Face authentication method and device
A face and face image technology, applied in the field of face authentication, can solve the problems of insufficient feature processing and understanding at all levels, insufficient description of images, gradient dispersion of deep networks, etc., to make up for the insufficient description of high-level features. Image defects, avoid gradient dispersion problems, and increase the effect of image feature richness
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[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0035] On the one hand, the present invention is a method for face authentication, such as figure 1 shown, including:
[0036] Step S101: Using the multi-level deep convolutional network that has been jointly trained by the multi-layer classification network in advance to extract the feature vectors of multiple levels sequentially from the face image and the face image template to be authenticated;
[0037] The multi-level deep convolutional network includes more than two convolutional networks, and each convolutional network includes convolution, activation, and downsampling operations. The order and number of these operations are not fixed and are determined according to actual conditions; each volume of the present invention Each product network extr...
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