| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To accurately calculate a shift amount by which a correlation amount of a pair of data rows becomes minimum even if it is a pair of data rows without coidentity. <P>SOLUTION: In the correlation calculation method, a first data row where a plurality of first data are one-dimensionally developed, and a second data row where a plurality of second data are one-dimensionally developed are relatively displaced while changing a relative displacement amount one-dimensionally, and the correlation amount between the first data row and the second data row is arithmetically calculated to obtain the displacement amount by which an extreme value of the correlation amount is obtained, wherein an evaluated value showing similarity between the first data row and the second data row is derived by regarding change of a ratio of the first data to the second data which correspond to each other in a state where the first data row and the second data row are relatively displaced as equal without depending on a one-dimensional position, and the evaluated value is defined as arithmetic operation between the first data and the second data near the one-dimensional predetermined position, and an amount obtained by integrating the evaluated amount by moving the predetermined position over a one-dimensional predetermined section is set as the correlation amount. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
