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- W3207572937 abstract "Emotional detection based on facial expressions is an important procedure in high-risk tasks such as criminal investigation or lie detection. To reduce the impact of the inconsistency in the duration of macro- and micro-expression, we propose an effective Spatio-temporal Convolutional Attention Network (STCAN) for spotting macro- and micro-expression intervals in long video sequences. The spatial features of each image in the video sequence are extracted through the Convolution Neural Network. Then, considering the problem of the inconsistency in the duration of the macro- and micro-expression, the multi-head self-attention model is used to analyze the weight of the spatial feature of the image in the temporal space. Finally, the time interval of emotional changes is determined according to the weight of each frame of the video sequence, and the macro- and micro-expression intervals are obtained through the threshold segmentation model. Considering the problem of Leave-One-Subject-Out cross-validation the training time long, we verified the effectiveness of our model on the SAMM Long Video and CAS(ME)2 datasets through the Leave-Half-Subject-Out (LHSO) cross-validation method. The experiments show that the STCAN model can achieve competitive results on Facial Micro-Expression (FME) Challenge 2021." @default.
- W3207572937 created "2021-10-25" @default.
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- W3207572937 date "2021-10-20" @default.
- W3207572937 modified "2023-10-02" @default.
- W3207572937 title "Spatio-temporal Convolutional Attention Network for Spotting Macro- and Micro-expression Intervals" @default.
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- W3207572937 doi "https://doi.org/10.1145/3476100.3484463" @default.
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