Patent ID: 8643710

Claim:
An image pickup apparatus comprising: a first irradiation unit that emits first light to a subject; a second irradiation unit that emits second light that has a wavelength band different from that of the first light, to the subject; an image pickup unit that is capable of outputting, as pixel information, an electrical signal after photoelectric conversion from a pixel arbitrarily designated as a read target among a plurality of pixels for imaging; a setting unit that is capable of arbitrarily setting a pixel as the read target and a read order in the image pickup unit; a control unit that controls irradiation processes in the first irradiation unit and the second irradiation unit and changes the pixel as the read target and the read order set by the setting unit according to a type of an irradiation unit that emits light; a reading unit that reads the pixel information by causing the pixel information to be output from the pixel set as the read target by the setting unit among the plurality of pixels for imaging in the image pickup unit, in accordance with the read order according to setting in the setting unit; an image processing unit that generates an image from the pixel information read by the reading unit; and a display unit that displays the image generated by the image processing unit, wherein in a frame in which the image pickup unit picks up an image of the subject irradiated with the second light emitted from the second irradiation unit to output the pixel information, the control unit performs control such that the reading unit does not read the pixel information from a first pixel on which light corresponding to the wavelength band of the second light is not incident, a second pixel on which light corresponding to the wavelength band of the second light is incident is exposed and the reading unit reads the pixel information from the exposed second pixel during a period for exposing and reading the first pixel and during a period for reading the pixel information from the second pixel.