| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data detector further shortening a time required for detecting composition state data from a large number of composition state data than before. <P>SOLUTION: The data detector 1 for detecting the target composition state data from a plurality of the composition state data respectively showing the paper print of paper is equipped with: a linear sum calculation part 6 for calculating the linear sum of a plurality of composition state data; a correlation value calculation part 8 for calculating the correlation value of the target composition state data and the linear sum; and a detection and judgment part 9 for judging whether the target composition state data is contained in a plurality of the composition state data on the basis of the correlation value. <P>COPYRIGHT: (C)2008,JPO&INPIT |
