Invention Grant
US07973829B2 Image sensing apparatus, image sensing method, recording medium, and program for controlling exposure by correcting a brightness value when an optical filter is manually inserted 有权
图像感测装置,图像感测方法,记录介质和用于当手动插入光学滤波器时通过校正亮度值来控制曝光的程序

  • Patent Title: Image sensing apparatus, image sensing method, recording medium, and program for controlling exposure by correcting a brightness value when an optical filter is manually inserted
  • Patent Title (中): 图像感测装置,图像感测方法,记录介质和用于当手动插入光学滤波器时通过校正亮度值来控制曝光的程序
  • Application No.: US10660096
    Application Date: 2003-09-10
  • Publication No.: US07973829B2
    Publication Date: 2011-07-05
  • Inventor: Yoshiro Udagawa
  • Applicant: Yoshiro Udagawa
  • Applicant Address: JP Tokyo
  • Assignee: Canon Kabushiki Kaisha
  • Current Assignee: Canon Kabushiki Kaisha
  • Current Assignee Address: JP Tokyo
  • Agency: Cowan, Liebowitz & Latman, P.C.
  • Priority: JP2002-264310 20020910
  • Main IPC: H04N9/73
  • IPC: H04N9/73 H04N9/083
Image sensing apparatus, image sensing method, recording medium, and program for controlling exposure by correcting a brightness value when an optical filter is manually inserted
Abstract:
An object of the invention is to provide an image sensing apparatus capable of sensing an image in consideration of the influence of inserting/removing an optical filter, an image sensing method, a recording medium, and a program. To achieve this object, a brightness value calculation unit calculates the first brightness value representing the brightness of part or all of an object which is imaged on a CCD image sensing element. A brightness value correction unit calculates the second brightness value by correcting the first brightness value calculated by the brightness value calculation unit on the basis of the light reduction amount generated by inserting an ND filter. A system controller controls an optical system and signal processing in a DSP circuit by using the second brightness value calculated by the brightness value correction unit.
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