Imaging apparatus controlling blurring correction during switch between image capture mode and playback mode

• US 8,059,156 B2
• Filed: 01/27/2005
• Issued: 11/15/2011
• Est. Priority Date: 02/03/2004
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tsubusaki, Akihiro
• Primary Examiner(s): Chan; Jason
• Assistant Examiner(s): Vieaux; Gary C
• Application Number:
  US11/044,400
• Publication Number:
  US 20050168586A1
• Time in Patent Office: 2,483 Days
• Field of Search: 348/208.12, 348/208.6, 348/208.5, 348/208.4, 348/272, 348/208.7, 348/208.16, 348/345, 348/204.2, 396/52, 396/53, 396/54, 396/55, 396/56
• US Class Current: 348/208.12
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/32496 Changing the task performed, e.g. reading and transmitting, receiving and reproducing, copying facsimile mode changing H04N1/333
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 23/58 Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/687 by shifting the lens or sensor position

Abstract

In an imaging apparatus, a control unit can operate in one of a first mode which corresponds to an image capturing mode and which controls an image-blur correcting unit, and a second mode corresponding to a playback mode. When the image capturing mode is switched to the playback mode, the control unit operates in the first mode during a predetermined time after switching to the playback mode, and then operates in the second mode after the predetermined time period has elapsed. This makes it possible to immediately obtain an anti-shake effect even if the playback mode is switched to the image capturing mode.

Claims

1. An imaging apparatus having an image-capturing mode capable of capturing an image and a playback mode for displaying image data stored in a storage medium and not capable of capturing the image comprising:

a detection unit configured to detect shaking of the imaging apparatus;

a correcting unit configured to correct an image-blur due to shaking detected by the detection unit;

a controlling unit configured to determine a correcting value based on a shake detection result detected by the detection unit and control the correcting unit based on the correcting value in a predetermined driving range; and

a switch configured to switch the image-capturing mode and the playback mode,

wherein, in case where the mode is switched from the image-capturing mode to the playback mode by the switch, the correcting unit is kept on driving within the predetermined driving range until a predetermined time period has elapsed, and the controlling unit controls the correcting unit such that, after the predetermined period of time has elapsed, a driving range of the correcting unit is reduced, without stopping driving of the correcting unit, to a limited driving range compared to the predetermined driving range and the correcting value continues to be applied at a reduced value.

2. The imaging apparatus according to claim 1, wherein the controlling unit further controls the driving of the detection unit, and stops the driving of the detection unit after an elapse of a predetermined period of time from the point where the mode was switched from the image-capturing mode to the playback mode by the switch.

3. The imaging apparatus according to claim 1, wherein the controlling unit limits the driving range of the correction unit so as to lower the power consumption after an elapse of a predetermined period of time from the point where the mode was switched from the image-capturing mode to the playback mode by the switch.

4. The imaging apparatus according to claim 1, wherein the correcting unit comprises a correcting lens configuring a part of a capturing optical system.

5. The imaging apparatus according to claim 1, wherein the correcting unit comprises an image pickup device.