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- W2077155629 abstract "In this paper, a view-invariant approach to human action recognition using 3D reconstruction data is proposed. Initially, a set of calibrated Kinect sensors are employed for producing a 3D reconstruction of the performing subjects. Subsequently, a 3D flow field is estimated for every captured frame. For performing action recognition, the ‘Bag-of-Words’ methodology is followed, where SpatioTemporal Interest Points (STIPs) are detected in the 4D space (xyz-coordinates plus time). A novel local-level 3D flow descriptor is introduced, which among others incorporates spatial and surface information in the flow representation and efficiently handles the problem of defining 3D orientation at every STIP location. Additionally, typical 3D shape descriptors of the literature are used for producing a more complete representation. Experimental results as well as comparative evaluation using datasets from the Huawei/3DLife 3D human reconstruction and action recognition Grand Challenge demonstrate the efficiency of the proposed approach." @default.
- W2077155629 created "2016-06-24" @default.
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- W2077155629 date "2014-10-01" @default.
- W2077155629 modified "2023-09-24" @default.
- W2077155629 title "Local descriptions for human action recognition from 3D reconstruction data" @default.
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- W2077155629 doi "https://doi.org/10.1109/icip.2014.7025569" @default.
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