Cited by 42Robotics and Sensor-Based LocalizationAdvanced Vision and ImagingAutonomous Vehicle Technology and Safety

Towards visual ego-motion learning in robots

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Pillai, Sudeep, Leonard, John J.·2017·2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

Abstract

Many model-based Visual Odometry (VO) algorithms have been proposed in the past decade, often restricted to the type of camera optics, or the underlying motion manifold observed. We envision robots to be able to learn and perform these tasks, in a minimally supervised setting, as they gain more experience. To this end, we propose a fully trainable solution to visual ego-motion estimation for varied camera optics. We propose a visual ego-motion learning architecture that maps observed optical flow vectors to an ego-motion density estimate via a Mixture Density Network (MDN). By modeling the architecture as a Conditional Variational Autoencoder (C-VAE), our model is able to provide introspective reasoning and prediction for ego-motion induced scene-flow. Additionally, our proposed model is especially amenable to bootstrapped ego-motion learning in robots where the supervision in ego-motion estimation for a particular camera sensor can be obtained from standard navigation-based sensor fusion strategies (GPS/INS and wheel-odometry fusion). Through experiments, we show the utility of our proposed approach in enabling the concept of self-supervised learning for visual ego-motion estimation in autonomous robots.

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  • The online error correction modules increase VIO robustness to spatial misalignments between camera and IMU that affect state-of-the-art traditional VIO methods.

    “Additionally, we show how the OEC modules provide increased VIO robustness against spatial misalignments between a camera and IMU that plague SoA traditional approaches to VIO [3], [4], [5].”

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Research works printed but not linked: 1

  1. Ronald Clark, Sen Wang, Hongkai Wen, Andrew Markham, and Niki Trigoni. VINet: Visual-Inertial odometry as a sequence-to-sequence learning problem. AAAI, 2016. 2

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Authors
Pillai, S., & Leonard, J. J.
Affiliations
MIT Computer Science and Artificial Intelligence Laboratory (US)
Venue
2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
Publisher
IEEE
Published
2017-09
Pages
5533-5540
ISSN
2153-0858 (ISSN-L)
OpenAlex
W2620334791
Cited by
42
References
28
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 4 · 2022: 5 · 2021: 6 · 2020: 4 · 2019: 12 · 2018: 7
FWCI
11.01
Type
conference paper
Language
en
Open access
Locations
  • IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Engineering › Aerospace Engineering › Robotics and Sensor-Based Localization
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Vision and Imaging
  • Physical Sciences › Engineering › Automotive Engineering › Autonomous Vehicle Technology and Safety
Keywords
visual odometry, mixture density networks, conditional variational autoencoder, optical flow, scene flow, self-supervised learning, robot learning, wheel odometry, camera optics

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