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    • 1. 发明授权
    • Feature point location determination method and apparatus
    • 特征点位置确定方法和装置
    • US08971589B2
    • 2015-03-03
    • US13333388
    • 2011-12-21
    • Masami KatoTakashi Suzuki
    • Masami KatoTakashi Suzuki
    • G06K9/00
    • G06K9/00281
    • A method for determining feature point locations in an image performs a first search in a predetermined first search area to search for locations of plural feature points in the image, corrects the locations of the plural feature points based on a geometric layout relationship among the plural feature points searched for, sets a second search area based on the corrected location of each of the feature points, and performs a second search in the second search area to search for the location of each of the feature points. Then, the method determines reliability of the location of each feature point searched for by the second search and selects one of the corrected location and the location searched for by the second search, as a location of the feature point.
    • 用于确定图像中的特征点位置的方法在预定的第一搜索区域中执行第一搜索以搜索图像中的多个特征点的位置,基于多个特征点之间的几何布局关系来校正多个特征点的位置 搜索的点,基于每个特征点的校正位置设置第二搜索区域,并且在第二搜索区域中执行第二搜索以搜索每个特征点的位置。 然后,该方法确定通过第二次搜索搜索到的每个特征点的位置的可靠性,并且通过第二次搜索选择校正位置和搜索到的位置中的一个作为特征点的位置。
    • 2. 发明申请
    • FEATURE POINT LOCATION DETERMINATION METHOD AND APPARATUS
    • 特征点位置确定方法和装置
    • US20090220157A1
    • 2009-09-03
    • US12393508
    • 2009-02-26
    • Masami KatoTakashi Suzuki
    • Masami KatoTakashi Suzuki
    • G06K9/46
    • G06K9/00281
    • A method for determining feature point locations in an image performs a first search in a predetermined first search area to search for locations of plural feature points in the image, corrects the locations of the plural feature points based on a geometric layout relationship among the plural feature points searched for, sets a second search area based on the corrected location of each of the feature points, and performs a second search in the second search area to search for the location of each of the feature points. Then, the method determines reliability of the location of each feature point searched for by the second search and selects one of the corrected location and the location searched for by the second search, as a location of the feature point.
    • 用于确定图像中的特征点位置的方法在预定的第一搜索区域中执行第一搜索以搜索图像中的多个特征点的位置,基于多个特征点之间的几何布局关系来校正多个特征点的位置 搜索的点,基于每个特征点的校正位置设置第二搜索区域,并且在第二搜索区域中执行第二搜索以搜索每个特征点的位置。 然后,该方法确定通过第二次搜索搜索到的每个特征点的位置的可靠性,并且通过第二次搜索选择校正位置和搜索到的位置中的一个作为特征点的位置。
    • 3. 发明授权
    • Feature point location determination method and apparatus
    • 特征点位置确定方法和装置
    • US08280173B2
    • 2012-10-02
    • US12393508
    • 2009-02-26
    • Masami KatoTakashi Suzuki
    • Masami KatoTakashi Suzuki
    • G06K9/46
    • G06K9/00281
    • A method for determining feature point locations in an image performs a first search in a predetermined first search area to search for locations of plural feature points in the image, corrects the locations of the plural feature points based on a geometric layout relationship among the plural feature points searched for, sets a second search area based on the corrected location of each of the feature points, and performs a second search in the second search area to search for the location of each of the feature points. Then, the method determines reliability of the location of each feature point searched for by the second search and selects one of the corrected location and the location searched for by the second search, as a location of the feature point.
    • 用于确定图像中的特征点位置的方法在预定的第一搜索区域中执行第一搜索以搜索图像中的多个特征点的位置,基于多个特征点之间的几何布局关系来校正多个特征点的位置 搜索的点,基于每个特征点的校正位置设置第二搜索区域,并且在第二搜索区域中执行第二搜索以搜索每个特征点的位置。 然后,该方法确定通过第二次搜索搜索到的每个特征点的位置的可靠性,并且通过第二次搜索选择校正位置和搜索到的位置中的一个作为特征点的位置。
    • 4. 发明申请
    • FEATURE POINT LOCATION DETERMINATION METHOD AND APPARATUS
    • 特征点位置确定方法和装置
    • US20120087590A1
    • 2012-04-12
    • US13333388
    • 2011-12-21
    • Masami KatoTakashi Suzuki
    • Masami KatoTakashi Suzuki
    • G06K9/46
    • G06K9/00281
    • A method for determining feature point locations in an image performs a first search in a predetermined first search area to search for locations of plural feature points in the image, corrects the locations of the plural feature points based on a geometric layout relationship among the plural feature points searched for, sets a second search area based on the corrected location of each of the feature points, and performs a second search in the second search area to search for the location of each of the feature points. Then, the method determines reliability of the location of each feature point searched for by the second search and selects one of the corrected location and the location searched for by the second search, as a location of the feature point.
    • 用于确定图像中的特征点位置的方法在预定的第一搜索区域中执行第一搜索以搜索图像中的多个特征点的位置,基于多个特征点之间的几何布局关系来校正多个特征点的位置 搜索的点,基于每个特征点的校正位置设置第二搜索区域,并且在第二搜索区域中执行第二搜索以搜索每个特征点的位置。 然后,该方法确定通过第二次搜索搜索到的每个特征点的位置的可靠性,并且通过第二次搜索选择校正位置和搜索到的位置中的一个作为特征点的位置。
    • 10. 发明申请
    • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20110150341A1
    • 2011-06-23
    • US12966725
    • 2010-12-13
    • Takahisa YamamotoMasami KatoYoshinori Ito
    • Takahisa YamamotoMasami KatoYoshinori Ito
    • G06K9/46
    • G06K9/4604G06K2009/4666
    • An image processing apparatus includes a comparison unit that selects a pixel of interest in a processing image, and compare magnitudes of luminance value of the pixel of interest and luminance value of each of a plurality of neighboring pixels having a predetermined positional relationship with the pixel of interest; a calculation unit that calculates a feature amount of the pixel of interest based on the predetermined positional relationship between the pixel of interest and each of the plurality of neighboring pixels and a comparison result obtained by the comparison unit. For two neighboring pixels at positions which are point symmetrical with respect to the pixel of interest, the comparison unit sets that only one of the two neighboring pixels has the predetermined positional relationship.
    • 一种图像处理装置,包括:比较单元,其选择处理图像中的感兴趣像素,并将感兴趣像素的亮度值的大小与具有预定位置关系的多个相邻像素的亮度值与 利益; 计算单元,其基于所述关注像素和所述多个相邻像素中的每一个之间的预定位置关系以及由所述比较单元获得的比较结果来计算所述感兴趣像素的特征量。 对于相对于感兴趣像素点对称的位置处的两个相邻像素,比较单元设置两个相邻像素中只有一个具有预定的位置关系。