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18 条记录 (耗时 0.022 秒)

    Parameter learning method, parameter learning apparatus, pattern classification method, and pattern classification apparatus
    2.
    发明公开
    Parameter learning method, parameter learning apparatus, pattern classification method, and pattern classification apparatus 审中-公开
    Parameterlernverfahren，Parameterlernvorrichtung，Musterklassifikationsverfahren und Musterklassifikationsvorrichtung

    公开(公告)号：EP1873687A2

    公开(公告)日：2008-01-02

    申请号：EP07110987.0

    申请日：2007-06-25

    申请人： Canon Kabushiki Kaisha

    发明人： Mitarai, Yusuke ,  Matsugu, Masakazu ,  Mori, Katsuhiko ,  Torii, Kan ,  Sato, Hiroshi

    IPC分类号： G06K9/00 ,  G06K9/62

    CPC分类号： G06K9/00288 ,  G06K9/00228 ,  G06K9/00248 ,  G06K9/6232 ,  G06K9/6256 ,  G06K9/6269

    摘要： A plurality of pieces of learning data, each associated with a class to which the piece of the learning data belong, are input. In each piece of the learning data, a statistical amount of attribute values of elements in each of specific k parts, k being equal to or larger than 1, is calculated. Each piece of the learning data is mapped in a k-dimensional feature space as a vector having the calculated k statistics amounts as elements. Based on each piece of the mapped learning data and the classes to which the pieces of learning data belong, parameters for classifying input data into one of the plurality of classes are learned in the k-dimensional feature space. By using the parameters, pattern classification can be performed with high speed and high accuracy.

    摘要翻译： 输入与学习数据所属的类别相关联的多条学习数据。 在每个学习数据中，计算每个特定k个部分中的元素的属性值的统计量，k等于或大于1。 将每条学习数据作为具有所计算的k个统计量的向量作为元素映射到k维特征空间中。 基于映射的学习数据和学习数据所属的类别，在k维特征空间中学习用于将输入数据分类为多个类中的一个的参数。 通过使用参数，可以高速，高精度地进行图案分类。

    Information processing apparatus, information processing method, and storage medium
    5.
    发明公开
    Information processing apparatus, information processing method, and storage medium 审中-公开
    Informationsverarbeitungsvorrichtung，Informationsverarbeitungsverfahren und Speichermedium

    公开(公告)号：EP2416280A1

    公开(公告)日：2012-02-08

    申请号：EP11175065.9

    申请日：2011-07-22

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kaneda, Yuji ,  Matsugu, Masakazu ,  Mori, Katsuhiko

    IPC分类号： G06K9/00 ,  G06T7/00

    CPC分类号： G06K9/00597 ,  G06K9/00221

    摘要： The present invention refers to an information processing apparatus comprising: obtaining means (100) for obtaining an image of an object captured by image sensing means; face region detection means (110) for detecting a face region of the object from the image; eye region detection means (110) for detecting an eye region of the object; generation means (120) for generating a high-resolution image and low-resolution image of the face region detected by the face region detection means; first extraction means (130) for extracting a first feature amount indicating a direction of a face existing in the face region from the low-resolution image; second extraction means (140) for extracting a second feature amount indicating a direction of an eye existing in the eye region from the high-resolution image; and estimation means (150) for estimating a gaze direction of the object from the first feature amount and the second feature amount.

    摘要翻译： 本发明涉及一种信息处理设备，包括：获取装置，用于获得由图像感测装置捕获的对象的图像; 面部区域检测装置（110），用于从图像中检测物体的面部区域; 眼部区域检测装置（110），用于检测物体的眼睛区域; 生成装置（120），用于产生由面部区域检测装置检测的面部区域的高分辨率图像和低分辨率图像; 第一提取装置，用于从低分辨率图像提取指示存在于面部区域中的面部的方向的第一特征量; 第二提取装置（140），用于从高分辨率图像中提取指示存在于眼睛区域中的眼睛的方向的第二特征量; 以及用于从第一特征量和第二特征量估计对象的视线方向的估计装置（150）。

    Image-processing apparatus and method, program, and storage medium
    6.
    发明公开
    Image-processing apparatus and method, program, and storage medium 有权
    Bildverarbeitungsgerätsowie Verfahren，Programm und Speichmedium

