Patent ID: 8659594
Filing Date: 2014-02-25
Classification: G06T

Abstract:
1. A method for capturing a motion of a dynamic object, comprising: generating a 3D model of the dynamic object based on the anatomic features of the dynamic object and multi-viewpoint video images of a motion of the dynamic object; restoring geometric appearance information of the 3D model with respect to the motion of the dynamic object from each frame of multi-viewpoint images extracted from the multi-viewpoint video images; approximating a 3D skeleton with respect to the motion of the frame by using visibility information of each voxel constituting a visual hull obtained from the geometric appearance information of the 3-D model; receiving the 3D skeleton information and 3D model information of the dynamic object to estimate a posture of the 3D model on the basis of position information of individual joints constituting a skeletal structure of the 3D model in a corresponding frame; and estimating the shape of the 3D model by comparing a multi-viewpoint composite image, generated by projecting appearance information of a geometric mesh structure modified on the basis of posture information of the skeletal structure to the multi-viewpoint image, with the multi-viewpoint image and calibrating the geometric appearance information according to an error therebetween.