[1]CHEN Bin,ZHU Jinning.Micro-expression recognition based on a dual-stream enhanced fusion network[J].CAAI Transactions on Intelligent Systems,2023,18(2):360-371.[doi:10.11992/tis.202109036]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
18
Number of periods:
2023 2
Page number:
360-371
Column:
学术论文—机器感知与模式识别
Public date:
2023-05-05
- Title:
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Micro-expression recognition based on a dual-stream enhanced fusion network
- Author(s):
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CHEN Bin; ZHU Jinning
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Informatization Office, Nanjing Normal University, Nanjing 210046, China
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- Keywords:
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micro-expression; dual-stream network; generative adversarial network; data enhancement; fusion of features; pattern identification; convolutional neural network; cycle constraint
- CLC:
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TP39; TH691.9
- DOI:
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10.11992/tis.202109036
- Abstract:
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We propose a micro-expression recognition model based on a dual-stream enhanced network in order to address the issues of insufficient samples from the dataset of micro-expression and uneven distribution of sample types leading to a low rate of robustness. Targeting a dual-stream convolutional neural network of single-frame RGB image flow and optical image flow, a micro-expression recognition model is built based on a fundamental authoritative dataset and data enhancement. Single-frame airspace information and optical time flow domain information are incorporated in the SoftMax logistic regression layer to improve the network performance for two independent streams. The dataset is augmented by introducing a method for image generation based on a generative adversarial network with loop constraints. After segmenting the input micro-expression video frame sequence into greyscale single frame sequences and optical flow single frame sequences of a dual-stream sequence diagram, augmenting the data of the two sequences, and constructing the micro-expression recognition model, the input micro-expression video frame sequence is subdivided. The rate of micro-expression recognition has been significantly enhanced by this method. The micro-expression recognition model based on dual-stream enhanced networks can effectively improve the recognition accuracy of micro-expressions with improved robustness and generalization state.