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Micro-expression spotting based on optical flow features.
Yuhong He
Zhongliang Xu
Lin Ma
Haifeng Li
Published in:
Pattern Recognit. Lett. (2022)
Keyphrases
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optical flow
image features
co occurrence
image sequences
classification accuracy
expression classification
feature space
feature vectors
feature set
motion segmentation
extracted features
qualitative and quantitative evaluation