| 摘要 |
<p>The present invention provides a signal processing device which, even when a defective pixel exists in the VOPB area B, can detect column noise accurately, and can carry out column noise correction. The signal processing device includes a solid-state image pickup element having a pixel part including an effective pixel area to be irradiated with light, and a vertical light-shielded pixel area where irradiation of light is shielded, a vertical scanning circuit, a horizontal scanning circuit, and an output circuit, a clamp section which clamps, to a predetermined reference value, black level values of pixel signals from the vertical light-shielded pixel area and effective pixel area, a threshold determination section which determines a threshold value, based on the predetermined reference value, a determination section which determines whether or not pixel signals from the vertical light-shielded pixel area that have the black level value clamped to the reference value by the clamp section exceed the threshold value determined by the threshold determination section, a defective pixel detector which detects a defective pixel among pixels arranged in the vertical light-shielded pixel area, and a signal processor which performs a predetermined signal processing on pixel signals from the vertical light-shielded pixel area that have a black level value clamped to the reference value by the clamp section.</p> |
