Imaging apparatus, data extraction method, and data extraction program
First Claim
1. An imaging apparatus, comprising:
- an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal;
a shake detection unit which detects a shake of the apparatus and outputs a shake detection signal;
a shake correction unit which performs camera shake correction by changing relative positions of the imaging element and the optical system based on the shake detection signal from the shake detection unit;
a shake correction necessity determining unit which determines whether the shake correction should be performed by the shake correction unit; and
a control unit which processes an imaging signal read out from a predefined first specific area of the imaging element when the shake correction necessity determining unit determines that the shake correction is to be performed, and which processes an imaging signal read out from a second specific area of the imaging element that is larger than the first specific area and that includes the first specific area when the shake correction necessity determining unit determines that the shake correction is not to be performed.
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Abstract
When a camera shake correction function is set to “on”, a control unit exposes a CCD. Simultaneously during the exposure, the control unit generates a CCD drive signal for changing relative positions of the CCD and a lens in accordance with a shake detection signal received from a pose sensor. In response to this signal, the position of the CCD is shifted in X and Y directions perpendicular to the optical axis of the lens, thereby camera shake correction is performed. Next, the control unit outputs an imaging signal obtained by using the inside of a use range for camera shake correction within the CCD. On the other hand, when the camera shake correction function is set to “off”, the control unit exposes the CCD while the CCD is fixed at a center position. The control unit outputs an imaging signal obtained by using the entire area of the CCD.
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Citations
16 Claims
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1. An imaging apparatus, comprising:
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an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal; a shake detection unit which detects a shake of the apparatus and outputs a shake detection signal; a shake correction unit which performs camera shake correction by changing relative positions of the imaging element and the optical system based on the shake detection signal from the shake detection unit; a shake correction necessity determining unit which determines whether the shake correction should be performed by the shake correction unit; and a control unit which processes an imaging signal read out from a predefined first specific area of the imaging element when the shake correction necessity determining unit determines that the shake correction is to be performed, and which processes an imaging signal read out from a second specific area of the imaging element that is larger than the first specific area and that includes the first specific area when the shake correction necessity determining unit determines that the shake correction is not to be performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A data extraction method, involving use of:
- (i) an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal;
(ii) a shake detection unit which detects a shake of an apparatus housing the shake detection unit and outputs a shake detection signal; and
(iii) a shake correction unit which performs shake correction by changing relative positions of the imaging element and the optical system based on the shake detection signal from the shake detection unit, the method comprising;determining whether the shake correction should be performed by the shake correction unit; and processing an imaging signal read out from a predefined first specific area of the imaging element when it is determined that the shake correction is to be performed, and processing an imaging signal read out from a second specific area of the imaging element that is larger than the first specific area and that includes the first specific area when it is determined that the shake correction is not to be performed.
- (i) an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal;
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16. A computer-readable recording medium having stored thereon a data extraction program for a computer of an imaging apparatus comprising:
- (i) an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal;
(ii) a shake detection unit which detects a shake of the apparatus and outputs a shake detection signal; and
(iii) a shake correction unit which performs shake correction by changing relative positions of the imaging element and the optical system based on the shake detection signal from the shake detection unit, the program controlling the computer to perform functions comprising;determining whether the shake correction should be performed by the shake correction unit; and processing an imaging signal read out from a predefined first specific area of the imaging element when it is determined that the shake correction is to be performed, and processing an imaging signal read out from a second specific area of the imaging element that is larger than the first specific area and that includes the first specific area when it is determined that the shake correction is not to be performed.
- (i) an imaging element which opto-electrically converts an image formed by an optical system and outputs an imaging signal;
Specification