发明授权
- 专利标题: Image identifying apparatus
- 专利标题(中): 图像识别装置
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申请号: US765814申请日: 1997-01-17
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公开(公告)号: US6047085A公开(公告)日: 2000-04-04
- 发明人: Toshio Sato , Teruhiko Uno , Toshio Hirasawa , Hiroshi Takahashi , Kazuyo Nakagawa
- 申请人: Toshio Sato , Teruhiko Uno , Toshio Hirasawa , Hiroshi Takahashi , Kazuyo Nakagawa
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 主分类号: G06T1/00
- IPC分类号: G06T1/00 ; G06K9/46 ; G06T7/00 ; G06T7/40 ; G06K9/00
摘要:
Apparatus and method for identifying the color image of an object. The object's image is digitized and a cut-off portion of the image containing the object is determined. The cut-off portion image data is normalized. Selected pixels of the normalized image are subjected to an averaging process to provide an averaged image containing R, G, and B color components. H, V, and C components of the averaged image data are computed, and their V, c, and d components are computed from the H, V, and C components. A color feature extractor computes from the c and d component data a parameter representative of the object to be identified. This parameter is provided to a memory controller to retrieve from a memory that stores target images one or more images categorized according to the computed parameter. A matching section matches each retrieved target image with the Vcd component data and determines which target image is most similar.
公开/授权文献
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