IMAGE REGION EXTRACTION DEVICE, IMAGE REGION EXTRACTION METHOD, AND IMAGE REGION EXTRACTION PROGRAM

摘要

An image region extraction device for extracting a target region on the basis of a designated region with high precision. An image region extraction device (100) extracts a target region from an image on the basis of a designated region and is provided with: a spatial change learning unit (180) for acquiring, for each section of the image, a pixel value changing pattern which is a characteristic of the spatial changes in a pixel value component, and a distance changing pattern which is a characteristic of the spatial changes in a distance component extending from a reference position to a photographic object; and a region dividing unit (210) for extracting a target region on the basis of the similarities between the pixel value changing pattern and the distance changing pattern among the designated region and each section of the image.

主权项

1. An image region extracting apparatus that extracts a target region from an image based on a designation region, the apparatus comprising:
a spatial change learning section that acquires a pixel value change pattern and a distance change pattern of each part of the image, the pixel value change pattern being a spatial change characteristic of a pixel value component, and the distance change pattern being a spatial change characteristic of a distance component from a reference position to a subject; and a region dividing section that extracts the target region based on similarities of the pixel value change pattern and the distance change pattern between the designation region and each part of the image.