Arrangements for increasing detection confidence
AssigneeDigimarc Corporation
InventorsGeoffrey B. Rhoads, John Stach
Life of this patent
Estimating the term…
Abstract
In one embodiment, a first set of digital data (e.g., an image) is tested for the presence of a certain feature (e.g., a certain face), yielding one of two outcomes (e.g., not-present, or present). If the testing yields the first outcome, no additional testing is performed. If, however, the testing yields the second outcome, further testing is performed to further check this outcome. Such further testing is performed on a second set of digital data that is based on, but different from, the first set of data. Only if the original testing and the further testing both yield the same second outcome is it treated as a valid result. A variety of other features and arrangements are also detailed.
Claims22
A method comprising:
- receiving content data;
- performing a first test on the content data to detect the presence of a first feature;
- only after detecting the presence of the first feature by said first test, performing a second test to confirm the presence of the first feature;
- wherein the method further includes:
- corrupting the content data using a hardware device configured to perform such act;
- and
- performing the second test on the corrupted content data to confirm the presence of the first feature.
A method comprising:
- (a) conducting a testing process by applying a first set of data to a testing module, the first set of data representing image, audio or video content, the testing module outputting data indicating a testing outcome;
- (b) in response to the testing process outputting data indicating a first testing outcome, conducting a re-testing process by repeating act (a) using a second set of data representing said content, the second set of data being derived from the first set;
- (c) in response to the re-testing process again outputting data indicating said first testing outcome, outputting a signal indicating the first testing outcome as a final outcome.
A method comprising:
- receiving content data;
- performing initial processing on the content data, yielding intermediate data;
- performing a test to detect the presence of a feature in the content data, the test using the intermediate data;
- altering the intermediate data, yielding altered intermediate data;
- and
- repeating the test using the altered intermediate data to confirm the presence of said feature.
Dependencies are inferred from the claim text.