DocumentCode :
2120653
Title :
Fusion of range and intensity information for view invariant gesture recognition
Author :
Holte, M.B. ; Moeslund, T.B. ; Fihl, P.
Author_Institution :
Comput. Vision & Media Technol. Lab., Aalborg Univ., Aalborg
fYear :
2008
fDate :
23-28 June 2008
Firstpage :
1
Lastpage :
7
Abstract :
This paper presents a system for view invariant gesture recognition. The approach is based on 3D data from a CSEM SwissRanger SR-2 camera. This camera produces both a depth map as well as an intensity image of a scene. Since the two information types are aligned, we can use the intensity image to define a region of interest for the relevant 3D data. This data fusion improves the quality of the range data and hence results in better recognition. The gesture recognition is based on finding motion primitives in the 3D data. The primitives are represented compactly and view invariant using harmonic shape context. A probabilistic Edit Distance classifier is applied to identify which gesture best describes a string of primitives. The approach is trained on data from one viewpoint and tested on data from a different viewpoint. The recognition rate is 92.9% which is similar to the recognition rate when training and testing on gestures from the same viewpoint, hence the approach is indeed view invariant.
Keywords :
cameras; gesture recognition; image classification; image fusion; image motion analysis; probability; CSEM SwissRanger SR-2 camera; data fusion; harmonic shape context; image intensity information; image motion analysis; probabilistic edit distance classifier; view invariant gesture recognition; Cameras; Computer vision; Data analysis; Face detection; Humans; Image analysis; Image segmentation; Robot vision systems; Shape; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition Workshops, 2008. CVPRW '08. IEEE Computer Society Conference on
Conference_Location :
Anchorage, AK
ISSN :
2160-7508
Print_ISBN :
978-1-4244-2339-2
Electronic_ISBN :
2160-7508
Type :
conf
DOI :
10.1109/CVPRW.2008.4563161
Filename :
4563161
Link To Document :
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