Measurement noise model for depth camera-based people tracking

Otto Korkalo*, Tapio Takala

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Downloads (Pure)

Abstract

Depth cameras are widely used in people tracking applications. They typically suffer from significant range measurement noise, which causes uncertainty in the detections made of the people. The data fusion, state estimation and data association tasks require that the measurement uncertainty is modelled, especially in multi-sensor systems. Measurement noise models for different kinds of depth sensors have been proposed, however, the existing approaches require manual calibration procedures which can be impractical to conduct in real-life scenarios. In this paper, we present a new measurement noise model for depth camera-based people tracking. In our tracking solution, we utilise the so-called plan-view approach, where the 3D measurements are transformed to the floor plane, and the tracking problem is solved in 2D. We directly model the measurement noise in the plan-view domain, and the errors that originate from the imaging process and the geometric transformations of the 3D data are combined. We also present a method for directly defining the noise models from the observations. Together with our depth sensor network self-calibration routine, the approach allows fast and practical deployment of depth-based people tracking systems.

Original languageEnglish
Article number4488
Number of pages20
JournalSensors
Volume21
Issue number13
DOIs
Publication statusPublished - 1 Jul 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Data fusion
  • Depth cameras
  • Measurement noise models
  • Multiple-view tracking
  • People tracking

Fingerprint

Dive into the research topics of 'Measurement noise model for depth camera-based people tracking'. Together they form a unique fingerprint.

Cite this