Affine Moment Invariants of Vector Fields

0495873 - ÚTIA 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Kostková, Jitka - Suk, Tomáš - Flusser, Jan
Affine Moment Invariants of Vector Fields.
Proceedings of the 25th IEEE International Conference on Image Processing 2018. Piscataway: IEEE, 2018, s. 1338-1342. ISBN 978-1-4799-7062-9.
[IEEE International Conference on Image Processing 2018 (ICIP 2018) /25./. Atény (GR), 07.10.2018-10.10.2018]
Grant CEP: GA ČR GA18-07247S
Institucionální podpora: RVO:67985556
Klíčová slova: Vector field * total transformation * affine invariants * template matching * vector field moments
Obor OECD: Computer hardware and architecture
http://library.utia.cas.cz/separaty/2018/ZOI/kostkova-0495873.pdf

Vector field (VF) is a special kind of multidimensional data. In each pixel, VF contains information about the direction and themagnitude of themeasured quantity. To detect the patterns of interest in the field, special matching methods must be developed. We propose a method for the description and matching of VF patterns under an unknown affine transformation of the field. Unlike digital images, transformations of VFs act not only on the spatial coordinates but also on the field values, which makes the detection different. To measure the similarity between the template and the field patch, we propose original invariants with respect to affine transformation designed from moments. Their performance is demonstrated by experiments on real data from fluid mechanics.
Trvalý link: http://hdl.handle.net/11104/0288948