    公开(公告)号：EP2009577A1

    公开(公告)日：2008-12-31

    申请号：EP08159212.3

    申请日：2008-06-27

    申请人： Canon Kabushiki Kaisha

    发明人： Kaneda, Yuji ,  Mori, Katsuhiko ,  Sato, Hiroshi

    IPC分类号： G06K9/00 ,  G06K9/46

    CPC分类号： G06K9/00845 ,  G06K9/00315 ,  G06K9/0061 ,  G06K9/4628

    摘要： An image-processing apparatus for executing accurate facial expression recognition even for a subject hard to recognize a facial expression is provided. A person's face region is extracted from an image input from an image input unit. A predetermined partial region that changes between when the facial expression is in the first and second states is extracted from the extracted face region. A facial expression evaluation value is calculated using an evaluation value calculation formula. When the calculated facial expression evaluation value exceeds a threshold value, it is determined that the facial expression is in the second state. If the difference between the maximum value and the minimum value of the calculated facial expression evaluation value within a predetermined time is smaller than a predetermined value, the evaluation value calculation formula or its parameter is changed to increase the difference.

    摘要翻译： 提供了即使对于难以识别面部表情的对象来执行精确的面部表情识别的图像处理装置。 从图像输入单元输入的图像中提取人脸区域。 从提取的面部区域提取在面部表情处于第一状态和第二状态之间时的变化的预定的部分区域。 使用评价值计算公式计算面部表情评价值。 当所计算的面部表情评估值超过阈值时，确定面部表情处于第二状态。 如果在预定时间内计算的面部表情评估值的最大值和最小值之间的差小于预定值，则改变评估值计算公式或其参数以增加差异。

    Information processing apparatus and control method therefor
    8.
    发明授权
    Information processing apparatus and control method therefor 有权

    公开(公告)号：EP1768058B1

    公开(公告)日：2018-08-01

    申请号：EP06019860.3

    申请日：2006-09-22

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kaneda, Yuji ,  Matsugu, Masakazu ,  Mori, Katsuhiko

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00302 ,  G06K9/00281 ,  G06K9/00315 ,  G06K9/4628

    摘要： An information processing apparatus includes an image input unit (100) which inputs image data containing a face, a face position detection unit (101) which detects, from the image data, the position of a specific part of the face, and a facial expression recognition unit (102) which detects a feature point of the face from the image data on the basis of the detected position of the specific part and determines facial expression of the face on the basis of the detected feature point. The feature point is detected at a detection accuracy higher than detection of the position of the specific part. Detection of the position of the specific part is robust to a variation in the detection target.

    Information processing apparatus and control method therefor
    10.
    发明公开
    Information processing apparatus and control method therefor 审中-公开
    Informationsverarbeitungsvorrichtung undPrüfungsverfahrendafür

    公开(公告)号：EP1768058A2

    公开(公告)日：2007-03-28

    申请号：EP06019860.3

    申请日：2006-09-22

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kaneda, Yuji ,  Matsugu, Masakazu ,  Mori, Katsuhiko

    IPC分类号： G06T20060101

    CPC分类号： G06K9/00302 ,  G06K9/00281 ,  G06K9/00315 ,  G06K9/4628

    摘要： An information processing apparatus includes an image input unit (100) which inputs image data containing a face, a face position detection unit (101) which detects, from the image data, the position of a specific part of the face, and a facial expression recognition unit (102) which detects a feature point of the face from the image data on the basis of the detected position of the specific part and determines facial expression of the face on the basis of the detected feature point. The feature point is detected at a detection accuracy higher than detection of the position of the specific part. Detection of the position of the specific part is robust to a variation in the detection target.

    摘要翻译： 信息处理装置包括输入包含脸部的图像数据的图像输入单元（100），从图像数据检测脸部特定部位的位置的面部位置检测单元（101）和面部表情 识别单元（102），其基于所检测的特定部分的位置从图像数据检测面部的特征点，并且基于检测到的特征点来确定面部的脸部表情。 以比检测特定部位的位置高的检测精度来检测特征点。 检测特定部位的位置对于检测目标的变化是鲁棒的。