| 摘要 |
An attribute extracting module (256) extracts attributes from a document (50) input into the system. An attribute comparison module (270) compares extracted attributes with multiple classes (54) of documents. Upon determining that attributes of the document (50) match attributes of one of the classes (54), the document (50) is classified as belonging to the class (54) and is processed in accordance with the system actions associated with the matched class (54). In one embodiment, attributes of the input document (50) are compared to the documents (56) belonging to the matched class (54) which are already on the system. If the system determines that the input document (50) matches one of the existing images (56), the user (240) is alerted that the input document (50) already exists in the system. In a further embodiment, a match is determined in response to a comparison quality measure determined by a quality assessment module (258). The comparison quality measure measures the accuracy of the comparison. If the comparison quality measure exceeds a threshold, a match is determined to have been made. The comparison quality measure examines, among other factors, sizes, locations, and word accuracy values of matching regions within the input document (50) and the matching class (54).
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