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    • 4. 发明授权
    • Feature descriptors
    • 特征描述符
    • US08666169B2
    • 2014-03-04
    • US13279940
    • 2011-10-24
    • Feng TangDaniel R. Tretter
    • Feng TangDaniel R. Tretter
    • G06K9/46
    • G06K9/4647G06K2009/4666
    • Methods, devices, and systems for determining feature descriptors are provided. An example includes defining a plurality of anchor points within a patch of pixels in a particular area that includes a detected feature in an image, defining a first set of subpatches and calculating an intensity of each of the first set of subpatches, defining a second set of subpatches and calculating an intensity of each of the second set of subpatches, comparing the intensity of each of the second set of subpatches to the intensity of each of the first set of subpatches and if the intensity of a second set subpatch is higher than the intensity of a first set subpatch assign a binary value, otherwise assign an alternative binary value, and concatenating all the assigned binary values into a binary feature descriptor.
    • 提供了用于确定特征描述符的方法,设备和系统。 一个例子包括在包括图像中的检测到的特征的特定区域中的像素块内定义多个锚点,定义第一组子集并计算第一组子集的每个的强度,定义第二组 并且计算第二组子图的每一个的强度,将第二组子图的每个的强度与第一组子图的每一个的强度进行比较,以及如果第二组子图的强度高于 第一集合子项的强度分配二进制值,否则分配替代二进制值,并将所有分配的二进制值连接成二进制特征描述符。
    • 5. 发明申请
    • FEATURE DESCRIPTORS
    • 特征描述
    • US20130101226A1
    • 2013-04-25
    • US13279940
    • 2011-10-24
    • Feng TangDaniel R. Tretter
    • Feng TangDaniel R. Tretter
    • G06K9/46
    • G06K9/4647G06K2009/4666
    • Methods, devices, and systems for determining feature descriptors are provided. An example includes defining a plurality of anchor points within a patch of pixels in a particular area that includes a detected feature in an image, defining a first set of subpatches and calculating an intensity of each of the first set of subpatches, defining a second set of subpatches and calculating an intensity of each of the second set of subpatches, comparing the intensity of each of the second set of subpatches to the intensity of each of the first set of subpatches and if the intensity of a second set subpatch is higher than the intensity of a first set subpatch assign a binary value, otherwise assign an alternative binary value, and concatenating all the assigned binary values into a binary feature descriptor.
    • 提供了用于确定特征描述符的方法,设备和系统。 一个例子包括在包括图像中的检测到的特征的特定区域中的像素块内定义多个锚点,定义第一组子集并计算第一组子集的每个的强度,定义第二组 并且计算第二组子图的每一个的强度,将第二组子图的每个的强度与第一组子图的每一个的强度进行比较,以及如果第二组子图的强度高于 第一集合子项的强度分配二进制值,否则分配替代二进制值,并将所有分配的二进制值连接到二进制特征描述符中。
    • 8. 发明申请
    • IMAGE SEGMENTATION
    • 图像分割
    • US20130259374A1
    • 2013-10-03
    • US13433948
    • 2012-03-29
    • Lulu HeFeng TangQian Lin
    • Lulu HeFeng TangQian Lin
    • G06K9/34
    • G06K9/34G06K9/00369G06K9/3216G06T7/11G06T7/143G06T7/194G06T2207/10024G06T2207/20104
    • In one implementation, an image segmentation system defines a first discriminative classifier and a second discriminative classifier. The first discriminative classifier is associated with a first segment of an object in an image based on a first foreground sample region of the image and a first background sample region of the image. The second discriminative classifier is associated with a second segment of the object based on a second foreground sample region of the image and a second background sample region of the image. The image segmentation system then identifies at least a portion of the first segment using the first discriminative classifier and at least a portion of the second segment using the second discriminative classifier.
    • 在一个实现中,图像分割系统定义第一辨别分类器和第二辨别分类器。 第一鉴别分类器基于图像的第一前景样本区域和图像的第一背景样本区域与图像中的对象的第一片段相关联。 第二鉴别分类器基于图像的第二前景样本区域和图像的第二背景样本区域与对象的第二片段相关联。 然后,图像分割系统使用第一鉴别分类器识别第一片段的至少一部分,并使用第二鉴别分类器识别第二片段的至少一部分。