| 摘要 |
<p>In an imaging device control system of an electronic shutter/lens diaphragm/automatic gain control, an automatic exposure adjustment control is realized, without influence of smear, by precisely calculating the smear amount even in a case of occurrence of a weak smear that has not reached a saturation level, without taking any measures to variation of dark current of a vertical OP, behavior of dark noise, and defect pixels of the vertical OP. When a smear is detected, a first electronic shutter speed and a first lens diaphragm value are measured, and first color information integrated values of red, green and blue are measured in the respective predetermined colorimetric areas of the effective pixel range of imaging means. The electronic shutter speed is delayed by a predetermined amount so as to obtain the same exposure amount as of the first electronic shutter speed and first lens diaphragm value. The lens diaphragm is contracted in accordance with the predetermined amount. Then, second color information integrated values of red, green and blue are measured in the colorimetric areas, and the smear amount is calculated from the color information integrated values of red, green and blue.</p> |
