Endoscope system, processor device, and operation method of endoscope system

An endoscope system, comprising:

• a display;
• and
• a processor with a memory, configured to:
• calculate a biometric feature amount of an observation target using a plurality of biometric feature amount calculation images obtained by imaging the observation target with a plurality of illumination light beams having different wavelength ranges;
• acquire a correction image obtained by imaging the observation target;
• calculate a biometric feature amount correction amount with respect to the biometric feature amount using the correction image;
• correct the biometric feature amount calculated according to the biometric feature amount correction amount;
• store the correction image and a biometric feature amount image, wherein the biometric feature amount image indicates-the biometric feature amount after correction, and the biometric feature amount image is configured to be associated with the correction image;
• wherein the memory stores a plurality of sets of the correction images,
• in response to determining that the endoscope system is operating in a verification mode, the display is configured to display the correction image and the biometric feature amount image,
• in response to determining that the endoscope system is operating in the verification mode and the processor receives an input signal, from an input device, indicating that the correction image that is displayed on the display and is used for calculation of the biometric feature amount correction amount is discarded by a user, the processor calculates the biometric feature amount correction amount by changing a set of the correction images, and corrects the biometric feature amount using the biometric feature amount correction amount calculated by changing the set of the correction images,
• the biometric feature amount is blood vessel information or an oxygen saturation,
• the memory stores, in addition to the biometric feature amount image, any of the biometric feature amount calculation image used for generation of the biometric feature amount image, the biometric feature amount correction amount, the biometric feature amount after correction, and the biometric feature amount before correction so as to be associated with the correction image
• the processor is configured to set a region other than an unused region as the usable region by setting the unused region for the correction image,
• in response to determining that the endoscope system is operating in the verification mode and the processor receives the input signal, from the input device, indicating that the correction image that is displayed on the display is used for calculation of the biometric feature amount correction amount is discarded by the user, the processor acquires a new correction image, calculates the biometric feature amount correction amount using the new correction image, and corrects the biometric feature amount using the biometric feature amount correction amount calculated using the new correction image, and
• acquires the correction image, which is obtained by imaging the observation target, before calculating the biometric feature amount.

A processor device is configured to:

• calculate a biometric feature amount of an observation target using a plurality of biometric feature amount calculation images obtained by imaging the observation target with a plurality of illumination light beams having different wavelength ranges;
• acquire a correction image obtained by imaging the observation target;
• calculate a biometric feature amount correction amount with respect to the biometric feature amount using the correction image;
• correct the biometric feature amount calculated according to the biometric feature amount correction amount;
• and
• store the correction image and a biometric feature amount image, wherein the biometric feature amount image indicates the biometric feature amount after correction, and the biometric feature amount image is configured to be associated with the correction image,
• wherein the processor device is configured to store a plurality of sets of the correction images, and
• in response to determining that the processor receives an input signal, from an input device, indicating that the correction image that is displayed on the display and is used for calculation of the biometric feature amount correction amount is discarded by a user, the processor calculates the biometric feature amount correction amount by changing a set of the correction images, and corrects the biometric feature amount using the biometric feature amount correction amount calculated by changing a set of the correction images.

An operation method of an endoscope system having a display;

• and a processor with a memory, the processor configured to calculate a biometric feature amount of an observation target using a plurality of biometric feature amount calculation images obtained by imaging the observation target with a plurality of illumination light beams having different wavelength ranges, the method comprising:
• a step in which the processor acquires a correction image obtained by imaging the observation target;
• a step in which the processor calculates a biometric feature amount correction amount with respect to the biometric feature amount using the correction image;
• a step in which the processor calculates the biometric feature amount;
• a step in which the processor corrects the biometric feature amount calculated according to the biometric feature amount correction amount;
• a step in which the processor stores the correction image and a biometric feature amount image, which shows the biometric feature amount after correction, so as to be associated with each other;
• a step in which the memory stores a plurality of sets of the correction images;
• and
• a step in which, response to determining that the endoscope system is operating in the verification mode and the processor receives an input signal, from an input device, indicating that the correction image that is displayed on the display and is used for calculation of the biometric feature amount correction amount is discarded by a user, the processor calculates the biometric feature amount correction amount by changing a set of the correction images, and corrects the biometric feature amount using the biometric feature amount correction amount calculated by changing a set of the correction images.