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In this paper, we propose an accelerated local feature extraction in a reuse scheme for action recognition. Most local features of the previous frame could be reused due to the high correlation between successive frames. Feature extraction is only needed to be applied partially in the current frame. The full-frame features of the current frame are combined by features extracted at different times...
In still images, multi-scale regions contain rich information of different granularity. However, only semantically meaningful regions provide auxiliary cues for action recognition. Moreover, regions at different scales contribute differently. Motivated by the two observations, we propose an approach that is composed of three components: 1) detecting semantic region candidates at multiple scales, 2)...
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