Image pickup apparatus for storing, reading-out and processing a signal during predetermined time periods
First Claim
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1. An image pickup apparatus comprising:
- vibration detection means for detecting vibration of a device;
motion detection means for detecting image motion from an image signal;
vibration correction means for correcting vibration of an image in accordance with one or both of output signals from said vibration detection means and said motion detection means;
signal processing means for calculating a correction target value to be supplied to said vibration correction means on the basis of a motion vector signal detected by said motion detection means; and
sampling period varying means for setting a sampling period of the correction target value calculated by said signal processing means to be shorter than a sampling period of the motion vector signal.
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Abstract
In a vibration correction apparatus for attaining vibration correction on the basis of motion information obtained by adding vibrations detected by an angular velocity sensor and vibrations detected from an image signal, the motion correction period based on the vibration information detected from the image signal is set to be shorter than the vibration detection period.
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Citations
30 Claims
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1. An image pickup apparatus comprising:
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vibration detection means for detecting vibration of a device;
motion detection means for detecting image motion from an image signal;
vibration correction means for correcting vibration of an image in accordance with one or both of output signals from said vibration detection means and said motion detection means;
signal processing means for calculating a correction target value to be supplied to said vibration correction means on the basis of a motion vector signal detected by said motion detection means; and
sampling period varying means for setting a sampling period of the correction target value calculated by said signal processing means to be shorter than a sampling period of the motion vector signal. - View Dependent Claims (2, 3, 8, 10)
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4. An image pickup apparatus comprising:
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vibration detection means for detecting vibration of a device;
motion detection means for detecting image motion from an image signal;
vibration correction means for correcting vibration of an image in accordance with one or both of output signals from said vibration detection means and said motion detection means;
signal processing means for calculating a correction target value for said vibration correction means on the basis of a motion vector signal detected by said motion detection means; and
sampling period varying means for setting a sampling period of the correction target value calculated by said signal processing means to be shorter than a sampling period of the motion vector signal, wherein a lens unit including said vibration correction means is exchangeably detachable from a camera body. - View Dependent Claims (5, 6, 7, 9)
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11. A lens unit detachable from an image pickup apparatus, comprising:
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vibration detection means for detecting vibration of said image pickup apparatus;
vibration correction means for correcting vibration of an image on the basis of one or both of a motion vector component in an image signal detected on the side of said image pickup apparatus, and an output signal from said vibration detection means;
signal processing means for calculating a correction target value of said vibration correction means on the basis of the motion vector; and
sampling period varying means for setting a sampling period of the correction target value calculated by said signal processing means to be shorter than a sampling period of the motion vector. - View Dependent Claims (12)
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13. A vibration correction apparatus comprising:
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motion vector detection means for detecting a motion vector component in an image signal;
vibration correction means for correcting vibration of an image;
signal processing means for calculating a correction target value for said vibration correction means on the basis of an output from said motion vector detection means; and
sampling period varying means for setting a sampling period of the correction target value output from said signal processing means to be shorter than a sampling period of the motion vector. - View Dependent Claims (14, 15)
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16. An image pickup apparatus comprising:
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an image pickup element;
rewritable storage means;
first signal processing means for processing a video signal from said image pickup element, and writing the processed video signal in said storage means at a first rate;
second signal processing means for reading out the video signal from said storage means at a second rate; and
function control means for controlling a function associated with imaging in accordance with a signal from said first signal processing means, wherein the first rate is set to be higher than the second rate and the first rate is set to be not less than twice higher than the second rate.
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17. A camera comprising:
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optical motion correction means for optically correcting motion of an image;
electronic motion correction means for electronically correcting the motion of the image;
electronic zoom means for electronically enlarging the image; and
control means for, when said electronic zoom means is inactive, controlling to selectively operate said optical motion correction means and said electronic motion correction means, and for, when said electronic zoom means is active, controlling to operate both said optical motion correction means and said electronic motion correction means. - View Dependent Claims (18, 19)
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20. A vibration correction apparatus comprising:
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vibration detection means for detecting vibration of a device as components in two orthogonal directions;
optical vibration correction means for optically correcting vibration of an image in accordance with an output signal from said vibration detection means;
a storage circuit that stores an image input from a solid-state image pickup element;
image motion detection means for detecting motion of an image between fields or frames of the image input to said storage circuit from the solid-state image pickup element; and
storage circuit control means for controlling said storage circuit so as to attain electronic zooming in accordance with a command from system control means, and for controlling reading of an image from said storage circuit in accordance with motion detected by said image motion detection means so as to perform both electronic and optical vibration corrections only during electronic zooming.
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21. An apparatus for correcting image blur on the basis of at least one of a vibration signal physically detected and a motion signal of an object image which is detected from an image signal, said apparatus comprising:
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a calculation device that calculates a correction target value signal used for correcting the image blur, on the basis of the motion signal of the object image detected from the image signal; and
a correction target value supplying device that supplies the correction target value signal calculated by said calculation device to a vibration correction system, wherein a period at which said correction target value supplying device supplies the correction target value signal to the vibration correction system is shorter than a period at which said calculation device acquires the motion signal of the object image. - View Dependent Claims (22, 23, 24, 25, 26)
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27. An apparatus for correcting image blur on the basis of a motion signal of an object image which is detected from an image signal, said apparatus comprising:
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a calculation device that calculates a correction target value signal used for correcting the image blur, on the basis of the motion signal of the object image detected from the image signal; and
a correction target value supplying device that supplies the correction target value signal calculated by said calculation device to a vibration correction system, wherein a period at which said correction target value supplying device supplies the correction target value signal to the vibration correction system is shorter than a period at which said calculation device acquires the motion signal of the object image. - View Dependent Claims (28, 29, 30)
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Specification