Photographing system and method

Photographing system and method

  • CN 101,750,844 A
  • Filed: 12/18/2008
  • Published: 06/23/2010
  • Est. Priority Date: 12/18/2008
  • Status: Active Application
First Claim
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1. camera system, it comprises the filming apparatus that is used for filmed image, described filming apparatus is set with minimum zooming time, zoom rate and focal length variations scope, it is characterized in that, described camera system also comprises the zoom controller that is connected with described filming apparatus, and described zoom controller comprises:

  • The Time Calculation module, the ambient brightness value substitution exposure parametric equation formula that sensitivity value, f-number and filming apparatus sensed that is used for setting before taking calculates the time shutter that is fit to current environment brightness;

    The time comparison module is used for the minimum zooming time of described time shutter and filming apparatus and three times described minimum zooming time are compared to determine the zooming time of exposure process;

    Speed calculation module is used for calculating the zoom rate of filming apparatus in exposure process according to determined zooming time of described time comparison module and filming apparatus in the focal length variation value of exposure process;

    The focal length comparison module is used for filming apparatus compared zooming direction with definite exposure process when the difference of the focal length variations scope end value of front focal length and filming apparatus and described focal length variation value;

    The zoom control module is used for taking at the focal length that exposure process changes described filming apparatus according to determined zoom rate and zooming direction.

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