Gesemann, Sebastian and Schanz, Daniel and Schröder, Andreas and Petra, Stefania and Schnörr, Christoph (2010) Recasting Tomo-PIV Reconstruction as Constrained and L1-Regularized Non-Linear Least Squares Problem. 15th International Symposium on Application Laser Techniques to Fluid Mechanics, 05. - 08.07.2010, Lisbon, Portugal.
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Tomo-PIV is a volumetric flow measurement system. It is able to obtain instantaneous 3D-3C velocity fields using multiple cameras that observe the same volume of two subsequently illuminated particle distributions from different angles. Part of the measurement technique is the 3D reconstruction of the particle volume from 2D images. This work presents a promising alternative approach to the popular reconstruction algorithms MART and SMART. Simulations and experimental data of a turbulent free jet at Ma = 0.7 are used in order to assess and demonstrate the performance of the newly developed reconstruction algorithm based on constrained least squares strategies and L1-regularization.
|Document Type:||Conference or Workshop Item (Speech)|
|Title:||Recasting Tomo-PIV Reconstruction as Constrained and L1-Regularized Non-Linear Least Squares Problem|
|In ISI Web of Science:||No|
|Page Range:||pp. 1-12|
|Series Name:||Conference Proceedings on USB-Stick|
|Keywords:||Tomographic PIV, algebraic reconstruction, regularization, preconditioning, constraining|
|Event Title:||15th International Symposium on Application Laser Techniques to Fluid Mechanics|
|Event Location:||Lisbon, Portugal|
|Event Type:||international Conference|
|Event Dates:||05. - 08.07.2010|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Experimental Methods|
|Deposited By:||Ilka Micknaus|
|Deposited On:||23 Jul 2010 11:16|
|Last Modified:||07 Jan 2014 14:31|
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