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    • 4. 发明申请
    • DETECTION OF OBJECTS IN DIGITAL IMAGES
    • 检测数字图像中的对象
    • US20130011016A1
    • 2013-01-10
    • US13614760
    • 2012-09-13
    • Norman HAASYing LISharathchandra PANKANTI
    • Norman HAASYing LISharathchandra PANKANTI
    • G06K9/46
    • G06K9/00818G06K9/6257
    • A method to detect objects in a digital image. At least one image representing at least one frame of a video sequence is received. A given color channel of the image is extracted. At least one blob that stands out from a background of the given color channel is identified. One or more features are extracted from the blob. The one or more features are provided to a plurality of pre-learned object models each including a set of pre-defined features associated with a pre-defined blob type. The one or more features are compared to the set of pre-defined features. The blob is determined to be of a type that substantially matches a pre-defined blob type associated with one of the pre-learned object models. At least a location of an object is visually indicated within the image that corresponds to the blob.
    • 一种检测数字图像中的对象的方法。 接收表示视频序列的至少一帧的至少一个图像。 提取图像的给定颜色通道。 识别从给定颜色通道的背景中突出出的至少一个斑点。 从斑点中提取一个或多个特征。 将一个或多个特征提供给多个预先学习的对象模型,每个预先学习的对象模型包括与预定义的斑点类型相关联的一组预定义特征。 将一个或多个特征与一组预定义特征进行比较。 blob被确定为与预先识别的对象模型之一相关联的预定义blob类型的类型。 至少一个对象的位置在对应于斑点的图像内被目视指示。
    • 5. 发明申请
    • OBJECT RECOGNITION USING HAAR FEATURES AND HISTOGRAMS OF ORIENTED GRADIENTS
    • 使用HAAR特征的对象识别和面向对象的等级的组织
    • US20110255743A1
    • 2011-10-20
    • US13085985
    • 2011-04-13
    • Weiguang GUANNorman HAASYing LISharathchandra PANKANTI
    • Weiguang GUANNorman HAASYing LISharathchandra PANKANTI
    • G06K9/00
    • G06K9/00818G06K9/6257
    • A system and method to detect objects in a digital image. At least one image representing at least one frame of a video sequence is received. A sliding window of different window sizes at different locations is placed in the image. A cascaded classifier including a plurality of increasingly accurate layers is applied to each window size and each location. Each layer includes a plurality of classifiers. An area of the image within a current sliding window is evaluated using one or more weak classifiers in the plurality of classifiers based on at least one of Haar features and Histograms of Oriented Gradients features. An output of each weak classifier is a weak decision as to whether the area of the image includes an instance of an object of a desired object type. A location of the zero or more images associated with the desired object type is identified.
    • 一种用于检测数字图像中的对象的系统和方法。 接收表示视频序列的至少一帧的至少一个图像。 在不同位置的不同窗口大小的滑动窗口放置在图像中。 包括多个越来越精确的层的级联分类器被应用于每个窗口大小和每个位置。 每个层包括多个分类器。 基于Haar特征和定向梯度特征的至少一个,使用多个分类器中的一个或多个弱分类器来评估当前滑动窗口内的图像的区域。 每个弱分类器的输出是关于图像的区域是否包括期望对象类型的对象的实例的弱决定。 识别与所需对象类型相关联的零个或多个图像的位置。
    • 6. 发明申请
    • DETECTION OF OBJECTS IN DIGITAL IMAGES
    • 检测数字图像中的对象
    • US20110249867A1
    • 2011-10-13
    • US13086023
    • 2011-04-13
    • Norman HAASYing LISharathchandra PANKANTI
    • Norman HAASYing LISharathchandra PANKANTI
    • G06K9/00
    • G06K9/00818G06K9/6257
    • A system and method to detect objects in a digital image. At least one image representing at least one frame of a video sequence is received. A given color channel of the image is extracted. At least one blob that stands out from a background of the given color channel is identified. One or more features are extracted from the blob. The one or more features are provided to a plurality of pre-learned object models each including a set of pre-defined features associated with a pre-defined blob type. The one or more features are compared to the set of pre-defined features. The blob is determined to be of a type that substantially matches a pre-defined blob type associated with one of the pre-learned object models. At least a location of an object is visually indicated within the image that corresponds to the blob.
    • 一种用于检测数字图像中的对象的系统和方法。 接收表示视频序列的至少一帧的至少一个图像。 提取图像的给定颜色通道。 识别从给定颜色通道的背景中突出出的至少一个斑点。 从斑点中提取一个或多个特征。 将一个或多个特征提供给多个预先学习的对象模型,每个预先学习的对象模型包括与预定义的斑点类型相关联的一组预定义特征。 将一个或多个特征与一组预定义特征进行比较。 blob被确定为与预先识别的对象模型之一相关联的预定义blob类型的类型。 至少一个对象的位置在对应于斑点的图像内被目视指示。