公开(公告)号：US20130342702A1

公开(公告)日：2013-12-26

申请号：US13533706

申请日：2012-06-26

申请人： Xiaopeng Zhang ,  Xiaokang Zhang ,  Jilai Wang ,  Xiaoming Zhou ,  Gang Qiu ,  Liang Shen ,  Chen Feng

发明人： Xiaopeng Zhang ,  Xiaokang Zhang ,  Jilai Wang ,  Xiaoming Zhou ,  Gang Qiu ,  Liang Shen ,  Chen Feng

IPC分类号： H04N5/33 ,  G06K9/00

CPC分类号： G06K9/00255 ,  G06K9/00906 ,  G06K9/2018

摘要： Systems and methods for detecting a live human face in an image are disclosed. The methods and systems are capable of receiving multispectral image data that includes a human face. The multispectral image data can comprise visible light image data and near-infrared (NIR) image data. The multispectral image data can be processed to detect the human face. The detected human face in the visible light image data can be associated with the detected human face in the NIR image data to determine whether the detected human face is a live human face.

摘要翻译： 公开了用于检测图像中的活人脸的系统和方法。 方法和系统能够接收包含人脸的多光谱图像数据。 多光谱图像数据可以包括可见光图像数据和近红外（NIR）图像数据。 可以处理多光谱图像数据以检测人脸。 可见光图像数据中检测到的人脸可以与NIR图像数据中检测到的人脸相关联，以确定检测到的人脸是否是活人脸。

公开(公告)号：US10452894B2

公开(公告)日：2019-10-22

申请号：US13533706

申请日：2012-06-26

申请人： Xiaopeng Zhang ,  Xiaokang Zhang ,  Jilai Wang ,  Xiaoming Zhou ,  Gang Qiu ,  Liang Shen ,  Chen Feng

发明人： Xiaopeng Zhang ,  Xiaokang Zhang ,  Jilai Wang ,  Xiaoming Zhou ,  Gang Qiu ,  Liang Shen ,  Chen Feng

IPC分类号： H04N5/33 ,  G06K9/00 ,  G06K9/20

摘要： Systems and methods for detecting a live human face in an image are disclosed. The methods and systems are capable of receiving multispectral image data that includes a human face. The multispectral image data can comprise visible light image data and near-infrared (NIR) image data. The multispectral image data can be processed to detect the human face. The detected human face in the visible light image data can be associated with the detected human face in the NIR image data to determine whether the detected human face is a live human face.

公开(公告)号：US06697033B1

公开(公告)日：2004-02-24

申请号：US09724456

申请日：2000-11-28

申请人： Kwok-Chiu Leung ,  Xiaokang Zhang ,  Foo-Yat Fong

发明人： Kwok-Chiu Leung ,  Xiaokang Zhang ,  Foo-Yat Fong

IPC分类号： G09G500

CPC分类号： G09G5/00 ,  G09G5/006 ,  G09G2330/026 ,  G09G2370/042

摘要： A method and system connects a display device or other device to a computer system during operation of the system. Initially a run time EDID (Extended Display Identification Data) flag is set to a first value indicating no run time EDID is required. By monitoring for an interrupt a checking is carried out for a change to a new display device in the computer system. If no change to a new display device is detected, the run time EDID flag is checked. If the run time EDID flag indicates that no run time EDID is required, an EDID is read from a video BIOS on a graphics adapter in the computer system. If the run time EDID flag indicates that a run time EDID is required, an EDID is read from a video memory on a graphics adapter in the computer system. If a change to a new display device is detected, the run time EDID flag is set to a second value and EDID is then downloaded from the new display device.

摘要翻译： 在系统操作期间，方法和系统将显示设备或其他设备连接到计算机系统。 最初将运行时EDID（扩展显示识别数据）标志设置为指示不需要运行时EDID的第一值。 通过监视中断，执行检查以更改计算机系统中的新显示设备。 如果未检测到新显示设备的更改，则检查运行时间EDID标志。 如果运行时间EDID标志指示不需要运行时间EDID，则从计算机系统中的图形适配器上的视频BIOS读取EDID。 如果运行时间EDID标志指示需要运行时间EDID，则从计算机系统中的图形适配器上的视频存储器读取EDID。 如果检测到对新显示设备的改变，则将运行时间EDID标志设置为第二值，然后从新的显示设备下载EDID。