Shake correction control device, operation method of shake correction control device, operation program of shake correction control device, and imaging apparatus
A shake correction control device includes an acquisition unit and an operation control unit. The acquisition unit acquires, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended. The operation control unit controls the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element. In a case where a state where the related amount acquired in the acquisition unit satisfies the operation recommendation condition does not continue for a setting period defined by a time series of a plurality of consecutive times, the operation control unit performs a control for operating only the electronic correction unit out of the mechanical correction unit and the electronic correction unit.
1. A shake correction control device comprising:
an acquisition unit that acquires, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended; and
an operation control unit that controls the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element, and performs a control for operating only the electronic correction unit out of the mechanical correction unit and the electronic correction unit in a case where a state where the related amount acquired in the acquisition unit satisfies the operation recommendation condition does not continue for a setting period defined by a time series of a plurality of consecutive times.
2. The shake correction control device according to claim 1 ,
wherein in a case where a state where the related amount acquired in the acquisition unit satisfies the operation recommendation condition continues for the setting period, the operation control unit performs a control for operating only the mechanical correction unit out of the mechanical correction unit and the electronic correction unit.
3. The shake correction control device according to claim 1 , further comprising:
a changing unit that changes the setting period.
4. The shake correction control device according to claim 1 ,
wherein the related amount is an exposure time period of the subject image in the imaging element.
5. The shake correction control device according to claim 4 ,
wherein the operation recommendation condition is a condition that the exposure time period is greater than or equal to a first setting amount.
6. The shake correction control device according to claim 1 ,
wherein the related amount is an amplitude of the shake and a frequency of the shake.
7. The shake correction control device according to claim 6 ,
wherein the operation recommendation condition is a condition that a shake having the amplitude greater than or equal to a second setting amount and the frequency greater than or equal to a third setting amount is present.
8. The shake correction control device according to claim 7 ,
wherein the second setting amount is an amount that is decreased as the frequency is increased.
9. The shake correction control device according to claim 7 ,
wherein the third setting amount is an amount that is decreased as the amplitude is increased.
10. The shake correction control device according to claim 1 ,
wherein the related amount is an amount of the shake within an exposure time period of the subject image in the imaging element.
11. The shake correction control device according to claim 10 ,
wherein the operation recommendation condition is a condition that the amount of the shake is greater than or equal to a fourth setting amount.
12. The shake correction control device according to claim 1 ,
wherein the acquisition unit acquires the related amount for each of consecutive frames.
13. The shake correction control device according to claim 1 ,
wherein the shake correction control device is used in a monitoring camera system.
14. An imaging apparatus comprising:
the shake correction control device according to claim 1 .
15. The shake correction control device according to claim 2 , further comprising:
a changing unit that changes the setting period.
16. The shake correction control device according to claim 2 ,
wherein the related amount is an exposure time period of the subject image in the imaging element.
17. The shake correction control device according to claim 3 ,
wherein the related amount is an exposure time period of the subject image in the imaging element.
18. The shake correction control device according to claim 2 ,
wherein the related amount is an amplitude of the shake and a frequency of the shake.
19. An operation method of a shake correction control device, the operation method comprising:
an acquisition step of acquiring, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended; and
an operation control step of controlling the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element, and performing a control for operating only the electronic correction unit out of the mechanical correction unit and the electronic correction unit in a case where a state where the related amount acquired in the acquisition step satisfies the operation recommendation condition does not continue for a setting period defined by a time series of a plurality of consecutive times.
20. A non-transitory computer-readable storage medium storing an operation program of a shake correction control device causing a computer to function as:
an acquisition unit that acquires, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended; and
an operation control unit that controls the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element, and performs a control for operating only the electronic correction unit out of the mechanical correction unit and the electronic correction unit in a case where a state where the related amount acquired in the acquisition unit satisfies the operation recommendation condition does not continue for a setting period defined by a time series of a plurality of consecutive times.