US5734933A
Expired / Lapsed
US
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Image shake detecting device
Assignee: Canon Inc
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Filing: 1996-08-30
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Granted: 1998-03-31
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Expires: 2016-08-30
Abstract
Abstract An image shake detecting device for detecting a shake of an image on an image sensing plane on the basis of a video signal output from an image sensor includes detection circuits arranged to detect image displacement in a plurality of areas set on the image sensing plane, and a control microcomputer which makes a discrimination, on the basis of information output from these detection circuits, between a movement of a camera and a solo movement of a photographed object. The device thus accurately makes compensation for an image shake by judging the state of the image on the basis of information output from these detection circuits. The image shake detecting device further includes a computing circuit arranged to compute a quantity of an image shake on the basis of a difference in detecting timing of a feature point of the image and a sensitivity control circuit arranged to change the detection sensitivity of the shake detection circuits. Further disclosed is an object tracing device to which the invented image shake detecting device is applied.
Inventors
- 👤 Masayoshi Sekine
- 👤 Toshiyuki Nakajima
- 👤 Takashi Kai
- 👤 Katsuji Yoshimura
- 👤 Masamichi Toyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:51
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/60; H04N23/68; H04N23/682; H04N23/685; H04N23/686; G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/785; G01S3/786; G01S3/7864; G06; G06T; G06T7/00; G06T7/20; G06T7/223; H04N23/61; H04N23/67; H04N23/673; H04N23/681; H04N23/6811; H04N23/6815; H04N23/687; H04N5/00; H04N5/14; H04N5/144; H04N5/145; G03; G03B; G03B2217/00; G03B2217/005; G06T2207/00; G06T2207/10; G06T2207/10016
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
68 words
An image pick-up apparatus, comprising: (a) image sensing means for sensing an image and outputting an image signal corresponding to the image; (b) detecting means for detecting a movement of the image; (c) variable angle prism for optically varying a direction of image pick-up operation; and (d) tracing means for tracing the image by controlling said variable angle prism so as to cancel the movement of the image.
Claim 2
Dependent Claim
68 words
An image pick-up apparatus, comprising: (a) image sensing means for sensing an image and outputting an image signal corresponding to the image; (b) detecting means for detecting a movement of the image; (c) variable angle prism for optically varying a direction of image pick-up operation; and (d) tracing means for tracing the image by controlling said variable angle prism so as to cancel the movement of the image.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, wherein said detecting means detects a movement vector from the image signal output from said image sensing means.
Claim 4
Dependent Claim
25 words
An apparatus according to claim 2, wherein said tracing means drive said variable angle prism in a direction in which movement vector should be canceled.
Claim 5
Dependent Claim
26 words
An apparatus according to claim 3, further comprising, an image taking lens, wherein said variable angle prism is arranged in front of said image taking lens.
Claim 6
Dependent Claim
36 words
An apparatus according to claim 2, wherein said detecting means detects the movement vector from the image signal corresponding to a predetermined area at a center of an image sensing plane of said image sensing means.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 1, further comprising, recording means for recording the image signal output from said image sensing means.
Claim 8
Dependent Claim
13 words
An apparatus according to claim 6, wherein said recording means is a VTR.
Claim 9
Dependent Claim
80 words
An image tracing apparatus, comprising: (a) image sensor for sensing an image and outputting an image signal corresponding to the image; (b) detecting means for detecting a movement of the image every predetermined period of time; (c) variable angle optical means for optically varying a direction of an image sensing operation of said image sensor; and (d) image tracing means for tracing the image by controlling said variable angle optical means so as to cancel the movement of the image.
Claim 10
Dependent Claim
80 words
An image tracing apparatus, comprising: (a) image sensor for sensing an image and outputting an image signal corresponding to the image; (b) detecting means for detecting a movement of the image every predetermined period of time; (c) variable angle optical means for optically varying a direction of an image sensing operation of said image sensor; and (d) image tracing means for tracing the image by controlling said variable angle optical means so as to cancel the movement of the image.
Claim 11
Dependent Claim
21 words
An apparatus according to claim 8, wherein said detecting means detects the movement of the image in a period of V-sync.
Claim 12
Dependent Claim
35 words
An apparatus according to claim 6, wherein said detecting means detects the movement vector from the image signal corresponding to a predetermined area at a center of an image sensing plane of said image sensor.
Claim 13
Dependent Claim
26 words
An apparatus according to claim 10, wherein said tracing means drive said variable angle prism in a direction in which the movement vector should be canceled.
Claim 14
Dependent Claim
126 words
A video recorder including an image tracing device, comprising: (a) image taking lens means; (b) image sensor for sensing an image formed on an image sensing plane through said image taking lens means and outputting an image signal corresponding to the image; (c) detecting means for detecting a movement of the image every predetermined period of time; (d) variable angle optical means arranged in said image taking lens means for optically varying a direction of an image sensing operation of said image sensor; and (e) image tracing means for tracing the image by controlling said variable angle optical means so as to cancel the movement of the image; and (f) recording means for recording the image which is cancelled the movement thereof on a recording medium.
Claim 15
Dependent Claim
126 words
A video recorder including an image tracing device, comprising: (a) image taking lens means; (b) image sensor for sensing an image formed on an image sensing plane through said image taking lens means and outputting an image signal corresponding to the image; (c) detecting means for detecting a movement of the image every predetermined period of time; (d) variable angle optical means arranged in said image taking lens means for optically varying a direction of an image sensing operation of said image sensor; and (e) image tracing means for tracing the image by controlling said variable angle optical means so as to cancel the movement of the image; and (f) recording means for recording the image which is cancelled the movement thereof on a recording medium.
Claim 16
Dependent Claim
24 words
An apparatus according to claim 12, wherein said detecting means detects a movement vector from the image signal output from said image sensing means.
Claim 17
Dependent Claim
26 words
An apparatus according to claim 13, wherein said tracing means drive said variable angle prism in a direction in which the movement vector should be canceled.
Claim 18
Dependent Claim
22 words
An apparatus according to claim 12, wherein said variable angle optical means is arranged in front of said image taking lens means.
Claim 19
Dependent Claim
41 words
An apparatus according to claim 14, wherein said detecting means in a predetermined period of time, detects a movement vector from the image signal corresponding to a predetermined area at a center of an image sensing plane of said image sensor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-03-30 | 2001-09-29 | 2002-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-30 | 2005-09-29 | 2006-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-30 | 2009-09-29 | 2010-03-31 | $7700.00 | Window Closed / Lapsed |