| 摘要 |
A method and system are provided for determining a source optical system of still image data or video image data. An optical system is operated to identify system specific artifacts in image data produced by the system. The system specific artifacts are characterized by pattern recognition software. A comparison of the pattern of the known system, and preferably patterns of a plurality of known systems, are compared to image data of unknown sources to permit matching of the patterns and thereby identification of the source optical system. Alternatively, the comparison can determine if two sets of image data have a common source, or if a portion of image data has been manipulated.
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