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公开(公告)号：US08422782B1
公开(公告)日：2013-04-16
申请号：US12895506
申请日：2010-09-30
申请人： Arnab Dhua , Sunil Ramesh
发明人： Arnab Dhua , Sunil Ramesh
CPC分类号： G06T7/0042 , G06K9/4604 , G06K9/4671 , G06K9/48 , G06K9/6277 , G06T7/73
摘要： Systems and methods are provided for creating contour images that represent the contour of objects reflected in images, calculating contour histogram descriptors of the contour images, and classifying images based in part on the histogram descriptors of the contour images. For example, a contour image of an image is created. A radial-polar grid having a plurality of radial-polar bins is then positioned on the contour image. A contour histogram descriptor is created to include a number of bins that correspond to the radial-polar bins of the radial-polar grid, where the contents of the bins of the contour histogram descriptor represent the number of pixels of the contour image that are located in the corresponding radial-polar bins of the radial-polar grid. Images are classified at least based in part on comparisons between contour histogram descriptors of the images and contour histogram descriptors of training images.
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公开(公告)号：US08463036B1
公开(公告)日：2013-06-11
申请号：US12895617
申请日：2010-09-30
CPC分类号： G06F17/30259 , G06K9/4642 , G06K9/66 , G06K2009/4666
摘要： Shape-based search of a collection of content associated with one or more images of inventory items (“inventory images”) is enabled at least in part by associating the collection of content and/or its associated inventory images with representative refinement shapes. Inventory items may be grouped into categories and at least one refinement shape may be created for each of the categories. A refinement-shape hierarchy may be created by arranging the refinement shapes into parent and child refinement shapes. Inventory images may be associated to at least one of the refinement shapes of the refinement-shape hierarchy based at least in part on similarities between the refinement shapes and shapes of the inventory items reflected in the inventory images.
摘要翻译： 至少部分地通过将内容的收集和/或其关联的库存图像与代表的细化形状相关联来启用与库存项目的一个或多个图像相关联的与内容相关联的内容的基于形状的搜索。 库存项目可以被分组并且可以为每个类别创建至少一个细化形状。 可以通过将细化形状布置成父和子细化形状来创建细化形状层次。 库存图像可以至少部分地基于在库存图像中反映的库存物品的细化形状和形状之间的相似性而与细化形状层级的至少一个细化形状相关联。
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公开(公告)号：US08447107B1
公开(公告)日：2013-05-21
申请号：US12895527
申请日：2010-09-30
申请人： Arnab Dhua , Sunil Ramesh
发明人： Arnab Dhua , Sunil Ramesh
IPC分类号： G06K9/00
CPC分类号： G06K9/4604 , G06K9/4647 , G06K9/6222
摘要： Systems and methods are provided for calculating and using histogram descriptors to compare images and to identify visually similar content. According to at least one embodiment, multiple histograms descriptors are calculated for individual images of a collection of content. These histogram descriptors may be used to identify two or more visually similar images in the collection of content. For example, if a user identifies an image of an item of interest, then embodiments search across the collection of content to identify other images of items that are visually similar to the selected item of interest. To do so, embodiments search across the histogram descriptors of the images in the collection of content to identify one or more images that have histograms descriptors that are similar to the histograms descriptors of the image of the selected item of interest.
摘要翻译： 提供了系统和方法，用于计算和使用直方图描述符来比较图像并识别视觉上相似的内容。 根据至少一个实施例，针对内容集合的各个图像计算多个直方图描述符。 这些直方图描述符可用于识别内容集合中的两个或多个视觉上相似的图像。 例如，如果用户识别感兴趣的项目的图像，则实施例跨越内容集合搜索以识别在视觉上类似于所选择的兴趣项目的项目的其他图像。 为了这样做，实施例搜索内容集合中的图像的直方图描述符，以识别具有与所选择的所选项目的图像的直方图描述符相似的直方图描述符的一个或多个图像。
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