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Moment Invariants for 2D Flow Fields Using Normalization

Bujack, Roxana and Hotz, Ingrid and Scheuermann, Gerik and Hitzer, Eckhard (2014) Moment Invariants for 2D Flow Fields Using Normalization. In: IEEE Pacific Visualisation Symposium, pp. 41-48. IEEE. Pacific Visualization Symposium (PacificVis), 4.-7. Mär. 2014, Yokohama, Japan. DOI: [10.1109/PacificVis.2014.16]

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Abstract

The analysis of 2D flow data is often guided by the search for char- acteristic structures with semantic meaning. One way to approach this question is to identify structures of interest by a human ob- server. The challenge then, is to find similar structures in the same or other datasets on different scales and orientations. In this paper, we propose to use moment invariants as pattern de- scriptors for flow fields. Moment invariants are one of the most pop- ular techniques for the description of objects in the field of image recognition. They have recently also been applied to identify 2D vector patterns limited to the directional properties of flow fields. In contrast to previous work, we follow the intuitive approach of moment normalization, which results in a complete and inde- pendent set of translation, rotation, and scaling invariant flow field descriptors. They also allow to distinguish flow features with differ- ent velocity profiles. We apply the moment invariants in a pattern recognition algorithm to a real world dataset and show that the the- oretic results can be extended to discrete functions in a robust way.

Item URL in elib:https://elib.dlr.de/93797/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Best Paper Award
Title:Moment Invariants for 2D Flow Fields Using Normalization
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bujack, RoxanaUniversitaetLeipzigUNSPECIFIED
Hotz, IngridUNSPECIFIEDUNSPECIFIED
Scheuermann, GerikUNSPECIFIEDUNSPECIFIED
Hitzer, EckhardUNSPECIFIEDUNSPECIFIED
Date:2014
Journal or Publication Title:IEEE Pacific Visualisation Symposium
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
DOI :[10.1109/PacificVis.2014.16]
Page Range:pp. 41-48
Publisher:IEEE
Status:Published
Keywords:flow visualization
Event Title:Pacific Visualization Symposium (PacificVis)
Event Location:Yokohama, Japan
Event Type:international Conference
Event Dates:4.-7. Mär. 2014
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben SISTEC
Location: Braunschweig
Institutes and Institutions:Institut of Simulation and Software Technology > Software for Space Systems and Interactive Visualisation
Deposited By: Hotz, Ingrid
Deposited On:18 Dec 2014 09:14
Last Modified:09 Feb 2017 19:21

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