1. Field of the Invention
The presently disclosed subject matter relates to a technique that retrieves and presents a case image similar to a diagnostic object image (image of object to be diagnosed) on the basis of an amount of feature (feature amount) extracted from the diagnostic object image.
2. Description of the Related Art
In Japanese Patent Application Laid-Open No. 2004-5364, an ROI (region of interest) is specified on image data; information such as image data which has a similar feature and a diagnostic result of the similar image data are retrieved from a database and displayed.
In Japanese Patent Application Laid-Open No. 2001-117936, a region of interest is extracted from a diagnostic image, and a similarity search is performed using the amount of feature of the region of interest.
Japanese Patent Application Laid-Open No. 2008-257292 shows another example of similar image search system.
Japanese Patent Application Laid-Open No. 2008-245719 shows an example of a technique for extracting a lesion region on the basis of position information of a region of interest.
T. F. Cootes, G. J. Edwards, and C. J. Taylor “Active Appearance Models”, In Proc. 5th European Conference on Computer Vision, Springer Germany, volume II: pp. 484-498 (1998), shows a method of acquiring shape information and texture information of a lesion part in the ROI (region of interest).