Patent ID: 9031315
Filing Date: 2015-05-12
Classification: G06K,G06T

Abstract:
1. An information extraction method comprising: a first step of generating, from a plurality of first images obtained via visible light from viewpoints in surroundings of a living body portion, common portions of silhouettes of the living body portion that is shown in the images as a first stereoscopic image in a target space, and of generating, from a plurality of second images obtained via near-infrared light from the viewpoints in the surroundings of the living body portion, common portions of silhouettes of an inner surface image of the living body portion that is shown in the images as a second stereoscopic image in the target space, wherein the plurality of first images and the plurality of second images are alternately obtained; and a second step of extracting, as an identification information item, a value representing a shape of a cross section of the second stereoscopic image that has a predetermined positional relationship with respect to a reference position of the first stereoscopic image.