Invention Grant
US08384761B2 Image pickup device for correcting chromatic aberration by switching a coordinate conversion parameter according to a type of light source or illumination light 失效
用于根据光源或照明光的类型切换坐标转换参数来校正色差的图像拾取装置

  • Patent Title: Image pickup device for correcting chromatic aberration by switching a coordinate conversion parameter according to a type of light source or illumination light
  • Patent Title (中): 用于根据光源或照明光的类型切换坐标转换参数来校正色差的图像拾取装置
  • Application No.: US12382105
    Application Date: 2009-03-09
  • Publication No.: US08384761B2
    Publication Date: 2013-02-26
  • Inventor: Ryosuke Kasahara
  • Applicant: Ryosuke Kasahara
  • Applicant Address: JP Tokyo
  • Assignee: Ricoh Company, Ltd.
  • Current Assignee: Ricoh Company, Ltd.
  • Current Assignee Address: JP Tokyo
  • Agency: Harness, Dickey & Pierce, P.L.C.
  • Priority: JP2008-061180 20080311
  • Main IPC: H04N7/00
  • IPC: H04N7/00
Image pickup device for correcting chromatic aberration by switching a coordinate conversion parameter according to a type of light source or illumination light
Abstract:
An image pickup device includes an optical system having a wide angle, wherein at least magnification chromatic aberration is large; an image sensor configured to read an image picked up through the optical system; and a magnification chromatic aberration correction unit configured to perform magnification chromatic aberration correction by performing coordinate conversion on the image read by the image sensor. The magnification chromatic aberration correction unit includes plural coordinate conversion parameters used for the magnification chromatic aberration correction, and switches the coordinate conversion parameter used for the magnification chromatic aberration correction in the event that there is a change in a light source or an illumination light.
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