| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect whether or not a photograph object stands still with a simple structure, in a photographed image used for biometric authentication or the like. <P>SOLUTION: In two image data of two photographs taken in time series, an absolute value of the brightness difference between pixels at the same position is obtained, the number of pixels exceeding a threshold value representing the limit of brightness change is counted, and whether or not the photograph object stands still is decided by comparing the result thereof with a movement decision threshold value. <P>COPYRIGHT: (C)2009,JPO&INPIT |
