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Yaermaimaiti, Yilihamu

doi:10.1080/12460125.2021.1961378

Journal of Decision Systems

2021

DOI: 10.1080/12460125.2021.1961378

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Statement of Removal

Yilihamu Yaermaimaiti

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2022

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Expression Recognition Using Improved AlexNet Network in Robot Intelligent Interactive System

Zhao

Chen

2022

Journal of Robotics

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Aiming at the insufficient feature extraction in the expression feature extraction stage of traditional convolutional neural network and the misclassification of mislabeled samples, an expression recognition and robot intelligent interaction method using deep learning is proposed. First, in image preprocessing, the dimension of the color image is reduced by image gray adjustment to reduce the amount of calculation, the shadow interference is eliminated by the average method, and the image is enhanced by histogram equalization. Second, multichannel convolution is used to replace the single convolution size in the second convolution layer in AlexNet, the Global Average Pooling layer is introduced to replace the fully connected layer, and Batch Normalization is introduced to improve the feature extraction ability of the model and avoid gradient explosion. Finally, the Focal Loss is improved by setting the probability threshold to avoid the impact of mislabeling samples on the classification performance of the model. The experimental results show that the recognition accuracy of the model on FER2013 data set is 98.36%. The effectiveness of the algorithm is verified on the intelligent interactive system of service robot based on expression recognition. Compared with other expression recognition methods, the proposed method can extract more expression features and recognize facial expression more accurately.

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Expression Recognition Using Improved AlexNet Network in Robot Intelligent Interactive System

Zhao

Chen

2022

Journal of Robotics

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Statement of Removal

Cited by 1 publication

References 8 publications

Expression Recognition Using Improved AlexNet Network in Robot Intelligent Interactive System

Expression Recognition Using Improved AlexNet Network in Robot Intelligent Interactive System

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