Tracking device, automatic focusing device, and camera
First Claim
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1. A tracking device comprising:
- a light measurement device that measures light from an object and obtains light measurement information of the object;
a focus detection device that performs focus detection of the object and obtains first focus detection information of the object and second focus detection information of the object, the second focus detection information being obtained after the first focus detection information has been obtained; and
a tracking control device that obtains tracking information of the object based on the light measurement information and the first focus detection information, corrects the tracking information based on the second focus detection information, and tracks the object in a field of view based on the corrected tracking information.
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Abstract
A tracking device includes: a light measurement device for light measuring an object; a focus detection device for performing focus detection of the object by an optical system; and a tracking control device for tracking the object based on light measurement information from the light measurement device and focus detection information from the focus detection device corresponding to the light measurement information.
22 Citations
26 Claims
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1. A tracking device comprising:
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a light measurement device that measures light from an object and obtains light measurement information of the object; a focus detection device that performs focus detection of the object and obtains first focus detection information of the object and second focus detection information of the object, the second focus detection information being obtained after the first focus detection information has been obtained; and a tracking control device that obtains tracking information of the object based on the light measurement information and the first focus detection information, corrects the tracking information based on the second focus detection information, and tracks the object in a field of view based on the corrected tracking information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An automatic focusing device that controls a focus adjustment optical system comprising:
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a tracking device comprising; a light measurement device that measures light from an object and obtains light measurement information of the object; a focus detection device that performs focus detection of the object and obtains first focus detection information of the object and second focus detection information of the object, the second focus detection information being obtained after the first focus detection information has been obtained; and a tracking control device that obtains tracking information of the object based on the light measurement information and the first focus detection information, corrects the tracking information based on the second focus detection information, and tracks the object in a field of view based on the corrected tracking information; and a focus control device that obtains a driving amount of the focus adjustment optical system based on the second focus detection information. - View Dependent Claims (13, 14, 15)
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16. A camera comprising:
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a tracking device comprising; a light measurement device that measures light from an object and obtains light measurement information of the object; a focus detection device that performs focus detection of the object and obtains first focus detection information of the object and second focus detection information of the object, the second focus detection information being obtained after the first focus detection information has been obtained; and a tracking control device that obtains tracking information of the object based on the light measurement information and the first focus detection information, corrects the tracking information based on the second focus detection information, and tracks the object in a field of view based on the corrected tracking information; and a focus control device that obtains a driving amount of a focus adjustment optical system based on the second focus detection information. - View Dependent Claims (17, 18)
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19. A tracking method comprising:
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measuring light from an object and obtaining light measurement information of the object; performing focus detection of the object and obtaining first focus detection information of the object; obtaining tracking information of the object based on the light measurement information and the first focus detection information; performing focus detection of the object and obtaining second focus detection information, the second focus detection information being obtained after the first focus detection information has been obtained; correcting the tracking information based on the second focus detection information; and tracking the object in a field of view based on the corrected tracking information. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification