Digital camera with integrated accelerometers
First Claim
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1. A method of displaying an image recorded by a digital camera system with a predetermined orientation, said method comprising:
- providing a first accelerometer integrated on a monolithic chip in the digital camera system, the first accelerometer being sensitive to acceleration in a first direction, said first accelerometer being adapted to provide a first output signal in response to acceleration in the first direction;
providing a second accelerometer integrated on a monolithic chip in the digital camera system, the second accelerometer being sensitive to acceleration in a second direction different from the first direction, said second accelerometer being adapted to provide a second output signal in response to acceleration in the second direction;
low-pass filtering the first and second output signals to obtain information relating to static accelerations;
using the information relating to static accelerations to obtain information identifying a roll angle of the recorded image; and
using the roll angle information to determine an orientation by which the recorded image is to be displayed, the orientation comprises portrait and landscape orientations, where said determining the orientation by which the recorded image is to be displayed comprises using hysteresis on the roll angle identification to prevent unintended switching between the portrait orientation and the landscape orientation.
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Abstract
A digital camera system has integrated accelerometers for determining static and dynamic accelerations of the digital camera system. Data relating to static and dynamic accelerations are stored with recorded image data for further processing, such as for correcting image data for roll, pitch and vibrations and for displaying recorded images with a predetermined orientation using information about, e.g., roll. Data may also be used on-the-fly for smear suppression caused by vibrations.
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Citations
20 Claims
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1. A method of displaying an image recorded by a digital camera system with a predetermined orientation, said method comprising:
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providing a first accelerometer integrated on a monolithic chip in the digital camera system, the first accelerometer being sensitive to acceleration in a first direction, said first accelerometer being adapted to provide a first output signal in response to acceleration in the first direction; providing a second accelerometer integrated on a monolithic chip in the digital camera system, the second accelerometer being sensitive to acceleration in a second direction different from the first direction, said second accelerometer being adapted to provide a second output signal in response to acceleration in the second direction; low-pass filtering the first and second output signals to obtain information relating to static accelerations; using the information relating to static accelerations to obtain information identifying a roll angle of the recorded image; and using the roll angle information to determine an orientation by which the recorded image is to be displayed, the orientation comprises portrait and landscape orientations, where said determining the orientation by which the recorded image is to be displayed comprises using hysteresis on the roll angle identification to prevent unintended switching between the portrait orientation and the landscape orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of recording images using a camera system, comprising:
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providing a first accelerometer integrated on a monolithic chip in the camera system, the first accelerometer being sensitive to acceleration in a first direction, said first accelerometer being adapted to provide a first output signal in response to acceleration in the first direction; providing a second accelerometer integrated on a monolithic chip in the camera system, the second accelerometer being sensitive to acceleration in a second direction different from the first direction, said second accelerometer being adapted to provide a second output signal in response to acceleration in the second direction; low-pass filtering the first and second output signals to obtain information relating to static accelerations; using the information relating to static accelerations to obtain information identifying a roll angle during recording; and using the roll angle information to determine an orientation by which a recorded image is to be displayed by use of hysteresis on the roll angle identification to prevent unintended switching between a portrait orientation and a landscape orientation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of storing an image recorded by a digital camera system with a predetermined orientation, said method comprising:
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providing a first accelerometer integrated on a monolithic chip in the digital camera system, the first accelerometer being sensitive to acceleration in a first direction, said first accelerometer being adapted to provide a first output signal in response to acceleration in the first direction; providing a second accelerometer integrated on a monolithic chip in the digital camera system, the second accelerometer being sensitive to acceleration in a second direction different from the first direction, said second accelerometer being adapted to provide a second output signal in response to acceleration in the second direction; low-pass filtering the first and second output signals to obtain information relating to static accelerations; using the information relating to static accelerations to obtain information identifying a roll angle of the recorded image; and using the roll angle information to determine an orientation by which the recorded image is to be stored, the orientation comprises portrait and landscape orientations, where said determining the orientation by which the recorded image is to be stored comprises using hysteresis on the roll angle identification to prevent unintended switching between the portrait orientation and the landscape orientation.
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20. A method of recording images using a camera system, comprising:
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providing a first accelerometer integrated on a monolithic chip in the camera system, the first accelerometer being sensitive to acceleration in a first direction, said first accelerometer being adapted to provide a first output signal in response to acceleration in the first direction; providing a second accelerometer integrated on a monolithic chip in the camera system, the second accelerometer being sensitive to acceleration in a second direction different from the first direction, said second accelerometer being adapted to provide a second output signal in response to acceleration in the second direction; low-pass filtering the first and second output signals so as to obtain information relating to static accelerations; using the information relating to static accelerations to obtain information identifying a roll angle during recording; and using the roll angle information to determine an orientation by which a recorded image is to be stored by use of hysteresis on the roll angle identification to prevent unintended switching between the portrait orientation and the landscape orientation.
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Specification