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Mapping and Planning for Autonomous Vehicles in Dynamic Urban Settings- [electronic resource]
Mapping and Planning for Autonomous Vehicles in Dynamic Urban Settings - [electronic resou...
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Mapping and Planning for Autonomous Vehicles in Dynamic Urban Settings- [electronic resource]
자료유형  
 학위논문파일 국외
최종처리일시  
20240214101656
ISBN  
9798380576970
DDC  
629.8
저자명  
Paz Ruiz, David.
서명/저자  
Mapping and Planning for Autonomous Vehicles in Dynamic Urban Settings - [electronic resource]
발행사항  
[S.l.]: : University of California, San Diego., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(101 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-04, Section: B.
주기사항  
Advisor: Christensen, Henrik I.
학위논문주기  
Thesis (Ph.D.)--University of California, San Diego, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약In highly dynamic urban environments, software stacks for autonomous driving applications must quickly adapt to fast changing environments. Examples of dynamic scenarios include construction sites, road closures, and lane level updates. Failure to adapt to changes in map definitions can result in catastrophic failures in the system that can lead to accidents or, at best, rule violations in shared public roads. This work focuses on identifying strategies that leverage automatically generated map representations to minimize human-in-the-loop efforts and explores methods for integrating nominal planners in the global planning task. The first part of this dissertation covers multi-class semantic mapping for large scale urban driving applications. As part of this framework, sensor fusion based strategies are applied to provide robust depth and semantic estimates from the scene without making strong assumptions about the road topology. Secondly, rasterized and graphical representations are jointly leveraged to formulate a nominal global planning approach for lane-level navigation. This method utilizes the semantic maps introduced and employs a conditional generative model to explicitly model the multi-modal distribution of trajectories that are feasible when driving in an urban setting. We additionally provide details from real-world testing and the open-source data collected from the UC San Diego campus during 2020-2021. In the last chapter, 2D and 3D centerline prediction methods are introduced to reduce the gap in real-time scene understanding. This contribution outlines an automatic label generation process and additionally leverages an occlusion handling approach to reason about centerline prediction with varying degrees of occlusion. The methods proposed achieve robust performance in diverse driving scenarios with promising directions in autonomous driving architectures.
일반주제명  
Robotics.
일반주제명  
Computer science.
키워드  
Autonomous driving
키워드  
Computer vision
키워드  
Generative models
키워드  
Machine learning
키워드  
Planning
키워드  
Semantic scene understanding
기타저자  
University of California, San Diego Computer Science and Engineering
기본자료저록  
Dissertations Abstracts International. 85-04B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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