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- W4300381517 abstract "The temporal component of videos provides an important clue for activity recognition, as a number of activities can be reliably recognized based on the motion information. In view of that, this work proposes a novel temporal stream for two-stream convolutional networks based on images computed from the optical flow magnitude and orientation, named Magnitude-Orientation Stream (MOS), to learn the motion in a better and richer manner. Our method applies simple nonlinear transformations on the vertical and horizontal components of the optical flow to generate input images for the temporal stream. Experimental results, carried on two well-known datasets (HMDB51 and UCF101), demonstrate that using our proposed temporal stream as input to existing neural network architectures can improve their performance for activity recognition. Results demonstrate that our temporal stream provides complementary information able to improve the classical two-stream methods, indicating the suitability of our approach to be used as a temporal video representation." @default.
- W4300381517 created "2022-10-03" @default.
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- W4300381517 date "2017-08-22" @default.
- W4300381517 modified "2023-09-29" @default.
- W4300381517 title "Activity Recognition based on a Magnitude-Orientation Stream Network" @default.
- W4300381517 doi "https://doi.org/10.48550/arxiv.1708.06637" @default.
- W4300381517 hasPublicationYear "2017" @default.
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