Digital camera with integrated accelerometers
First Claim
1. A sensor unit to a digital camera, said sensor unit comprising a detector which determines static and dynamic accelerations, said detector comprising a first sensor sensitive to acceleration in a first direction, said first sensor providing a first output signal in response to acceleration in the first direction, a second sensor sensitive to acceleration in a second direction, said second sensor providing a second output signal in response to acceleration in the second direction, the second direction being different from the first direction;
- and a processor being adapted to process the first and second output signals, said processor comprising a first filter being adapted to low-pass filter the first and second output signals so as to obtain information relating to static accelerations, and a second filter being adapted to band-pass filter the first and second output signals so as to obtain information relating to dynamic accelerations.
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Accused Products
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.
141 Citations
35 Claims
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1. A sensor unit to a digital camera, said sensor unit comprising
a detector which determines static and dynamic accelerations, said detector comprising a first sensor sensitive to acceleration in a first direction, said first sensor providing a first output signal in response to acceleration in the first direction, a second sensor sensitive to acceleration in a second direction, said second sensor providing a second output signal in response to acceleration in the second direction, the second direction being different from the first direction; - and
a processor being adapted to process the first and second output signals, said processor comprising a first filter being adapted to low-pass filter the first and second output signals so as to obtain information relating to static accelerations, and a second filter being adapted to band-pass filter the first and second output signals so as to obtain information relating to dynamic accelerations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 17, 18, 20, 21, 22, 23, 26, 27, 28)
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12. A method of determining static and dynamic accelerations in a digital camera, said method comprising:
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providing a first sensor sensitive to acceleration in a first direction, said first sensor being adapted to provide a first output signal in response to acceleration in the first direction, providing a second sensor sensitive to acceleration in a second direction, said second sensor being adapted to provide a second output signal in response to acceleration in the second direction, the second direction being different from the first direction, low-pass filtering the first and second output signals so as to obtain information relating to static accelerations, and band-pass filtering the first and second output signals so as to obtain information relating to dynamic accelerations. - View Dependent Claims (16)
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19. A digital camera comprising
an image recording device, said image recording device comprising a plurality of light sensitive elements; -
a first translator which translates the image recording device in a first direction in response to a first input signal; and
a sensor unit comprising a detector which determines static and dynamic accelerations, said detector comprising a first sensor sensitive to acceleration in a first direction, said first sensor providing a first output signal in response to acceleration in the first direction, a second sensor sensitive to acceleration in a second direction, said second sensor providing a second output signal in response to acceleration in the second direction, the second direction being different from the first direction; and
a processor being adapted to process the first and second output signals, said processor comprising a first filter being adapted to low-pass filter the first and second output signals so as to obtain information relating to static accelerations, and a second filter being adapted to band-pass filter the first and second output signals so as to obtain information relating to dynamic accelerations, wherein the band-pass filtered first output signal from the first sensor is provided as the first input signal to the first translator so as to compensate for determined dynamic accelerations in the first direction.
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24. A method of processing image data, said method comprising:
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providing image data, said image data being stored in memory;
determining information relating to static accelerations said determining including providing a first sensor sensitive to acceleration in a first direction, said first sensor being adapted to provide a first output signal in response to acceleration in the first direction, providing a second sensor sensitive to acceleration in a second direction, said second sensor being adapted to provide a second output signal in response to acceleration in the second direction, the second direction being different from the first direction, and low-pass filtering the first and second output signals so as to obtain information relating to static accelerations, said information being recorded and stored with the image data, and correcting the image data in accordance with the information relating to static accelerations so as to correct the image data and reduce the influence of roll and pitch. - View Dependent Claims (32, 33, 35)
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25. A method of displaying a recorded image with a predetermined orientation, said method comprising:
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providing information relating to the degree of roll of the recorded image, said information being provided by first and second sensors sensitive to accelerations in a first and a second direction, respectively, the second direction being different from the first direction, and using the provided information to determine the orientation by which the recorded image is to be displayed and/or stored. - View Dependent Claims (34)
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29. A method of correcting image data during recording of an image of an object, said method comprising:
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recording image data of the object by projecting the object onto an array of light sensitive elements, said recorded image data being generated as electrical charges in the array of light sensitive elements, providing information relating to time dependent movements of the array of light sensitive elements relative to the object, and correcting the recorded image data in accordance with the provided information relating to movements of the array of light sensitive elements relative to the object by moving charges (pixels) in the array of light sensitive elements so as to correct for relative movements between the array of light sensitive elements and the image of the object.
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30. A method of correcting image data during recording of an image of an object, said method comprising:
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recording image data of the object by projecting an image of the object onto an array of light sensitive elements, providing information relating to time dependent movements of the array of light sensitive elements relative to the image of the object, and correcting the recorded image data in accordance with the provided information relating to movements of the array of light sensitive elements relative to the image of the object by counter moving the array of light sensitive elements so as to compensate for the time dependent movements.
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31. A method of reducing Moiré
- image defects without full reduction in sharpness, said method comprising the steps of
providing an array of light sensitive elements, recording an image of an object using the array of light sensitive elements, said image being affected by movements of the array of light sensitive elements relative to the object so that the recorded image appears to be blurred and without Moiré
defects,providing information relating to time dependent movements of the array of light sensitive elements relative to the object during the time of exposure, and using the provided information as an input to an image processing algorithm so as to reduce Moiré
image defects in the recorded image and thereby obtain a modified image with increased sharpness.
- image defects without full reduction in sharpness, said method comprising the steps of
Specification