AUTOMATIC-TRACKING CAMERA APPARATUS
First Claim
1. An automatic-tracking apparatus comprising:
- an image pickup unit adapted to acquire an image;
an actuator adapted to change a position of said image pickup unit;
a position detecting unit adapted to detect the position of said image pickup unit;
a position instruction value generation unit adapted to generate a position instruction value, for instructing a target position of said image pickup unit, realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, on the basis of the image acquired by said image pickup unit and the position of said image pickup unit detected by said position detecting unit;
a speed prediction unit adapted to predict a speed of a tracking target object realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image; and
a control unit adapted to control said actuator so that said image pickup unit reaches the position indicated by the position instruction value realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, and the speed of said image pickup unit realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image corresponds to the speed predicted by said speed prediction unit.
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Abstract
An automatic-tracking camera apparatus which is capable of realizing continuous and smooth driving and obtaining an image with little position variation of a tracking target from a target position within the image and with little blur. The position of a camera body is changed by a gimbal device. The speed of a tracking target object at the next-after-next start timing of image acquisition by the camera body is predicted. The gimbal device is controlled so that the camera body reaches the position indicated by a position instruction value generated for the next-after-next start timing of image acquisition by the camera body, at the next-after-next start timing, and the speed of the camera body at the next-after-next start timing of image acquisition by the camera body corresponds to the speed predicted for the next-after-next timing of image acquisition.
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Citations
11 Claims
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1. An automatic-tracking apparatus comprising:
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an image pickup unit adapted to acquire an image; an actuator adapted to change a position of said image pickup unit; a position detecting unit adapted to detect the position of said image pickup unit; a position instruction value generation unit adapted to generate a position instruction value, for instructing a target position of said image pickup unit, realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, on the basis of the image acquired by said image pickup unit and the position of said image pickup unit detected by said position detecting unit; a speed prediction unit adapted to predict a speed of a tracking target object realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image; and a control unit adapted to control said actuator so that said image pickup unit reaches the position indicated by the position instruction value realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, and the speed of said image pickup unit realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image corresponds to the speed predicted by said speed prediction unit. - View Dependent Claims (2, 3, 4)
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5. An automatic-tracking for an apparatus having an image pickup unit adapted to acquire an image and an actuator adapted to change the position of said image pickup unit, comprising steps of:
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a position detecting step of detecting the position of said image pickup unit; a position instruction value generation step of generating a position instruction value, for instructing a target position of said image pickup unit, realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, on the basis of the image acquired by said image pickup unit and the position of said image pickup unit; a speed prediction step of predicting a speed of a tracking target object realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image; and a control step of controlling said actuator so that said image pickup unit reaches the position indicated by the position instruction value realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image, and the speed of said image pickup unit realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image corresponds to the predicted speed. - View Dependent Claims (6, 7, 8, 9)
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10. An automatic-tracking apparatus comprising:
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an image pickup unit adapted to acquire an image; an actuator adapted to change a position of said image pickup unit; a position detecting unit adapted to detect the position of said image pickup unit; and a control unit adapted to predict a speed of a tracking target object realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image and control said actuator so that said image pickup unit reaches the speed of said image pickup unit realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image corresponds to the predicted speed.
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11. An automatic-tracking method for an apparatus having an image pickup unit adapted to acquire an image and an actuator adapted to change the position of said image pickup unit, comprising steps of:
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a position detecting step of detecting the position of said image pickup unit; and a control step of predicting a speed of a tracking target object realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image and controlling said actuator so that said image pickup unit reaches the speed of said image pickup unit realizing after a lapse of a predetermined time period after said image pickup unit has acquired the image corresponds to the predicted speed.
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Specification