Multiple-joint pedestrian tracking using periodic models

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Estimating accurate positions of multiple pedestrians is a critical task in robotics and autonomous cars. We propose a tracker based on typical human motion patterns to track multiple pedestrians. This paper assumes that the legs’ reflection and extension angles are approximately changing periodically during human motion. A Fourier series is fitted in order to describe the moving, such as describing the position and velocity of the hip, knee, and ankle. Our tracker receives the position of the ankle, knee, and hip as measurements. As a proof of concept, we compare our tracker with state-of-the-art methods. The proposed models have been validated by experimental data, the Human Gait Database (HuGaDB), and the Karlsruhe Institute of Technology and Toyota Technological Institute (KITTI) tracking benchmark. The results indicate that our tracker is able to estimate the reflection and extension angles with a precision of 90.97%. Moreover, the comparison shows that the tracking precision increases up to 1.3% with the proposed tracker when compared to a constant velocity based tracker.

Original languageEnglish
Article number6917
Number of pages17
JournalSensors (Switzerland)
Volume20
Issue number23
DOIs
Publication statusPublished - 1 Dec 2020

Keywords

  • Harmonic motion
  • Joint tracking
  • Kinematics estimation
  • Pedestrian–car interaction
  • Tracking algorithm

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