Patent ID: 9129418
Filing Date: 2015-09-08
Classification: G06T

Abstract:
1. A computer-implemented method of processing two-dimensional images of an asymmetrical object, the method comprising: a) generating a three-dimensional surface reconstruction of the object from a plurality of two-dimensional images of the object which have been obtained from different perspectives; b) generating data that specifies a user-selected point of interest in at least one two-dimensional image used to generate the three-dimensional surface reconstruction of the object in a); c) generating data that specifies position of an area of interest in the object, wherein the user-selected point of interest of b) lies within the area of interest; d) identifying a plane containing view directions with reduced foreshortening for the area of interest specified by the data of c); e) determining a three-dimensional point on the three-dimensional surface reconstruction of the object generated in a), wherein the three-dimensional point corresponds to the user-selected point of interest specified by the data of b); and f) automatically generating data representing at least one particular view direction contained with the plane identified in d), wherein the at least one particular view direction corresponds to the three-dimensional point determined in e); wherein the three-dimensional point of e) is determined by back-projecting the three-dimensional surface reconstruction of the object generated in a) onto at least one two-dimensional image containing the user-selected point of interest specified by the data of b), finding a two-dimensional point on the back-projected image that is closest to such user-selected point of interest, and equating the three-dimensional point to the point on the three-dimensional surface reconstruction corresponding to such two-dimensional point on the back-projected image.