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Feature-based detection and context discriminate classification for digital images

机译:基于特征的检测和上下文区分分类的数字图像

摘要

Detection and classification of targets in a digital image is accomplished by evaluating windowed portions of the image. A feature set is generated for each of a plurality of overlapping windowed portions, a weighted sum is formed for each portion based upon its feature set, and a context matrix is defined for each window. A score is formed from each context matrix and is normalized for each window. A threshold criteria is compared to a maximum score for each window. Each window having its maximum score satisfy the threshold criteria is classified as a possible target window and is assigned to a group based on location of the possible target window and its maximum score. A group score is formed for each group and compared to a group threshold criteria. Each group having its corresponding group score satisfying the group threshold criteria is classified as a target.
机译:通过评估图像的窗口部分,可以完成对数字图像中目标的检测和分类。为多个重叠的窗口部分中的每一个生成特征集,基于每个部分的特征集为每个部分形成加权和,并为每个窗口定义上下文矩阵。从每个上下文矩阵形成一个分数,并针对每个窗口对其进行归一化。将阈值标准与每个窗口的最大分数进行比较。具有最大分数满足阈值标准的每个窗口被分类为可能的目标窗口,并根据可能的目标窗口的位置及其最大分数被分配给一个组。为每个组形成一个组分数,并将其与组阈值标准进行比较。具有其对应的组分数满足组阈值标准的每个组被分类为目标。

著录项

  • 公开/公告号US6999625B1

    专利类型

  • 公开/公告日2006-02-14

    原文格式PDF

  • 申请/专利权人 SUSAN NELSON;

    申请/专利号US20020196388

  • 发明设计人 SUSAN NELSON;

    申请日2002-07-12

  • 分类号G06K9/00;G06K9/62;

  • 国家 US

  • 入库时间 2022-08-21 21:43:14

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