railway network topology and branching direction on turnouts

Mobile laser scanning based determination of railway network topology and branching direction on turnouts PDF Author: Stein, Denis
Publisher: KIT Scientific Publishing
ISBN: 3731507439
Category : Technology (General)
Languages : en
Pages : 168

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Book Description
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.

Mobile laser scanning based determination of railway network topology and branching direction on turnouts

Mobile laser scanning based determination of railway network topology and branching direction on turnouts PDF Author: Stein, Denis
Publisher: KIT Scientific Publishing
ISBN: 3731507439
Category : Technology (General)
Languages : en
Pages : 168

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Book Description
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.

Mobile Laser Scanning Based Determination of Railway Network Topology and Branching Direction on Turnouts

Mobile Laser Scanning Based Determination of Railway Network Topology and Branching Direction on Turnouts PDF Author: Denis Stein
Publisher:
ISBN: 9781013279188
Category : Transportation
Languages : en
Pages : 156

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Book Description
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. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

China Satellite Navigation Conference (CSNC 2021) Proceedings

China Satellite Navigation Conference (CSNC 2021) Proceedings PDF Author: Changfeng Yang
Publisher: Springer Nature
ISBN: 9811631425
Category : Technology & Engineering
Languages : en
Pages : 703

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Book Description
China Satellite Navigation Conference (CSNC 2021) Proceedings presents selected research papers from CSNC 2021 held during 22nd-25th May, 2021 in Nanchang, China. These papers discuss the technologies and applications of the Global Navigation Satellite System (GNSS), and the latest progress made in the China BeiDou System (BDS) especially. They are divided into 10 topics to match the corresponding sessions in CSNC2021 which broadly covered key topics in GNSS. Readers can learn about the BDS and keep abreast of the latest advances in GNSS techniques and applications.

Lane-Precise Localization with Production Vehicle Sensors and Application to Augmented Reality Navigation

Lane-Precise Localization with Production Vehicle Sensors and Application to Augmented Reality Navigation PDF Author: Rabe, Johannes
Publisher: KIT Scientific Publishing
ISBN: 3731508540
Category : Augmented reality
Languages : en
Pages : 196

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Book Description
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.

Integrated Planning and Control for Collision Avoidance Systems

Integrated Planning and Control for Collision Avoidance Systems PDF Author: Yi, Boliang
Publisher: KIT Scientific Publishing
ISBN: 3731507854
Category : Planning
Languages : en
Pages : 174

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Book Description
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.

Compact Environment Modelling from Unconstrained Camera Platforms

Compact Environment Modelling from Unconstrained Camera Platforms PDF Author: Schwarze, Tobias
Publisher: KIT Scientific Publishing
ISBN: 373150801X
Category : Cameras
Languages : en
Pages : 158

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Book Description
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.

Self-Calibration of Multi-Camera Systems for Vehicle Surround Sensing

Self-Calibration of Multi-Camera Systems for Vehicle Surround Sensing PDF Author: Knorr, Moritz
Publisher: KIT Scientific Publishing
ISBN: 373150765X
Category : Calibration
Languages : en
Pages : 166

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Book Description
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.

Probabilistic Motion Planning for Automated Vehicles

Probabilistic Motion Planning for Automated Vehicles PDF Author: Naumann, Maximilian
Publisher: KIT Scientific Publishing
ISBN: 3731510707
Category : Technology & Engineering
Languages : en
Pages : 192

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Book Description
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.

Motion Planning for Autonomous Vehicles in Partially Observable Environments

Motion Planning for Autonomous Vehicles in Partially Observable Environments PDF Author: Taş, Ömer Şahin
Publisher: KIT Scientific Publishing
ISBN: 3731512998
Category :
Languages : en
Pages : 222

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Book Description
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.

Belief State Planning for Autonomous Driving: Planning with Interaction, Uncertain Prediction and Uncertain Perception

Belief State Planning for Autonomous Driving: Planning with Interaction, Uncertain Prediction and Uncertain Perception PDF Author: Hubmann, Constantin
Publisher: KIT Scientific Publishing
ISBN: 3731510391
Category : Technology & Engineering
Languages : en
Pages : 178

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Book Description
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.