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Author, Editor

Author(s):

Kuhn, Alexander
Rössl, Christian
Weinkauf, Tino
Theisel, Holger

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Not MPG Author(s):

Kuhn, Alexander
Rössl, Christian
Theisel, Holger

Editor(s):

Hauser, Helwig
Kobourov, Stephen
Qu, Huamin

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Not MPII Editor(s):

Hauser, Helwig
Kobourov, Stephen
Qu, Huamin

BibTeX cite key*:

kuhn12a

Title, Booktitle

Title*:

A Benchmark for Evaluating FTLE Computations

Booktitle*:

IEEE Pacific Visualization Symposium 2012

Event, URLs

URL of the conference:


URL for downloading the paper:

http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6183582&isnumber=6183555

Event Address*:

Songdo, Korea

Language:

English

Event Date*
(no longer used):


Organization:


Event Start Date:

28 February 2012

Event End Date:

2 March 2012

Publisher

Name*:

IEEE

URL:


Address*:

Piscataway, NJ

Type:


Vol, No, Year, pp.

Series:


Volume:


Number:


Month:


Pages:

121-128

Year*:

2012

VG Wort Pages:


ISBN/ISSN:

978-1-4673-0864-9

Sequence Number:


DOI:

10.1109/PacificVis.2012.6183582



Note, Abstract, ©


(LaTeX) Abstract:

The Finite Time Lyapunov Exponent (FTLE) has become a widespread tool for analyzing unsteady flow behavior. For its computation, several numerical methods have been introduced, which provide trade-offs between performance and accuracy. In order to decide which methods and parameter settings are suitable for a particular application, an evaluation of the different FTLE methods is necessary. We propose a general benchmark for FTLE computation, which consists of a number of 2D time-dependent flow fields and error measures. Evaluating the accuracy of a numerically computed FTLE field requires a ground truth, which is not available for realistic flow data sets, since such fields can generally not be described in a closed form. To overcome this, we introduce approaches to create non-trivial vector fields with a closed-form formulation of the FTLE field. Using this, we introduce a set of benchmark flow data sets that resemble relevant geometric aspects of Lagrangian structures, but have an analytic solution for FTLE. Based on this ground truth, we perform a comparative evaluation of three standard FTLE concepts. We suggest error measures based on the variance of both, the fields and the extracted ridge structures.

HyperLinks / References / URLs:

http://tinoweinkauf.net/publications/abskuhn12a.html



Download
Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Computer Graphics Group

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{kuhn12a,
AUTHOR = {Kuhn, Alexander and R{\"o}ssl, Christian and Weinkauf, Tino and Theisel, Holger},
EDITOR = {Hauser, Helwig and Kobourov, Stephen and Qu, Huamin},
TITLE = {A Benchmark for Evaluating {FTLE} Computations},
BOOKTITLE = {IEEE Pacific Visualization Symposium 2012},
PUBLISHER = {IEEE},
YEAR = {2012},
PAGES = {121--128},
ADDRESS = {Songdo, Korea},
ISBN = {978-1-4673-0864-9},
DOI = {10.1109/PacificVis.2012.6183582},
}


Entry last modified by Anja Becker, 12/19/2012
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Editor(s)
[Library]
Created
12/21/2011 05:13:21 AM
Revision
1.
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Editor
Anja Becker
Tino Weinkauf


Edit Date
19.12.2012 10:21:03
12/21/2011 05:13:21 AM


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