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Exact(8)
Thus, compact and discriminative representations of motion features are required.
Their method demonstrated that local motion features are comparatively better than global features.
Specifically, appearance and motion features are simultaneously extracted using a PCANet from 3D gradients.
In Guo and Zhang's model, intensity, color, and motion features are comprised into a quaternion image as an individual channel for taking phase spectrum.
For human motion features, we cannot apply the p-spectrum directly since human motion features are defined as sequences of vectors.
The shape and motion features are then encoded by bag-of-visual-words (BOVW) method [37] to obtain the local features.
Similar(52)
Motion features were effective particularly in Parkour, which often include jumping.
For each plaque, a vector of texture and motion features was estimated, which was then reduced to the most robust ones by means of ANalysis of VAriance (ANOVA).
The slow motion feature is also highly correlated with excitability (ρ=0.5066).
However, the dimension of the extracted motion feature is still high.
However, when there is no motion in the scene or when the scene includes a global motion, motion-based features are not reliable for periodicity measurement.
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