Millimeter wave image pickup

Patent Pending PROBLEM TO BE SOLVED: To provide a technique for generating a subject image in which inter-pixel contrast is appropriately maintained regardless of a temperature change in an observation area. ; SOLUTION: A millimeter wave radiated by a radiator 3 is received by a standard millimeter wave sensor 22. With an error between its detection value and a standard detection value as a correction value, the detection value of each millimeter wave sensor is corrected with the correction value.