发明授权
US07593569B2 Pixel defect correction device 有权
像素缺陷校正装置

  • 专利标题: Pixel defect correction device
  • 专利标题(中): 像素缺陷校正装置
  • 申请号: US11248882
    申请日: 2005-10-12
  • 公开(公告)号: US07593569B2
    公开(公告)日: 2009-09-22
  • 发明人: Junzo Sakurai
  • 申请人: Junzo Sakurai
  • 申请人地址: US NY Rochester
  • 专利权人: Eastman Kodak Company
  • 当前专利权人: Eastman Kodak Company
  • 当前专利权人地址: US NY Rochester
  • 代理商 Pamela R. Crocker
  • 优先权: JP2004-369737 20041221
  • 主分类号: G06K9/00
  • IPC分类号: G06K9/00
Pixel defect correction device
摘要:
A point defect and a line defect in a captured image resulting due to an imaging element defect in a digital camera are interpolated. A defect correction circuit of a digital camera simultaneously corrects a point flaw, a vertical line flaw, and a horizontal line flaw in a captured image. In consideration of cases in which a point flaw and a vertical line flaw are present adjacent to each other, the defect correction circuit executes predetermined difference calculations using pixels surrounding a target pixel to be corrected and determines an interpolation pattern based on a comparison of magnitude among the difference calculation values. The defect correction circuit also selects, for interpolation, an interpolation pattern from among interpolation patterns prepared in advance based on an adjacent pattern of the point flaw and line flaw. The adjacent pattern is detected by a defect decode circuit 78.
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