Method and apparatus for image sensing

• US 7,518,635 B2
• Filed: 03/17/2005
• Issued: 04/14/2009
• Est. Priority Date: 02/24/1998
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Kawahara, Hideo, Yasuda, Hitoshi
• Primary Examiner(s): Ometz; David L
• Assistant Examiner(s): PRABHAKHER, PRITHAM DAVID
• Application Number:
  US11/081,775
• Publication Number:
  US 20050157181A1
• Time in Patent Office: 1,489 Days
• Field of Search: 348/208.99, 348/208.1, 3482082-2084
• US Class Current: 348/208.6
• CPC Class Codes: H04N 23/667 Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
• 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 23/6815 by distinguishing pan or tilt from motion
• CPC Class Codes: H04N 23/6842 by controlling the scanning position, e.g. windowing

Abstract

A correction variable is calculated based on vibration data of an image sensing apparatus. Based on the calculation result, timing of reading image signals from an image sensing device is controlled. The read image signals are delayed by predetermined time, the read image signals and the delayed image signals are added at a predetermined addition ratio based on the calculation result of the correction variable calculator. In still image sensing, the above addition operation is not performed.

Claims

1. An image sensing method comprising:

a vibration detecting step of detecting vibration of an image sensing apparatus main body;

a calculating step of calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting step;

a control step of controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating step;

an adding step of adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating step, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position;

an addition control step of activating said adding step in a moving image recording mode and of inactivating said adding step in a still image recording mode.

2. An image sensing method comprising:

a vibration detecting step of detecting vibration of an image sensing apparatus main body;

a calculating step of calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting step;

a control step of controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating step;

an adding step of, in a moving image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating step, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, in a still image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.

3. An image sensing apparatus comprising:

vibration detecting means for detecting vibration of an image sensing apparatus main body;

calculating means for calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting step;

control means for controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating means;

adding means for adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating means, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position;

an addition control means for activating said adding step in a moving image recording mode and of inactivating said adding means in a still image recording mode.

4. An image sensing apparatus comprising:

a vibration detecting means for detecting vibration of an image sensing apparatus main body;

a calculating means for calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting means;

a control means for controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating means;

an adding means for, in a moving image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating means, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, in a still image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.

5. A recording medium storing a control program for controlling an image sensing apparatus, said control program having control modules comprising the steps of:

detecting vibration of an image sensing apparatus main body;

calculating a correction variable based on vibration data indicative of the detected vibration of the image sensing apparatus main body;

controlling a timing of reading an image signal from an image sensing device based on a calculation result;

adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio based on the calculation result, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel data;

activating a moving image recording mode and inactivating a still image recording mode.

6. A recording medium storing a control program for controlling an image sensing apparatus, said control program having control modules comprising the steps of:

detecting vibration of an image sensing apparatus main body;

calculating a correction variable based on vibration data indicative of the detected vibration of the image sensing apparatus main body;

controlling a timing of reading an image signal from an image sensing device based on a calculating result;

in a moving image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio based on the calculation result, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, in a still image recording mode, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.

7. An image sensing method comprising:

a vibration detecting step of detecting vibration of an image sensing apparatus main body;

a calculating step of calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting step;

a control step of controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating step;

an adding step of adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating step, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position;

an addition control step of activating said adding step when a moving image is recorded and of inactivating said adding step when a still image is recorded.

8. An image sensing method comprising:

a vibration detecting step of detecting vibration of an image sensing apparatus main body;

a calculating step of calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting step;

a control step of controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating step;

an adding step of, when a moving image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating step, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, when a still image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.

9. An image sensing apparatus comprising:

vibration detecting means for detecting vibration of an image sensing apparatus main body;

calculating means for calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting means;

control means for controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating means;

adding means for adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating means, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position;

an addition control means for activating said adding step when a moving image is recorded and of inactivating said adding means when a still image is recorded.

10. An image sensing apparatus comprising:

a vibration detecting means for detecting vibration of an image sensing apparatus main body;

a calculating means for calculating a correction variable based on vibration data indicative of the vibration of the image sensing apparatus main body detected in said vibration detecting means;

a control means for controlling a timing of reading an image signal from an image sensing device based on a calculating result of said calculating means;

an adding means for, when a moving image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio which is determined based on the calculating result of said calculating means, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, when a still image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.

11. A recording medium storing a control program for controlling an image sensing apparatus, said control program having control modules comprising the steps of:

detecting vibration of an image sensing apparatus main body;

calculating a correction variable based on vibration data indicative of the detected vibration of the image sensing apparatus main body;

controlling a timing of reading an image signal from an image sensing device based on a calculation result;

adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio based on the calculation result, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel data;

starting recording of a moving image.

12. A recording medium storing a control program for controlling an image sensing apparatus, said control program having control modules comprising the steps of:

detecting vibration of an image sensing apparatus main body;

calculating a correction variable based on vibration data indicative of the detected vibration of the image sensing apparatus main body;

controlling a timing of reading an image signal from an image sensing device based on a calculating result;

when a moving image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a predetermined addition ratio based on the calculation result, to obtain an interpolated pixel data for an arbitrary position between the neighboring first and second pixel position, and, when a still image is recorded, adding first pixel data in the read image signal to second pixel data neighboring said first pixel data in accordance with a fixed addition ratio 1;

0.