SIMILAR IMAGE RETRIEVAL DEVICE, METHOD OF OPERATING SIMILAR IMAGE RETRIEVAL DEVICE, AND SIMILAR IMAGE RETRIEVAL PROGRAM

摘要

A feature amount calculation unit 61 calculates a feature amount corresponding to a pattern of a lesion by analyzing an inspection image. A probability calculation unit calculates a first existence probability which is a probability of the pattern of a lesion existing within the inspection image, using a calculation expression. The calculation expression is created in advance by a statistical method on the basis of a relationship between the feature amount and the presence or absence of the pattern of a lesion within an image for learning which is visually determined by a person. A similarity calculation unit calculates a similarity between the inspection image and a case image on the basis of the first existence probability and a second existence probability which is a probability of the pattern of a lesion existing within the case image which is calculated by the statistical method similarly to the first existence probability.

主权项

1. A similar image retrieval device that retrieves a similar image which is similar to a retrieved image from a plurality of instance images, comprising:
a feature amount calculation unit that calculates a feature amount corresponding to a pattern, registered in advance, by analyzing the retrieved image; a probability calculation unit that calculates a first existence probability of the pattern existing within the retrieved image, through a statistical method, on the basis of the feature amount calculated by the feature amount calculation unit; and a similarity calculation unit that calculates a similarity between the retrieved image and each of the plurality of instance images, on the basis of the first existence probability calculated by the probability calculation unit and a second existence probability of the pattern existing within the instance images which is calculated with respect to the plurality of instance images.