发明公开
EP2477152A1 IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM 审中-公开
BILDVERARBEITUNGSVORRICHTUNG,BILDVERARBEITUNGSVERFAHREN,BILDVERARBEITUNGSPROGRAMM UND AUFZEICHNUNGSMEDIUM

  • 专利标题: IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM
  • 专利标题(中): BILDVERARBEITUNGSVORRICHTUNG,BILDVERARBEITUNGSVERFAHREN,BILDVERARBEITUNGSPROGRAMM UND AUFZEICHNUNGSMEDIUM
  • 申请号: EP10824895.6
    申请日: 2010-10-18
  • 公开(公告)号: EP2477152A1
    公开(公告)日: 2012-07-18
  • 发明人: ONAI, RikioSATO, TomohiroMORI, MasayaSANJO, Masahiro
  • 申请人: Rakuten, Inc.
  • 申请人地址: 4-12-3, Higashishinagawa Shinagawa-ku Tokyo 140-0002 JP
  • 专利权人: Rakuten, Inc.
  • 当前专利权人: Rakuten, Inc.
  • 当前专利权人地址: 4-12-3, Higashishinagawa Shinagawa-ku Tokyo 140-0002 JP
  • 代理机构: HOFFMANN EITLE
  • 优先权: JP2009241233 20091020
  • 国际公布: WO2011049046 20110428
  • 主分类号: G06T3/00
  • IPC分类号: G06T3/00 H04N1/387 H04N5/76
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM
摘要:
There are provided an image processing apparatus, an image processing method and an image processing program for transforming a target image having no contour of straight line portions.
An ellipse El by which the target image is approximated is calculated (S20), a center candidate O A of the target image is decided (S21), a first polygon P1 associated with the ellipse and the center candidate is calculated (S22), a projective transformation matrix for projectively transforming the first polygon into a second polygon P1' associated with an ellipse whose center is a point where the center candidate is projectively transformed is calculated (S23), and the target image is projectively transformed based on the projective transformation matrix to obtain a transformation image (S24).
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