Video-based hydrometry: A Bayesian camera calibration method for uncertainty analysis

  • J. Le Coz
  • , B. Renard
  • , V. Vansuyt
  • , A. Hauet
  • , M. Jodeau

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Large-scale image velocimetry applications have become increasingly popular for measuring surface flow velocities and river discharges. Image orthorectification is a key step in the process and the resulting velocity and discharge uncertainty remains difficult to estimate. A novel Bayesian camera calibration method is proposed to combine prior knowledge on camera parameters and ground reference points. The method is tested using a typical crowd-sourced flood video. The parametric and structural uncertainty components due to camera calibration can be combined with other sources of errors (stage, velocity coefficient, bed shift, etc.) to build an uncertainty budget.

Original languageEnglish
Title of host publicationRiver Flow 2020 - Proceedings of the 10th Conference on Fluvial Hydraulics
EditorsWim Uijttewaal, Mario J. Franca, Daniel Valero, Victor Chavarrias, Claudia Ylla Arbos, Ralph Schielen, Ralph Schielen, Alessandra Crosato
PublisherCRC Press/Balkema
Pages1053-1060
Number of pages8
ISBN (Electronic)9780367627737
Publication statusPublished - 1 Jan 2020
Externally publishedYes
Event10th Conference on Fluvial Hydraulics, River Flow 2020 - Virtual, Online, Netherlands
Duration: 7 Jul 202010 Jul 2020

Publication series

NameRiver Flow 2020 - Proceedings of the 10th Conference on Fluvial Hydraulics

Conference

Conference10th Conference on Fluvial Hydraulics, River Flow 2020
Country/TerritoryNetherlands
CityVirtual, Online
Period7/07/2010/07/20

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