| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize exact correction following a variation of a distribution shape of a dark current at high speed. <P>SOLUTION: A black level interpolation section 3c calculates a black level of each pixel position by interpolating a black level of a plurality of positions of a valid imaging region registered in a black level registration section 3b in advance. On the other hand, based on a shielding region which an OB black level measuring section 3d measures, a black level distribution estimation section 3e estimates a black level distribution state of the valid imaging region. A black level correction section 3f corrects the interpolated black level by using the estimated black level distribution state, and a black level correction section 3g corrects the black level of each pixel position in the valid imaging region which an imaging section 2 outputs by using the value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
