Methods and devices employing optical sensors and/or steganography
First Claim
1. A method comprising:
- presenting an object to an imaging system, the object having formed thereon a machine-readable pattern that encodes a plural symbol payload;
processing image data produced by said imaging system to determine an orientation of the object as viewed by the imaging system;
triggering a first response of a first type if the object is determined to have a first orientation; and
triggering a second response of a second, different, type if the object is determined to have a second orientation.
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Accused Products
Abstract
A wireless phone is equipped with a 2D optical sensor, enabling a variety of applications. For example, such a phone may also be provided with a digital watermark decoder, permitting decoding of steganographic data on imaged objects. Movement of a phone may be inferred by sensing movement of an imaged pattern across the optical sensor'"'"'s field of view, allowing use of the phone as a gestural input device through which a user can signal instructions to a computer-based process. A variety of other arrangements by which electronic devices can interact with the physical world are also detailed, e.g., involving sensing and responding to digital watermarks, bar codes, RFIDs, etc. Other novel arrangements are also detailed.
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Citations
18 Claims
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1. A method comprising:
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presenting an object to an imaging system, the object having formed thereon a machine-readable pattern that encodes a plural symbol payload; processing image data produced by said imaging system to determine an orientation of the object as viewed by the imaging system; triggering a first response of a first type if the object is determined to have a first orientation; and triggering a second response of a second, different, type if the object is determined to have a second orientation. - View Dependent Claims (2, 3, 4)
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5. A method comprising:
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presenting an object to an imaging system, the object having formed thereon a machine-readable pattern that encodes a plural symbol payload; processing image data produced by said imaging system to determine an orientation of the object as viewed by the imaging system; and triggering a response to said object that depends, at least in part, on said orientation; wherein the imaging system comprises a cameraphone.
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- 6. A handheld wireless telephone device including a 2D optical sensor and processing circuitry, the processing circuitry operative to analyze data from the 2D optical sensor to determine information relating to an orientation of a subject imaged thereby.
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14. A handheld device including a 2D optical sensor and processing circuitry, the processing circuitry operative to analyze data from the 2D optical sensor to determine information relating to an orientation of a subject imaged thereby, wherein said processing circuitry is operative to analyze data from the 2D optical sensor, captured over time, to determine a change in said information relating to orientation.
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15. A handheld device including a 2D optical sensor and processing circuitry, the processing circuitry operative to analyze data from the 2D optical sensor to determine information relating to an orientation of a subject imaged thereby, wherein said processing circuitry is operative to analyze data from the 2D optical sensor, captured over time, to determine information relating to a change in scale state.
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16. A handheld device including a 2D optical sensor and processing circuitry, the processing circuitry operative to analyze data from the 2D optical sensor to determine information relating to an orientation of a subject imaged thereby, wherein said processing circuitry is operative to analyze data from the 2D optical sensor, captured over time, to determine a change in said information related to a differential scale state.
- 17. A handheld device including a 2D optical sensor and processing circuitry, the processing circuitry operative to analyze data from the 2D optical sensor to determine information relating to an orientation of a subject imaged thereby, wherein said processing circuitry is operative to analyze data from the 2D optical sensor, captured over time, to determine information relating to a change in rotation state.
Specification