EGU21-5902, updated on 04 Mar 2021
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

`Flowonthego' - flow tracking technology on your smartphone 

Jonathan Higham and Andrew Plater
Jonathan Higham and Andrew Plater
  • University of Liverpool, Geography and Planning, United Kingdom of Great Britain – England, Scotland, Wales (

Over the past few years, smartphone devices have become so powerful that in your pocket, not only do you have a device which can communicate with people across the world, the sheer power of these devices has now also brought a new frontier in scientific measurements. In this presentation, we present our smartphone app 'flowonthego', a technology which allows users to determine flow velocities, in almost real-time, from simple video footage. The instantaneous velocity fields are calculated by solving the Lucas-Kanade solutions to the optical flow equations and tracking naturally occurring features. The app also harnesses the potential of augmented reality, making calibration reference and the need tape measures a thing of the past. Furthermore, the app also packs an arsenal of post-processing tools in which users can understand basic statistics. From preliminary our studies we have found 'flowonthego' is able to match the statistics of commonly used ADCP's while also providing instantaneous full vector fields allowing users to better understand dynamical processing. 

How to cite: Higham, J. and Plater, A.: `Flowonthego' - flow tracking technology on your smartphone , EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-5902,, 2021.

Corresponding presentation materials formerly uploaded have been withdrawn.