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    Real-time face tracking with reference images
    33.
    发明授权
    Real-time face tracking with reference images 有权
    使用参考图像进行实时脸部跟踪

    公开(公告)号：US07620218B2

    公开(公告)日：2009-11-17

    申请号：US12141042

    申请日：2008-06-17

    申请人： Eran Steinberg ,  Petronel Bigioi ,  Peter Corcoran ,  Alexei Pososin ,  Alexandru Drimbarean ,  Florin Nanu ,  Stefan Petrescu

    发明人： Eran Steinberg ,  Petronel Bigioi ,  Peter Corcoran ,  Alexei Pososin ,  Alexandru Drimbarean ,  Florin Nanu ,  Stefan Petrescu

    IPC分类号： G06K9/00 ,  G06K9/36

    CPC分类号： G06K9/00 ,  G06K9/00228 ,  G06K9/00255 ,  G06K9/00261 ,  G06K2009/3291 ,  G06T7/251 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/30201

    摘要： A method of tracking a face in a reference image stream using a digital image acquisition device includes acquiring a full resolution main image and an image stream of relatively low resolution reference images each including one or more face regions. One or more face regions are identified within two or more of the reference images. A relative movement is determined between the two or more reference images. A size and location are determined of the one or more face regions within each of the two or more reference images. Concentrated face detection is applied to at least a portion of the full resolution main image in a predicted location for candidate face regions having a predicted size as a function of the determined relative movement and the size and location of the one or more face regions within the reference images, to provide a set of candidate face regions for the main image.

    摘要翻译： 使用数字图像获取装置跟踪参考图像流中的面部的方法包括获取每个包括一个或多个面部区域的相对低分辨率参考图像的全分辨率主图像和图像流。 在两个或更多个参考图像内识别一个或多个面部区域。 在两个或更多个参考图像之间确定相对运动。 确定两个或更多个参考图像的每一个内的一个或多个面部区域的大小和位置。 将集中脸部检测应用于预测位置的预测位置中的全分辨率主图像的至少一部分，所述候选面部区域具有作为所确定的相对运动的函数的预测大小以及所述一个或多个脸部区域的尺寸和位置 参考图像，以提供用于主图像的一组候选面区域。

    Method and apparatus for red-eye detection in an acquired digital image based on image quality pre and post filtering
    35.
    发明授权
    Method and apparatus for red-eye detection in an acquired digital image based on image quality pre and post filtering 有权
    基于图像质量前后滤波的获取的数字图像中的红眼检测方法和装置

    公开(公告)号：US07436998B2

    公开(公告)日：2008-10-14

    申请号：US11123971

    申请日：2005-05-06

    申请人： Eran Steinberg ,  Peter Corcoran ,  Yury Prilutsky ,  Petronel Bigioi ,  Florin Nanu

    发明人： Eran Steinberg ,  Peter Corcoran ,  Yury Prilutsky ,  Petronel Bigioi ,  Florin Nanu

    IPC分类号： G06K9/00

    CPC分类号： H04N1/62 ,  G06K9/0061 ,  G06T5/005 ,  G06T5/008 ,  G06T7/90 ,  G06T2207/30216 ,  H04N1/624

    摘要： A method for red-eye detection in an acquired digital image comprises acquiring a first image and analyzing the first acquired image to provide characteristics indicative of image quality. The process then determines if one or more corrective processes can be beneficially applied to the first acquired image according to the characteristics. Any such corrective processes are applied and red-eye defects are detected in an established order established according to determination and analysis of characteristics of the corrective process and/or resulting image qualities. Defect correction can comprise applying one or more image correction operations, or a chain of two or more red-eye filters to the first acquired image. In this case, prior to the detecting step, it is determined if the red-eye filter or red eye filter chain should be applied before or after image corrective processes and whether the red eye filter can be adapted in accordance with the characteristics. The red-eye filter and the order in which it is executed in relation to the various image corrective operations may be adapted accordingly.

    摘要翻译： 所获取的数字图像中的红眼检测方法包括获取第一图像并分析第一获取图像以提供指示图像质量的特征。 然后，该过程确定是否可以根据特征将一个或多个校正过程有益地应用于第一获取的图像。 应用任何这样的校正过程，并且按照根据校正过程的特性的确定和分析建立的既定顺序和/或所得到的图像质量来检测红眼缺陷。 缺陷校正可以包括将一个或多个图像校正操作或两个或更多个红眼滤波器的链应用于第一获取的图像。 在这种情况下，在检测步骤之前，确定在图像校正处理之前或之后是否应用红眼滤波器或红眼滤波器链，以及是否可以根据特性适配红眼滤波器。 可以相应地调整红眼滤波器及其相对于各种图像校正操作执行它的顺序。