Forensic marking identifying objects
AssigneeHewlett-Packard Development Company, L.P.
InventorsSteven J. Simske, Marie Vans, Stephen Pollard, Guy Adams
Life of this patent
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Abstract
An image is obtained of an identifying object that is on a printed document. A forensic signature is extracted from the image. Access to the extracted forensic signature profile is enabled via information encoded in the identifying object. The identifying object may be interpreted to access the forensic signature for comparison with another.
Claims19
A non-transitory computer readable medium containing instructions that when executed cause a processor to execute the steps of:
- obtaining an image of an identifying object that is on a printed document;
- extracting a forensic signature from the image of the identifying object;
- enabling access to a representation of the extracted forensic signature via information encoded in the identifying object;
- and
- wherein extracting the forensic signature from the image is by identifying random components from an overall outline along variable external edges of an incremental identifying object (IIO).
A non-transitory computer readable medium containing instructions that when executed cause a processor to execute the steps of:
- obtaining an image of an identifying object that is on a printed document;
- extracting a forensic signature representation from the image of the identifying object;
- interpreting the identifying object to access a forensic signature for comparison with the extracted forensic signature representation;
- and
- wherein extracting the forensic signature representation from the image is by identifying random components from an overall outline along variable external edges of an incremental identifying object (IIO).
A data processing system comprising:
- a processing unit in communication with a computer readable medium, wherein the computer readable medium contains a set of instructions wherein the processing unit is designed to carry out the set of instructions to:
- obtain an image of an identifying object that is on a printed document;
- extract a forensic signature from the image of the identifying object;
- and
- enable access to a representation of the extracted forensic signature via information encoded in the identifying object;
- and
- wherein extracting a forensic signature from the image is by identifying random components from an overall outline along variable external edges of an incremental identifying object (IIO).
Dependencies are inferred from the claim text.