Dynamic Autofocus Opertions
First Claim
1. An autofocus method for a digital image capture device having a full number of autofocus points-of-interest and a full autofocus range of motion, the method comprising:
- receiving a signal from a sensor of the digital image capture device;
determining an orientation of the digital image capture device based at least in part on the signal;
determining a current autofocus range of motion based at least in part on the orientation, the current autofocus range of motion being less than the full autofocus range of motion; and
performing an autofocus operation using the current autofocus range of motion and an autofocus mode.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, methods, and computer readable media for dynamically adjusting an image capture device'"'"'s autofocus (AF) operation based, at least in part, on the device'"'"'s orientation are described. In general, information about an image capture device'"'"'s orientation may be used to either increase the speed or improve the resolution of autofocus operations. More particularly, orientation information such as that available from an accelerometer may be used to reduce the number of lens positions (points-of-interest) used during an autofocus operation, thereby improving the operation'"'"'s speed. Alternatively, orientation information may be used to reduce the lens'"'"' range of motion while maintaining the number of points-of-interest, thereby improving the operation'"'"'s resolution.
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Citations
21 Claims
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1. An autofocus method for a digital image capture device having a full number of autofocus points-of-interest and a full autofocus range of motion, the method comprising:
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receiving a signal from a sensor of the digital image capture device; determining an orientation of the digital image capture device based at least in part on the signal; determining a current autofocus range of motion based at least in part on the orientation, the current autofocus range of motion being less than the full autofocus range of motion; and performing an autofocus operation using the current autofocus range of motion and an autofocus mode. - View Dependent Claims (2, 3)
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4. A non-transitory computer readable medium, comprising:
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computer code to receive a signal from a sensor of a digital image capture device, the digital image capture device having a full number of autofocus points-of-interest and a full autofocus range of motion; computer code to determine an orientation of the digital image capture device based at least in part on the signal; computer code to determine a current autofocus range of motion based at least in part on the orientation, the current autofocus range of motion being less than the full autofocus range of motion; and computer code to perform an autofocus operation using the current autofocus range of motion and an autofocus mode. - View Dependent Claims (5)
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6. An autofocus method for a digital image capture device having a full number of autofocus points-of-interest and a full autofocus range of motion, the method comprising:
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receiving a signal from a sensor of the digital image capture device; determining an orientation of the digital image capture device based at least in part on the signal; determining a current autofocus range of motion based at least in part on the orientation, the current autofocus range of motion being less than the full autofocus range of motion; performing an autofocus operation using less than the full number of autofocus points-of-interest and the current autofocus range of motion when the digital image capture device is in a first autofocus mode; and performing an autofocus operation using the full number of autofocus points-of-interest and the current autofocus range of motion when the digital image capture device is in a second autofocus mode. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 19, 20, 21)
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15. A non-transitory computer readable medium, comprising:
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computer code to receive a signal from a sensor of a digital image capture device, the digital image capture device having a full number of autofocus points-of-interest and a full autofocus range of motion; computer code to determine an orientation of the digital image capture device based at least in part on the signal; computer code to determine a current autofocus range of motion based at least in part on the orientation, the current autofocus range of motion being less than the full autofocus range of motion; computer code to perform an autofocus operation using less than the full number of autofocus points-of-interest and the current autofocus range of motion when the digital image capture device is in a first autofocus mode; and computer code to perform an autofocus operation using the full number of autofocus points-of-interest and the current autofocus range of motion when the digital image capture device is in a second autofocus mode. - View Dependent Claims (16, 17, 18)
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Specification