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A Fluid Motion Estimator for Schlieren Image Velocimetry
- Source :
- 9th European Conference on Computer Vision (ECCV '06), 9th European Conference on Computer Vision (ECCV '06), May 2006, Graz, Austria. pp.198--210, ⟨10.1007/11744023_16⟩, IEEE European conference on computer vision, IEEE European conference on computer vision, 2006, Graz, Austria. ⟨10.1007/11744023_16⟩, Computer Vision – ECCV 2006 ISBN: 9783540338321, ECCV (1)
- Publication Year :
- 2006
- Publisher :
- HAL CCSD, 2006.
-
Abstract
- International audience; In this paper, we address the problem of estimating the motion of fluid flows that are visualized through a Schlieren system. Such a system is well known in fluid mechanics as it enables the visualization of unseeded flows. As the resulting images exhibit very low photometric contrasts, classical motion estimation methods based on the brightness consistency assumption (correlation-based approaches, optical flow methods) are completely inefficient. This work aims at proposing a sound energy based estimator dedicated to these particular images. The energy function to be minimized is composed of (a) a novel data term describing the fact that the observed luminance is linked to the gradient of the fluid density and (b) a specific div curl regularization term. The relevance of our estimator is demonstrated on real-world sequences.
- Subjects :
- Flow visualization
Computer science
Optical flow
Image processing
02 engineering and technology
01 natural sciences
Luminance
010305 fluids & plasmas
[SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Physics::Fluid Dynamics
Motion estimation
Schlieren
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Computer vision
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
business.industry
Estimator
Fluid mechanics
Velocimetry
[INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR]
Particle image velocimetry
[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]
020201 artificial intelligence & image processing
Artificial intelligence
business
Algorithm
Subjects
Details
- Language :
- English
- ISBN :
- 978-3-540-33832-1
- ISBNs :
- 9783540338321
- Database :
- OpenAIRE
- Journal :
- 9th European Conference on Computer Vision (ECCV '06), 9th European Conference on Computer Vision (ECCV '06), May 2006, Graz, Austria. pp.198--210, ⟨10.1007/11744023_16⟩, IEEE European conference on computer vision, IEEE European conference on computer vision, 2006, Graz, Austria. ⟨10.1007/11744023_16⟩, Computer Vision – ECCV 2006 ISBN: 9783540338321, ECCV (1)
- Accession number :
- edsair.doi.dedup.....fdc9448d320d547c41c3d2d8dd995234