| 摘要 |
PURPOSE:To effectively remove a smear phenomenon, by reading out line information in the vicinity of the boundary between a photoelectrically converting section and an accumulating section and calculating the line information and another line information read out from the accumulating section. CONSTITUTION:Electric charge accumulated in a photoelectrically converting section are shifted to an electric charge accumulating section in a vertical blanking period. All image information in the charge accumulating section is successively read out by a horizontal register and smear components are read out in 1-H period just before the next vertical blanking period. Only the smear components read out in the 1-H period are AD-converted and stored in a line memory 24 for a period of 1-V period. The smear components are attenuated by an attenuator 26 after they are again DA-converted and become smear correcting signals 29. When the smear correcting signals 29 and picture signals are supplied to a subtracting circuit and their difference is obtained, a picture signal 28 in which smear components are removed, are obtained. |
