Patent ID: 8780116
Filing Date: 2014-07-15
Classification: G06K,G06T

Abstract:
1. An object-shape generation method, comprising: in an apparatus: capturing a plurality of images of a first object within a second object using near infrared light rays; capturing a plurality of images of the second object using visible light rays; extracting a plurality of silhouette points of the second object from the plurality of images on the second object; determining a set of reference points from the plurality of extracted silhouette points; detecting an angle of the set of reference points in relation to a reference line in a transverse direction of the plurality of images of the second object; aligning one or more of the plurality of images of the first object with the plurality of images of the second object based on the detected angle; detecting a plurality of projection regions of the first object when individual images of the plurality of images of the first object are projected to a projective space from different viewpoints of the individual images, the individual images being captured from a circumference of the second object; wherein the projection regions are projected in an area from a surface of projection in the projective space to a projective plane that is distant from the surface of projection by a predetermined length in a depth direction; and extracting a common portion of the plurality of detected projection regions.