C3.1 - 3D Density Field Reconstruction of Vehicles Exhaust Plumes using Background Oriented Schlieren Tomography based on Windowed Fourier Transform and Graphical Phase Analysis
- Event
- SMSI 2025
2025-05-06 - 2025-05-08
Nürnberg - Band
- Lectures
- Chapter
- C3 - Gas Sensing I
- Author(s)
- H. Imtiaz, P. Schaffer, T. Forstinger, M. Kupper, A. Bergmann - Graz University of Technology, Graz (Austria)
- Pages
- 143 - 144
- DOI
- 10.5162/SMSI2025/C3.1
- ISBN
- 978-3-910600-06-5
- Price
- free
Abstract
This work presents a 3D Gas Schlieren Imaging Sensor (GSIS) system. The 3D-GSIS system allows to construct 3-D density fields of gas flows and vehicle exhaust plumes from conventional camera images, by using an innovative Windowed Fourier Transform-based Graphical Phase Analysis (WFT-GPA) algorithm and state-of-the-art Optical Flow techniques to calculate and construct density fields. The system will be combined with advanced remote emission sensing (RES) systems to measure the direct concentration of pollutants in the vehicle exhaust plumes.