Patent ID: 8203709
Filing Date: 2012-06-19
Classification: A61B

Abstract:
1. An image obtaining method, comprising: obtaining an image of an observation target irradiated with illumination light and excitation light simultaneously, the image being formed of reflection light of the illumination light reflected from the observation target and fluorescence emitted from the observation target excited by the excitation light; calculating, with respect to each pixel of an obtained image signal, estimated spectroscopic data in a particular fluorescence wavelength range which comprises a wavelength range that includes at least a substantial center wavelength of the fluorescence from an image signal of each pixel and estimated matrix data stored in advance for calculating estimated spectroscopic data; obtaining a quasi fluorescence image signal that includes an image signal attributable to the fluorescence based on the estimated spectroscopic data in the particular fluorescence wavelength range; and generating a quasi ordinary image signal by subtracting the quasi fluorescence image signal from the obtained image signal.