Image-shake correction apparatus

• US 7,932,924 B2
• Filed: 06/21/2006
• Issued: 04/26/2011
• Est. Priority Date: 07/05/2005
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujinon Corporation (Fujifilm Holdings Corporation)
• Inventors: Higo, Akira
• Primary Examiner(s): Chan; Jason
• Assistant Examiner(s): KHAN, USMAN A
• Application Number:
  US11/471,677
• Publication Number:
  US 20070008415A1
• Time in Patent Office: 1,770 Days
• Field of Search: 348/208.11
• US Class Current: 348/208.11
• CPC Class Codes: G03B 2205/0015 by displacing one or more optical elements normal to the optical axis
• CPC Class Codes: G03B 2217/005 Blur detection
• CPC Class Codes: G03B 2217/185 providing indication that the picture may be blurred
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/6812 based on additional sensors, e.g. acceleration sensors
• CPC Class Codes: H04N 23/687 by shifting the lens or sensor position
• CPC Class Codes: H04N 5/2224 related to virtual studio applications
• CPC Class Codes: H04N 5/272 Means for inserting a foreground image in a background image, i.e. inlay, outlay

Abstract

The present invention provides an image-shake correction apparatus comprising: an image displacement device that displaces on an image forming plane an image formed by an image-capturing optical system; an image-shake correction device that displaces an image by use of the image displacement device in such a way as to cancel an image shake due to a vibration exerted on the image-capturing optical system; and an output device that outputs to a predetermined external apparatus information on image displacement by the image displacement device, in order to prevent the occurrence of defects due to image-shake correction, information on the image-shake correction can be supplied to an external apparatus that obtains capturing conditions of a camera and implements predetermined processing.

Claims

1. An image-shake correction apparatus comprising:

an image displacement device that displaces on an image forming plane an image formed by an image-capturing optical system;

an image-shake correction device that displaces an image by use of the image displacement device in such a way as to cancel an image shake due to a vibration exerted on the image-capturing optical system; and

an output device that outputs to a predetermined external apparatus information on image displacement by the image displacement device, wherein

the output device outputs the information to an image creation apparatus, as the external apparatus, that creates a second video image to be synthesized with a first video image obtained by capturing an image formed by the image-capturing optical system, wherein the image creation apparatus creates the second video image based on the information on image displacement output by the output device, the external device is a separate device external to the image-capturing optical system,

the second video image is of a virtual space captured by a virtual camera, and

the first video image is an actually captured video image captured by the image-capturing optical system.

2. The image-shake correction apparatus according to claim 1, wherein

the output device includes a connector for connecting the image-shake correction apparatus with the external apparatus, by use of a cable.

3. The image-shake correction apparatus according to claim 1, wherein

the output device outputs the information to the external apparatus, by use of an analogue signal.

4. The image-shake correction apparatus according to claim 2, wherein

the output device outputs the information to the external apparatus, by use of an analogue signal.

5. The image-shake correction apparatus according to claim 1, wherein

the output device outputs the information to the external apparatus, by use of a digital signal.

6. The image-shake correction apparatus according to claim 2, wherein

the output device outputs the information to the external apparatus, by use of a digital signal.

7. The image-shake correction apparatus according to claim 1, wherein

the output device outputs a value corresponding to an amount of image displacement by the image displacement device.

8. The image-shake correction apparatus according to claim 2, wherein

the output device outputs a value corresponding to an amount of image displacement by the image displacement device.

9. The image-shake correction apparatus according to claim 3, wherein

the output device outputs a value corresponding to an amount of image displacement by the image displacement device.

10. The image-shake correction apparatus according to claim 5, wherein

the output device outputs a value corresponding to an amount of image displacement by the image displacement device.

11. The image-shake correction apparatus according to claim 1, wherein

the image-shake correction apparatus is integrated in a lens unit including the image-capturing optical system or mounted, as an auxiliary device, outside the lens unit.

12. The image-shake correction apparatus according to claim 1, wherein

the image displacement device displaces an image, by displacing a correction lens that, in the image-capturing optical system, is arranged movably in directions perpendicular to the optical axis.

13. The image-shake correction apparatus according to claim 12, wherein

the output device outputs, as information on image displacement by the image displacement device, a value based on a detected position obtained by a detection device that detects the position of the correction lens or a predetermined target position in the case where the correction lens is moved to the target position.

14. The image-shake correction apparatus according to claim 13, wherein

the output device outputs a value indicating the detected position or the target position of the correction lens.

15. The image-shake correction apparatus according to claim 1, wherein the image creation apparatus creates the second video image such that capturing conditions for the virtual camera are compensated according to the information on image displacement.