Processor device and method for operating same, and endoscopic system and method for operating same
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United States of America Patent
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Apr 23, 2019
Grant Date -
Jan 25, 2018
app pub date -
Sep 29, 2017
filing date -
Apr 2, 2015
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Abstract
An image signal acquisition unit acquires a first image signal corresponding to a first wavelength band, a second image signal corresponding to a second wavelength band, a third image signal corresponding to a third wavelength band, and a fourth image signal corresponding to a fourth wavelength band. A correlation storage unit stores a correlation between oxygen saturation degree and a first calculated value obtained from a specific calculation based on the second image signal, the third image signal, and the fourth image signal. A correlation correction unit calculates a correlation correction amount on the basis of the first image signal, the second image signal, the third image signal, and the fourth image signal, and corrects the correlation on the basis of the correction amount.
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