ResearchResearch paperRobotics & Embodied AI1 source · Oct 7, 2026

TAPNAV: Humanoid Navigation through Tactile Active Perception

We present TAPNAV, a tactile active-perception framework that enables humanoid navigation toward a goal by actively probing surrounding structures without relying on vision.

Key points

  • Navigation in vision-denied environments is challenging for humanoid robots because proprioceptive odometry drifts and localization uncertainty accumulates rapidly.
  • TAPNAV maintains a pose belief from odometry, IMU, and tactile contact observations, and couples uncertainty-aware global route planning with information-gain-driven local probing.
  • The global planner searches for routes that keep predicted localization uncertainty bounded by exploiting opportunities for tactile correction, while the local planner selects probe actions that maximize expected information gain.
  • These results demonstrate that actively planning physical interactions with the environment can provide localization cues for reliable humanoid navigation without vision.

Sources (1)

  • [1]TAPNAV: Humanoid Navigation through Tactile Active Perception
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 7, 06:14 PM
    We present TAPNAV, a tactile active-perception framework that enables humanoid navigation toward a goal by actively probing surrounding structures without relying on vision.
    Navigation in vision-denied environments is challenging for humanoid robots because proprioceptive odometry drifts and localization uncertainty accumulates rapidly.

Extractive summary: sentences quoted from the sources.

Related