| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging device rapidly canceling a fixed pattern noise in long-term exposure. <P>SOLUTION: First, in the long-term exposure, multiple pieces of division bright image data is obtained by bright photographing in a time divison manner, and an addition average of the division bright image data is calculated. Multiple pieces of division dark image data are obtained by dark photographing in a time divison manner for the time shorter than the exposure time of bright photographing, and the addition average of the division dark image data is calculated. Bright average image data is subtracted from dark average image data to obtain bright image data in which a fixed pattern noise in the long-term exposure is canceled. <P>COPYRIGHT: (C)2008,JPO&INPIT |
