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公开(公告)号：US12002294B2
公开(公告)日：2024-06-04
申请号：US17192605
申请日：2021-03-04
发明人： Xiaomin Liu , Lei Zhang , Qun Gu , Zilong Hu
CPC分类号： G06V40/40 , G06V40/168 , H04N5/33 , H04N23/45
摘要： A method of face anti-spoofing, comprising, receiving a near infra-red facial image, having a near infrared channel, receiving a red-green-blue facial image, having a red channel, a green channel and a blue channel, generating a synthetic three channel image based on the near infrared channel, the red channel, the green channel and the blue channel and training a deep neural network based on the synthetic three channel image.
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公开(公告)号：US20230067442A1
公开(公告)日：2023-03-02
申请号：US17463166
申请日：2021-08-31
发明人： Xiaomin Liu , Lei Zhang , Qun Gu
摘要： A method of human pose estimation, including, receiving an image frame, extracting in at least a first stage a first stage image feature based on the image frame, extracting in at least a second stage a second stage image feature based on the first stage image feature, extracting in at least a subsequent stage a subsequent stage image feature based on the second stage image feature, up-sampling the subsequent stage image feature, up-sampling the second stage image feature, concatenating the first stage image feature, the up-sampled second stage image feature and the up-sampled subsequent stage image feature and outputting a feature map based on an output of the concatenation.
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公开(公告)号：US20220284229A1
公开(公告)日：2022-09-08
申请号：US17192605
申请日：2021-03-04
发明人： Xiaomin Liu , Lei Zhang , Qun Gu , Zilong Hu
摘要： A method of face anti-spoofing, comprising, receiving a near infra-red facial image, having a near infrared channel, receiving a red-green-blue facial image, having a red channel, a green channel and a blue channel, generating a synthetic three channel image based on the near infrared channel, the red channel, the green channel and the blue channel and training a deep neural network based on the synthetic three channel image.
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