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    • 2. 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。
    • 3. 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。