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    SELECTION OF SPECTRAL BANDS OR FILTERS FOR MATERIAL CLASSIFICATION UNDER MULTIPLEXED ILLUMINATION
    1.
    发明申请
    SELECTION OF SPECTRAL BANDS OR FILTERS FOR MATERIAL CLASSIFICATION UNDER MULTIPLEXED ILLUMINATION 有权
    在多光照射下选择材料分类的光谱带或滤光片

    公开(公告)号：US20150160128A1

    公开(公告)日：2015-06-11

    申请号：US14309771

    申请日：2014-06-19

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Chao Liu ,  Sandra Skaff

    IPC: G01N21/55

    CPC classification number: G01N21/55 ,  G01N2201/0627 ,  G01N2201/129 ,  G06K9/2018 ,  G06K9/209 ,  G06K9/628 ,  G06N99/005

    Abstract: Material classification using multiplexed illumination by broadband spectral light from multiple different incident angles, coupled with multi-spectral narrow band spectral measurement of light reflected from the illuminated object of unknown material, wherein selection of spectral bands for illumination or for narrow-band capture may comprise analysis of a database of labeled training material samples within a multi-class classification framework, captured using a relatively large number of spectral bands (such as 32 spectral bands), so as to select a subset of a relatively fewer number of spectral bands (such as 5 spectral bands), wherein the selected spectral bands in the subset retain a significant aptitude for distinguishing between different classifications of materials.

    Abstract translation: 通过来自多个不同入射角的宽带光谱光进行多重照明的材料分类，以及从未知材料的被照射物体反射的光的多光谱窄带光谱测量，其中用于照明或用于窄带捕获的光谱带的选择可以包括 使用相对大量的频谱带（例如32个频谱带）捕获的多类分类框架内的标记训练材料样本的数据库的分析，以便选择相对较少数量的光谱带的子集（例如 作为5个光谱带），其中子集中所选择的光谱带保留用于区分不同材料分类的显着性质。

    MATERIAL CLASSIFICATION
    3.
    发明申请
    MATERIAL CLASSIFICATION 有权
    材料分类

    公开(公告)号：US20150219557A1

    公开(公告)日：2015-08-06

    申请号：US14635848

    申请日：2015-03-02

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Sandra Skaff ,  Chao Liu

    IPC: G01N21/55 ,  G01N21/25

    CPC classification number: G01N21/55 ,  B07C5/342 ,  G01N21/255 ,  G01N2021/845 ,  G01N2201/0627 ,  G01N2201/12

    Abstract: Material classification of an object is provided. Parameters for classification are accessed. The parameters include a selection to select a subset of angles for classification, a selection to select a subset of spectral bands for classification, a selection to capture texture features, and a selection to compute image-level features. The object is illuminated and a feature vector is computed based on the parameters. The material from which the object is fabricated is classified using the feature vector.

    Abstract translation: 提供对象的材料分类。 访问分类参数。 这些参数包括选择用于分类的角度子集的选择，选择用于分类的光谱带的子集，捕获纹理特征的选择以及计算图像级特征的选择。 对象被照亮，并且基于参数来计算特征向量。 使用特征向量分类制造物体的材料。

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