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44 results about "Aging face" patented technology

Aging changes in the face. The appearance of the face and neck typically changes with age. Loss of muscle tone and thinning skin gives the face a flabby or drooping appearance. In some people, sagging jowls may create the look of a double chin.

Cross-age face recognition method and device

The embodiment of the invention provides a cross-age face recognition method and device. The method comprises the following steps: inputting a to-be-recognized face picture into a picture generation model, and obtaining generated pictures of a plurality of age groups corresponding to the to-be-recognized face picture; respectively inputting the to-be-recognized face picture and each generated picture into the basic feature extraction model and the feature extraction model of each age group, and outputting basic face features and face features of each age group; obtaining a feature vector according to the basic face features and the face features of each age group; and obtaining a recognition result of the to-be-recognized face picture according to the feature vector and a pre-obtained facelibrary. The embodiment of the invention provides a cross-age face recognition method and device. According to the cross-age face recognition method and device, the faces of different age groups aregenerated, the features of the faces in the face picture to be recognized and the generated features of the faces of different age groups are extracted respectively and fused, face recognition is conducted according to the fused face features, and the recognition accuracy of cross-age face recognition can be improved.
Owner:公安部户政管理研究中心 +1

Age classification assisted cross-age face recognition algorithm

The invention relates to an age classification assisted cross-age face recognition algorithm. The algorithm comprises the steps of extracting and preprocessing a face image with an identity tag and an age tag; training an age classification assisted cross-age face recognition network, wherein the cross-age face recognition network comprises a convolutional network, an identity feature extraction network and an age feature extraction network; and inputting the preprocessed face image containing the identity tag and the age tag into the convolutional network, and outputting a shared feature by a final full connection layer of the convolutional network. The cross-age face recognition method has the beneficial effects that a cross-age face recognition deep learning model is improved, and age-invariant face features are extracted to improve the accuracy of cross-age face recognition; the Softmax loss function is used to ensure the inter-class difference of the features, and the Centor Loss loss function is introduced to reduce the intra-class difference of the face features, so that the boundaries of the feature vectors of different classes are clearer, and the feature vectors supplement each other and jointly participate in the updating of network parameters.
Owner:ZHEJIANG UNIV CITY COLLEGE

Cross-age face recognition model training method, cross-age face recognition method and cross-age face recognition device

The invention relates to the technical field of artificial intelligence, and provides a cross-age face recognition model training method, a cross-age face recognition method and a cross-age face recognition device. The method comprises the steps that a training face image set is acquired, and the training face image set at least comprises a first face image and a second face image which belong to the same person at different ages and a third face image of another person; performing feature extraction on the training face image set to obtain a first age feature vector, a second age feature vector and a third age feature vector; calculating an age feature total loss value according to the first, second and third age feature vectors and a standard age feature vector; calculating a cross-age face feature loss value according to the first, second and third age feature vectors; and iteratively updating the basic recognition model according to the age feature total loss value and the cross-age face feature loss value until a preset iteration termination condition is reached, and obtaining a final cross-age face recognition model. The final cross-age face recognition model is good in recognition effect, and the recognition precision is obviously improved.
Owner:深圳集智数字科技有限公司

Face detection method based on child cross-age group face recognition technology

The invention relates to a face detection method, in particular to a face detection method based on a child cross-age face recognition technology, which comprises the following steps: acquiring a training face database and an age face database, extracting face basic features in the training face database, and inputting the face basic features into a double-layer heterogeneous deep neural network for training; and extracting face features of the same person at different ages and ages corresponding to the face features in the age face database, inputting the face features and the ages corresponding to the face features into a double-layer heterogeneous deep neural network for training to obtain a spatial mapping relationship of the face features at different ages, and processing at least twodifferent to-be-recognized face images to obtain a face recognition result; inputting the to-be-recognized face image into the trained double-layer heterogeneous deep neural network, and judging whether the face images are the same person or not by the double-layer heterogeneous deep neural network according to the similarity of the face features extracted from the to-be-recognized face image; according to the technical scheme provided by the invention, the defect that the cross-age face cannot be quickly and effectively recognized in the prior art can be effectively overcome.
Owner:安徽兰臣信息科技有限公司
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