ENDOSCOPE SYSTEM COMPRISING CALIBRATION MEANS AND CALIBRATION METHOD THEREOF
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United States of America Patent
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Issued Date -
Sep 29, 2011
app pub date -
Jan 28, 2011
filing date -
Mar 25, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electronic endoscope system includes a light source device for emitting light and an electronic endoscope having a phosphor for producing white light with which a subject tissue in a body cavity is illuminated by causing the light to hit the phosphor as excitation light, and an image sensor for outputting image data of an image obtained by photoelectric conversion of reflected light of the white light illuminating the subject tissue, a wavelength detector for detecting a wavelength of the light, a calculator for calculating a wavelength shift amount which is a difference between a wavelength detected and a preset reference wavelength, a first correction unit for correcting a light amount of the light according to the calculated wavelength shift amount, and a second correction unit for correcting the gain in photoelectric conversion by the image sensor.
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