Patent ID: 7760997
Filing Date: 2010-07-20
Classification: G03B,H04N

Abstract:
1. A shake detection device that detects a shake amount of a camera to be generated when photographing a subject, the shake detection device comprising: a detection sensor that detects a rotation speed around a predetermined axis of the camera; a first image shift amount calculation unit that drives the detection sensor to detect the rotation speed and, for an image of the subject to be photographed by the camera, calculates a first image shift amount as an image shift amount in a first direction on the basis of the rotation speed; a second image shift amount calculation unit that performs a predetermined image analysis on the image of the subject photographed by the camera and, for the image of the subject photographed by the camera, calculates a second image shift amount as an image shift amount in a second direction on the basis of the analysis result; a shake amount estimation unit that estimates the shake amount of the camera using the first image shift amount and the second image shift amount; and an image shift amount recording unit that records the second image shift amount calculated by the second image shift amount calculation unit each time the subject is photographed, wherein the shake amount estimation unit estimates the shake amount of the camera using an image shift amount, which is calculated through a predetermined method from a plurality of second image shift amounts recorded by the image shift amount recording unit, as the second image shift amount.