Material recognition CNNs and hierarchical planning for biped robot locomotion on slippery terrain

Martim Brandão, Yukitoshi Minami Shiguematsu, Kenji Hashimoto, Atsuo Takanishi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    22 Citations (Scopus)

    Abstract

    In this paper we tackle the problem of visually predicting surface friction for environments with diverse surfaces, and integrating this knowledge into biped robot locomotion planning. The problem is essential for autonomous robot locomotion since diverse surfaces with varying friction abound in the real world, from wood to ceramic tiles, grass or ice, which may cause difficulties or huge energy costs for robot locomotion if not considered. We propose to estimate friction and its uncertainty from visual estimation of material classes using convolutional neural networks, together with probability distribution functions of friction associated with each material. We then robustly integrate the friction predictions into a hierarchical (footstep and full-body) planning method using chance constraints, and optimize the same trajectory costs at both levels of the planning method for consistency. Our solution achieves fully autonomous perception and locomotion on slippery terrain, which considers not only friction and its uncertainty, but also collision, stability and trajectory cost. We show promising friction prediction results in real pictures of outdoor scenarios, and planning experiments on a real robot facing surfaces with different friction.

    Original languageEnglish
    Title of host publicationHumanoids 2016 - IEEE-RAS International Conference on Humanoid Robots
    PublisherIEEE Computer Society
    Pages81-88
    Number of pages8
    ISBN (Electronic)9781509047185
    DOIs
    Publication statusPublished - 2016 Dec 30
    Event16th IEEE-RAS International Conference on Humanoid Robots, Humanoids 2016 - Cancun, Mexico
    Duration: 2016 Nov 152016 Nov 17

    Other

    Other16th IEEE-RAS International Conference on Humanoid Robots, Humanoids 2016
    CountryMexico
    CityCancun
    Period16/11/1516/11/17

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Vision and Pattern Recognition
    • Hardware and Architecture
    • Human-Computer Interaction
    • Electrical and Electronic Engineering

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  • Cite this

    Brandão, M., Shiguematsu, Y. M., Hashimoto, K., & Takanishi, A. (2016). Material recognition CNNs and hierarchical planning for biped robot locomotion on slippery terrain. In Humanoids 2016 - IEEE-RAS International Conference on Humanoid Robots (pp. 81-88). [7803258] IEEE Computer Society. https://doi.org/10.1109/HUMANOIDS.2016.7803258