Imaging device and imaging method for use in such device

An imaging system, comprising:

• imaging means including a plurality of photosensors or radiation sensors arranged two-dimensionally and generating electric charges according to an amount of incident radiation and a sample hold circuit for sampling and holding the electric charges generated by said sensors to read them;
• emitting means for emitting light or radiation;
• image pick-up output storing means for storing image pick-up outputs at imaging;
• means for detecting an extrinsic line noise in the image pick-up outputs at imaging;
• means for calculating an output quantity of the detected extrinsic line noise;
• arithmetic processing circuit for correcting the image pick-up outputs stored in said image pickup output storing means on the basis of the obtained output quantity of the extrinsic line noise;
• and
• control means for controlling each of said means.

An imaging method for use in an imaging device having imaging means including a plurality of photosensors or radiation sensors arranged two-dimensionally and generating electric charges according to an amount of incident radiation and a sample hold circuit for sampling and holding the electric charges generated by said sensors to read them and image pick-up output storing means for storing image pick-up outputs of the photosensors or the radiation sensors at imaging, comprising the steps of:

• storing the image pick-up outputs into said image pick-up output storing means;
• detecting an existence of a line noise in the image pick-up outputs stored in said storing means;
• calculating an output quantity if the line noise exists;
• and
• eliminating the line noise at the line including the line noise in said imaging means by processing the output quantity and the image pick-up outputs stored in said image pick-up output storing means by using an arithmetic processing circuit.