Cited by 225Robotics and Sensor-Based LocalizationAutonomous Vehicle Technology and SafetyReinforcement Learning in Robotics

Experience-based navigation for long-term localisation

Churchill, Winston, Newman, Paul·2013·The International Journal of Robotics Research

Abstract

This paper is about long-term navigation in environments whose appearance changes over time, suddenly or gradually. We describe, implement and validate an approach which allows us to incrementally learn a model whose complexity varies naturally in accordance with variation of scene appearance. It allows us to leverage the state of the art in pose estimation to build over many runs, a world model of sufficient richness to allow simple localisation despite a large variation in conditions. As our robot repeatedly traverses its workspace, it accumulates distinct visual experiences that in concert, implicitly represent the scene variation: each experience captures a visual mode. When operating in a previously visited area, we continually try to localise in these previous experiences while simultaneously running an independent vision-based pose estimation system. Failure to localise in a sufficient number of prior experiences indicates an insufficient model of the workspace and instigates the laying down of the live image sequence as a new distinct experience. In this way, over time we can capture the typical time-varying appearance of an environment and the number of experiences required tends to a constant. Although we focus on vision as a primary sensor throughout, the ideas we present here are equally applicable to other sensor modalities. We demonstrate our approach working on a road vehicle operating over a 3-month period at different times of day, in different weather and lighting conditions. We present extensive results analysing different aspects of the system and approach, in total processing over 136,000 frames captured from 37 km of driving.

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  • New methods have been developed to account for illumination variations by matching sequences, gathering different visual appearances into a unified representation, or using spatial and appearance information.

    “This has led to develop new methods that explicitly account for such variations by matching sequences [173], gathering different visual appearances into a unified representation [48], or using spatial as well as appearance information [106].”

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Authors
Churchill, W., & Newman, P.
Affiliations
University of Oxford (GB)
Venue
The International Journal of Robotics Research
Published
2013-09-16
Volume
32
Issue
14
Pages
1645-1661
ISSN
  • 0278-3649 (ISSN-L)
  • 1741-3176
OpenAlex
W2003919215
Cited by
225
References
23
Citations by year
2026: 4 · 2025: 10 · 2024: 4 · 2023: 15 · 2022: 22 · 2021: 24 · 2020: 23 · 2019: 33 · 2018: 20 · 2017: 17 · 2016: 27 · 2015: 24 · 2014: 2
FWCI
28.42
Type
journal article
Language
en
Open access
closed
Locations
The International Journal of Robotics Research (publishedVersion)
Funders
Engineering and Physical Sciences Research Council (EP/J012017/1, EP/I005021/1)
Topics
  • Physical Sciences › Engineering › Aerospace Engineering › Robotics and Sensor-Based Localization
  • Physical Sciences › Engineering › Automotive Engineering › Autonomous Vehicle Technology and Safety
  • Physical Sciences › Computer Science › Artificial Intelligence › Reinforcement Learning in Robotics
Keywords
visual odometry, pose estimation, world model learning, time-varying environments, incremental learning

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