Control apparatus, lens apparatus, image pickup apparatus, image pickup system, control method, and a non-transitory computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-12452534-B2
Application number	US-202218148210-A
Country	US
Kind code	B2
Filing date	Dec 29, 2022
Priority date	Jan 1, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A control apparatus, which controls an image pickup system including a first apparatus that is one of an image pickup apparatus and a lens apparatus and a second apparatus that is the other, includes an acquisition unit configured to acquire first information on a first image stabilizing remaining amount at an off-axis image height according to correction by a first image shake corrector provided in the first apparatus and second information on a second image stabilizing remaining amount at the off-axis image height according to correction by a second image shake corrector provided in the second apparatus, and a control unit configured to control at least one of the first image shake corrector and the second image shake corrector on the basis of correction ratios of the first image shake corrector and the second image shake corrector determined using the first information and the second information.

First claim

What is claimed is:

1. A control apparatus configured to control an image pickup system including a first apparatus that is one of an image pickup apparatus and a lens apparatus to be attached to the image pickup apparatus and a second apparatus that is the other of the image pickup apparatus and the lens apparatus, the control apparatus comprising:
a processor; and
a memory storing a program that, when executed by the processor, causes the processor to function as:
an acquisition unit configured to acquire first information about a first image stabilizing remaining amount at an off-axis image height in an image according to correction by a first image shake corrector provided in the first apparatus and second information about a second image stabilizing remaining amount at the off-axis image height according to correction by a second image shake corrector provided in the second apparatus; and
a control unit configured to control at least one of the first image shake corrector and the second image shake corrector on the basis of correction ratios of the first image shake corrector and the second image shake corrector determined using the first information and the second information.

2. The control apparatus according to claim 1 , wherein when the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount, the control unit controls the first image shake corrector.

3. The control apparatus according to claim 1 ,
wherein when the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount and a shake amount applied to the first apparatus is equal to or less than a threshold value, the control unit controls the first image shake corrector on the basis of the shake amount, and
wherein when the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount and the shake amount is larger than the threshold value, the control unit controls the first image shake corrector and the second image shake corrector on the basis of the shake amount.

4. The control apparatus according to claim 3 , wherein when the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount and the shake amount is larger than the threshold value, the control unit controls the first image shake corrector to correct an image shake amount corresponding to the threshold value, and controls the second image shake corrector to correct an image shake amount corresponding to a difference between the shake amount and the image shake amount corresponding to the threshold value.

5. The control apparatus according to claim 3 , wherein when the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount and the shake amount is larger than the threshold value, the control unit determines the correction ratios so that the first image shake corrector and the second image shake corrector correct an image shake amount smaller than an image shake amount corresponding to the threshold value.

6. The control apparatus according to claim 1 ,
wherein the first image stabilizing remaining amount is a remaining amount of image stabilization at the off-axis image height when the first image shake corrector corrects an image shake generated at a center part in the image, and
wherein the second image stabilizing remaining amount is a remaining amount of image stabilization at the off-axis image height when the second image shake corrector corrects the image shake generated at the center part.

7. The control apparatus according to claim 1 , wherein the first information includes first image stabilizing remaining amounts corresponding to each of a plurality of off-axis image heights.

8. The control apparatus according to claim 1 , wherein the second information includes second image stabilizing remaining amounts corresponding to each of a plurality of off-axis image heights.

9. The control apparatus according to claim 1 , wherein the first information includes a coefficient on the first image stabilizing remaining amount.

10. The control apparatus according to claim 1 , wherein the second information includes a coefficient on the second image stabilizing remaining amount.

11. The control apparatus according to claim 1 , wherein when the first image stabilizing remaining amount and the second image stabilizing remaining amount have the same sign and the first image stabilizing remaining amount is smaller than the second image stabilizing remaining amount, the control unit drives the first image shake corrector in a direction to perform image stabilization and drives the second image shake corrector in a direction opposite to the direction to perform image stabilization.

12. The control apparatus according to claim 1 , wherein the control unit controls at least one of the first image shake corrector and the second image shake corrector so that an image stabilizing remaining amount in the image becomes smaller than a predetermined amount.

13. The control apparatus according to claim 1 , wherein the control unit controls the first image shake corrector so that a difference between an image stabilizing remaining amount at a center part in the image and an image stabilizing remaining amount at the off-axis image height in the image becomes smaller and controls the second image shake corrector to correct an image stabilizing remaining amount according to the correction by the first image shake corrector.

14. The control apparatus according to claim 13 , wherein a direction of an image shake generated at the center part and the off-axis image height is in an opposite direction to a direction of an image stabilizing remaining amount at the center part and the off-axis image height according to the correction by the first image shake corrector.

15. The control apparatus according to claim 13 , wherein a direction of an image shake generated at the center part and the off-axis image height is in the same direction as a direction of an image stabilizing remaining amount at the center part and the off-axis image height according to the correction by the first image shake corrector.

16. The control apparatus according to claim 1 , wherein the control unit controls the first image shake corrector so that an image stabilizing remaining amount at a center part in the image is equal to an image stabilizing remaining amount at the off-axis image height in the image and controls the second image shake corrector to correct an image stabilizing remaining amount according to the correction by the first image shake corrector.

Assignees

• Canon Kk

Inventors

• Ino Tomohiro
• Maetaki Satoshi
• Shinzato Yuki
• Tokita Tomoki
• Saito Junichi

Classifications

• H04N23/6811

  based on the image signal · CPC title

• H04N23/685

  performed by mechanical compensation · CPC title

• H04N23/6812

  based on additional sensors, e.g. acceleration sensors · CPC title

• H04N23/663

  for controlling interchangeable camera parts based on electronic image sensor signals · CPC title

• H04N23/687 Primary

  by shifting the lens or sensor position · CPC title