Face living body detection method based on transfer learning
A technology of transfer learning and liveness detection, which is applied in the field of face liveness detection based on transfer learning, can solve the problems of poor generalization ability, large resource consumption, network overfitting, etc., and achieve good expression of image information and strong generalization ability Effect
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[0053] Hereinafter, the method for detecting a human face based on transfer learning of the present invention will be further described in conjunction with the accompanying drawings of the specification.
[0054] In the present invention, the video data of the source domain and the target domain are first divided into image sequences, and then the position of the face in the original image is detected by the face detection algorithm, and the face part is cut to form a fixed-size photo. Then initialize the parameters of the 3D convolutional neural network, use the labeled source domain data to train the 3D convolutional neural network, and use the classification loss function as the loss function. On the basis of training the network parameters, the source domain and target domain are then sent to the network with gradient reversal layer, and the network is trained again. The loss function is the loss function of the domain. The final trained network model not only has a high The ...
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