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Image capturing apparatus to prevent image blurring and control method therefor

  • US 8,319,842 B2
  • Filed: 11/10/2008
  • Issued: 11/27/2012
  • Est. Priority Date: 12/13/2007
  • Status: Active Grant
First Claim
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1. An image capturing apparatus comprising:

  • an image capturing unit which captures an object image formed by an imaging optical system and outputs an image signal;

    a motion vector detection unit which detects a local motion vector on the basis of correlation between image signals continuously captured by said image capturing unit;

    a motion vector determination unit configured to determine a motion vector of an entire image based on the detected motion vectors;

    a reliability evaluation value calculation unit which determines whether every local motion vector is valid or invalid, and which calculates a reliability evaluation value of the motion vector of the entire image based on the valid local motion vectors;

    a reduction rate determination unit configured to determine a reduction rate based on the reliability evaluation value;

    a blurring correction amount determination unit configured to determine an image blurring correction amount by correcting a correction amount calculated based on the motion vector of the entire image, based on the reduction rate anda blurring correction unit which corrects image blurring on the basis of the image blurring correction amount.

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