High-resolution facial expression image restoration via adaptive total variation regularization for classroom learning environment
Infrared Physics & Technology(2023)
摘要
•The difference between the low-resolution facial expression image and high-resolution one is revealed.•The distribution of wavelet transform coefficient of high-resolution image is sparser than that of low-resolution image.•The proposed method is conducted on the real facial images to validate its effectiveness.
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关键词
Infrared videos,Image restoration,Regularization,Classroom teaching,Wavelet transform
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