Patent ID: 7855738

Claim:
An imaging device comprising: a plurality of picture elements arranged in a row direction and in a column direction for generating electric charges according to an amount of incident radiation, wherein each of the plurality of picture elements has a switch element for transferring the electric charge; a driving line for driving a plurality of the switch elements arranged in the row direction; a sample hold circuit for sampling and holding the electric charges transferred from the picture elements and outputted via a plurality of signal lines in parallel, and reading the electric charges sequentially; a memory circuit that stores image pick-up outputs of said picture elements; a noise detection unit that detects line noise caused in parallel to the driving line in the image pick-up outputs stored in said memory circuit, wherein said noise detection unit detects an existence of the line noise in a current row X based on a calculation result such that an absolute value of a difference between a total sum of output values from the picture elements in the current row X and a total sum of output values from the picture elements in a prior row X−1 is larger than a predetermined value, and such that an absolute value of the difference between the total sum of the output values from the picture elements in the current row X and a total sum of output values from the picture elements in a succeeding row X+1 is larger than a predetermined value; means for calculating an output quantity of the detected line noise, in response to a detection of the line noise; and means for correcting, in response to a detection of the line noise, the image pick-up output by subtracting the output quantity of the detected line noise calculated by the means for calculating from image pick-up controls from each of the rows in which the existence of the line noise is detected.