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Rule-based high-level situation recognition from incomplete tracking data

 
: Münch, David; Ijsselmuiden, Joris; Grosselfinger, Ann-Kristin; Arens, Michael; Stiefelhagen, Rainer

:
Preprint urn:nbn:de:0011-n-2124301 (1.6 MByte PDF)
MD5 Fingerprint: 5c4090955b385e9fe2e4a4708e139760
The original publication is available at springerlink.com
Erstellt am: 30.8.2012


Bikakis, Antonis (Ed.):
Rules on the Web: Research and Applications. 6th International Symposium, RuleML 2012 : Montpellier, France, August 27-29, 2012. Proceedings
Berlin: Springer, 2012 (Lecture Notes in Computer Science 7438)
ISBN: 978-3-642-32688-2 (Print)
ISBN: 3-642-32688-9
ISBN: 978-3-642-32689-9 (Online)
ISSN: 0302-9743
S.317-324
International Symposium on Rules (RuleML) <6, 2012, Montpellier>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IOSB ()
rule-based expert system; Fuzzy Metric Temporal Logic; Situation Graph Tree; semantic video understanding

Abstract
Fuzzy metric temporal logic (FMTL) and situation graph trees (SGTs) have been shown to be promising tools in high-level situation recognition. They generate semantic descriptions from numeric perceptual data. FMTL and SGTs allow for sophisticated and universally applicable rule-based expert systems. Dealing with incomplete data is still a challenging task for rule-based systems. The FMTL/SGT system is extended by interpolation and hallucination to become capable of incomplete data. Therefore, one analysis to the robustness of the FMTL/SGT system in situation recognition is removing parts of the ground truth input tracks. The recognition results are compared to ground truth for situations such as "load object into car". The results show that the presented approach is robust against incomplete data. The contribution of this work is, first, an extension to the FMTL/SGT system to handle incomplete data via interpolation and hallucination, second, a knowledge base for recognizing vehicle-centered situations.

: http://publica.fraunhofer.de/dokumente/N-212430.html