Imaging system and imaging method

An imaging system, comprising:

• a light source;
• an imaging device;
• a first optical system for irradiating an imaging object with light from the light source;
• a second optical system for causing one of light reflected from the imaging object and light transmitted through the imaging object to enter the imaging device;
• and
• a processing device for acquiring one image data in which all pixels have pixel intensities that are measured within one frame period after the imaging object is irradiated with the light as first image data, and correcting, with use of second image data when the light source does not irradiate the light and the first image data, an output decrease caused by a sensor thermal time constant of the imaging device to thereby obtain image data.

An imaging method, comprising:

• irradiating an imaging object with predetermined light from a light source;
• causing one of light reflected from the imaging object and light transmitted through the imaging object to enter an imaging device;
• acquiring a predetermined number of pieces of time-series image data over a plurality of frames by controlling the light source to irradiate the light with a predetermined period;
• selecting, for each pixel, a maximum pixel intensity from among the acquired predetermined number of pieces of time-series image data and
• obtaining, based on the maximum pixel intensity for the each pixel, one final image data as first image data when the light source irradiates the light.

An imaging:

• method, comprising:
• irradiating an imaging object with predetermined light from a light source;
• causing one of light reflected from the imaging object and light transmitted through the imaging object to enter an imaging, device;
• acquiring first image data when the light source irradiates the light, all pixels having pixel intensities that are measured when an elapsed time from the irradiation of the light is one frame period or less;
• acquiring second image data by controlling the light source not to irradiate the light;
• and
• taking a difference between the first image data and the second image data for each pixel to calculate pixel amplitude and correct an attenuation ratio of the pixel amplitude.

An imaging method, comprising:

• irradiating an imaging object with light from a light source;
• causing one of light reflected from the imaging object and light transmitted through the imaging object to enter an imaging device;
• and
• acquiring final image data when the light source irradiates the light, under such a state that a predetermined period of the light source and a frame period of the imaging device are out of synchronization.