Invention Grant
US09402035B2 Method and apparatus for determining exposure setting 有权
用于确定曝光设置的方法和装置

  • Patent Title: Method and apparatus for determining exposure setting
  • Patent Title (中): 用于确定曝光设置的方法和装置
  • Application No.: US14696023
    Application Date: 2015-04-24
  • Publication No.: US09402035B2
    Publication Date: 2016-07-26
  • Inventor: Björn Benderius
  • Applicant: Axis AB
  • Applicant Address: SE Lund
  • Assignee: Axis AB
  • Current Assignee: Axis AB
  • Current Assignee Address: SE Lund
  • Agency: Volpe and Koenig, P.C.
  • Priority: EP14165865 20140424
  • Main IPC: H04N5/235
  • IPC: H04N5/235 G03B7/00
Method and apparatus for determining exposure setting
Abstract:
A device and method for determining exposure settings in a camera is disclosed. The method comprises capturing an image frame using an image sensor, the exposure of the capturing is based on an initial exposure value setting, determining a temporary exposure value by finding an exposure value that results in a substantially optimum value when applied to a total cost calculation, calculating a saturated pixels cost related to the saturated pixels for the captured image at the temporary exposure value, determining a next exposure value by finding a decrease in exposure value, in relation to the temporary exposure value, for which decrease a change in total cost for non-saturated pixels, in relation to the total cost for non-saturated pixels at the temporary exposure value, is substantially equal to the saturated pixel cost calculated at the temporary exposure value, using this determined next exposure value for capturing a new image frame.
Public/Granted literature
Information query
Patent Agency Ranking
0/0