Abstract: A processing apparatus (40), which is an example of a medical information processing apparatus according to an aspect of the present disclosure, includes a signal processing unit (41), which is an example of a bleeding detection unit configured to detect a bleeding portion in a body based on a detection result of an EVS (21), which is an example of an event detection unit including a plurality of first pixels, each of the first pixels receiving light reflected in the body irradiated by a light source (30), and detecting, for each of the first pixels, that a luminance change amount due to the light incident on the first pixel exceeds a predetermined threshold value depending on a change in a wavelength or an irradiation direction of the light source (30).

Abstract: An image processing device (40) of a form according to the present disclosure includes: a feature amount extraction section (42a) that extracts an intermediate feature amount related to machine learning from an input image that is an image inside a body; an importance calculation section (42b) that calculates image importance of the input image on the basis of the intermediate feature amount; and an image accumulation section (42c) that stores the input image on the basis of the image importance.

Abstract: An in-vivo observation system including: an excitation device (150) that vibrates an object in a living body; an event vision sensor (200) that detects, as an event, a change due to the vibration in a luminance value of light emitted from the object; and an estimation unit (528) that estimates a characteristic of the object on a basis of sensing data from the event vision sensor is provided.