Method and device for verifying multimedia entities and in particular for verifying digital images
First Claim
1. A method of verifying multimedia entities to determine whether a first multimedia entity matches a second multimedia entity, characterized in that it comprises the steps of:
- selecting, by a content-based search, from a plurality of second multimedia entities, a set of second multimedia entities close to said first multimedia entity, and deciding as to at least one match between said first multimedia entity and at least one second multimedia entity of said set of second multimedia entities, based on a comparison between said first multimedia entity and said second multimedia entities of said set.
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Abstract
The method of verifying multimedia entities according to the invention to determine whether a first multimedia entity matches a second multimedia entity, is characterized in that it comprises a step of selecting from a plurality of second multimedia entities, by a content-based search, a set of second multimedia entities close to the first multimedia entity, and a step of deciding as to at least one match between the first multimedia entity and at least one second multimedia entity of the set of second multimedia entities, based on a comparison between the first multimedia entity and the second multimedia entities of the set.
36 Citations
66 Claims
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1. A method of verifying multimedia entities to determine whether a first multimedia entity matches a second multimedia entity, characterized in that it comprises the steps of:
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selecting, by a content-based search, from a plurality of second multimedia entities, a set of second multimedia entities close to said first multimedia entity, and deciding as to at least one match between said first multimedia entity and at least one second multimedia entity of said set of second multimedia entities, based on a comparison between said first multimedia entity and said second multimedia entities of said set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 62, 65, 66)
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27. A method of verifying at least one match between a first multimedia entity and a second multimedia entity, characterized in the method comprises the following steps:
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obtaining a first criterion (C1) of match reliability, comparing the first reliability criterion (C1) obtained with a predetermined threshold, according to the result of the comparison, deciding as to a first match between the first multimedia entity and the second multimedia entity, in case of positive first match decision, the method comprises the following steps;
extracting a first item of information from the first multimedia entity, comparing between the extracted item of information and a second item of information of the second multimedia entity, obtaining a second criterion (C2) of match reliability, according to the result of the comparison of items of information, deciding as to a match between the first and second items of information, deciding as to a second match between the first multimedia entity and the second multimedia entity depending, on the one hand, on the decision of the first match between the first and second multimedia entity and, on the other hand, on the decision as to a match between the first and second items of information, and determining a measurement of the reliability of the decision as to the second match depending on at least one of the first and second match reliability criteria. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A device for verifying multimedia entities to determine whether a first multimedia entity matches a second multimedia entity, characterized in that it comprises:
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means for selecting, by a content-based search, from a plurality of second multimedia entities, a set of second multimedia entities close to said first multimedia entity and means for deciding as to at least one match between said first multimedia entity and at least one said second multimedia entity of said set of second multimedia entities, based on a comparison between said first multimedia entity and said second multimedia entities of said set. - View Dependent Claims (63, 64)
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61. A device for verifying at least one match between a first multimedia entity and a second multimedia entity, characterized in the device comprises:
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means for obtaining a first criterion (C1) of match reliability, means for comparing the first reliability criterion (C1) obtained with a predetermined threshold, means for deciding as to a first match between the first multimedia entity and the second multimedia entity and which are adapted to decide as to the first match according to the result of the comparison, means for extracting a first item of information from the first multimedia entity, means for comparing between the extracted item of information and a second item of information of the second multimedia entity, means for obtaining a second criterion (C2) of match reliability, means for deciding as to a match between the first and second items of information and which are adapted to decide as to said match according to the result of the comparison of items of information, and means for deciding as to a second match between the first multimedia entity and the second multimedia entity, said deciding means being adapted to decide as to the second match depending, on the one hand, on the decision of the first match between the first and second multimedia entity and, on the other hand, on the decision as to a match between the first and second items of information, and means for determining a measurement of the reliability of the decision as to the second match which are adapted to determine the measurement of the reliability of the decision depending on at least one of the first and second match reliability criteria.
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Specification