| 摘要 |
PROBLEM TO BE SOLVED: To provide an image pickup device for reducing the burden of internal processing by determining a correction amount of a low sensitivity part from information of a high sensitivity part in using a sensitivity difference between two light sensitive elements with different sensitivity to realize a wide dynamic range. SOLUTION: A black level correction value of a sub-light-sensitive pixel is calculated by multiplying a black level correction value of a main light-sensitive pixel by an area ratio of a cell area of the main light-sensitive pixel to a cell area of the sub-light-sensitive pixel. To determine the black level correction value of the sub-light-sensitive pixel, there is no need to perform fetching control of an image pickup signal from the sub-light-sensitive pixel belonging to an OP part. In addition, if the fetching control of the image pickup signal is not performed from the sub-light-sensitive pixel in the OP part, a processing system may be stopped for a corresponding period of time. If the processing system is stopped for the period of time, it is possible to contribute to processing reduction and power saving of the entire digital camera. COPYRIGHT: (C)2004,JPO&NCIPI |
