Abstract: This electronic endoscope system includes an evaluation value calculation unit, an assessment unit, and a representative value determination unit. The evaluation value calculation unit is configured so as to obtain an evaluation value indicating an extent of a lesion in biological tissue in each of a plurality of images captured in a predetermined section along the depth direction of a region in an organ. The assessment unit is configured so as to assess whether the extent of the lesion in the section is changed on the basis of the degree of variation of the evaluation value. The representative value determination unit is configured so as to define a representative value of the section representing the evaluation value, in a different method when the extent of the lesion is assessed to be changed and when the extent of the lesion is assessed not to be changed.

Abstract: This electronic endoscope system includes an evaluation value calculation unit, an assessment unit, and a representative value determination unit. The evaluation value calculation unit is configured so as to obtain an evaluation value indicating an extent of a lesion in biological tissue in each of a plurality of images captured in a predetermined section along the depth direction of a region in an organ. The assessment unit is configured so as to assess whether the extent of the lesion in the section is changed on the basis of the degree of variation of the evaluation value. The representative value determination unit is configured so as to define a representative value of the section representing the evaluation value, in a different method when the extent of the lesion is assessed to be changed and when the extent of the lesion is assessed not to be changed.

Abstract: This electronic endoscope system includes an evaluation unit that evaluates an extent of a lesion by processing an image inside an organ image-captured by an electronic endoscope. The evaluation unit includes: an image evaluation value calculation unit that calculates an image evaluation value for the captured image; a lesion evaluation unit that calculates a representative evaluation value of image evaluation values from the image evaluation value for each of a plurality of spaces to evaluate the spread of the lesion; and a lesion evaluation adjustment unit that sets, for an empty section for which a representative evaluation value is not generated, as an estimated representative evaluation value, one image evaluation value for a non-empty section, or a representative evaluation value obtained on the basis of the image evaluation value, and that assigns the estimated representative evaluation value to the empty section.