JP2017142344A5 - - Google Patents

Claims (13)

A movement amount detecting means for detecting a movement amount of the subject on the image plane;
Before the exposure, the output of the shake detection means for detecting the shake of the apparatus, the output of the position detection means for detecting the position of the image shake correction means for correcting the image shake caused by the shake of the apparatus, and the output of the movement amount detection means Using a motion detection means for detecting the motion of a moving object,
A calculating means for calculating a moving direction of the image blur correcting means for preventing the subject from moving on the image plane during exposure using the output of the motion detecting means and the output of the shake detecting means;
A determining unit that determines an exposure start timing using a moving direction of the image blur correcting unit calculated by the calculating unit and an output of the position detecting unit;
An image blur correction apparatus comprising:   The determining unit is configured such that the moving direction of the image blur correcting unit calculated by the calculating unit passes the center position of the movable range of the image blur correcting unit with respect to the position of the image blur correcting unit before the exposure is started 2. The image blur correction apparatus according to claim 1, wherein the image blur correction apparatus determines that the exposure is to be started when the direction is the direction in which the exposure is to be performed. The determining unit is configured such that the moving direction of the image blur correcting unit calculated by the calculating unit passes through the center position of the movable range of the image blur correcting unit with respect to the position of the image blur correcting unit before the start of exposure. If not a direction, the image blur correction device according to claim 1, wherein the image blur correction means is characterized in determining that the exposure is started after reaching the center position of the movable range. The determining means includes an output of the shake detecting means, an output of the motion detecting means, and an amount of movement of the image blur correcting means during exposure that is expected from an exposure time, and a position of the image blur correcting means before the start of exposure. The image blur correction apparatus according to claim 1, wherein the timing for starting exposure is changed based on   2. The control unit according to claim 1, further comprising a control unit that controls the image blur correction unit based on an output of the shake detection unit before exposure, and the control unit includes a filter capable of changing a cutoff frequency. The image blur correction apparatus described.   The apparatus further comprises switching means for switching between the panning mode and the normal mode, and when the panning mode is set by the switching means, the cutoff frequency of the filter is changed so as to cut a low frequency band. The image blur correction apparatus according to claim 5, wherein   The image blur correction apparatus according to claim 1, wherein the image blur correction unit is a shift lens that is disposed on the photographing lens and moves in a direction different from the optical axis.   The image blur correction apparatus according to claim 1, wherein the image blur correction unit is a drive unit that drives the imaging device in a direction different from the optical axis.   9. The image blur correction apparatus according to claim 1, wherein the movement amount detection unit is a vector detection unit that detects a motion vector from an image of a plurality of frames. 10.   The image blur correction apparatus according to claim 1, wherein the shake detection unit is an angular velocity sensor. A movement amount detection step of detecting a movement amount of the subject on the image plane;
Before the exposure, the output of the shake detecting means for detecting the shake of the apparatus, the output of the position detecting means for detecting the position of the image shake correcting means for correcting the image shake caused by the shake of the apparatus, and the output of the movement amount detecting step Using a motion detection step of detecting the motion of a moving subject,
A calculation step of calculating a moving direction of the image blur correction unit for preventing the subject from moving on an image plane during exposure using the output in the motion detection step and the output of the shake detection unit; ,
A determination step of determining an exposure start timing using the movement direction of the image blur correction unit calculated in the calculation step and the output of the position detection unit;
An image blur correction apparatus control method comprising:   The program for making a computer perform each process of the control method of Claim 11.   A computer-readable storage medium storing a program for causing a computer to execute each step of the control method according to claim 11.