Patent ID: 9460520
Filing Date: 2016-10-04
CPC Classification: G06K,G06T

Claim Text:
1. A computer-implemented method ( 200 ) for identifying a difference between a first 3D model ( 101 a ) of an environment and at least a second 3D model ( 101 b ) of the environment, wherein the first and second 3D model each comprise a plurality of points or parts, wherein each point or part of the first and second model comprises geometrical information and texture information, the method comprising the steps of: automatically matching ( automatically comparing ( wherein the step of comparing the matched points or parts of the first and second model to determine the at least one difference value based on the geometrical information and the texture information comprises the sub-steps of: for each point or part of the first 3D model, searching for a closest point in the second 3D model to determine at least one first difference value for that point or part; for each point or part of the second 3D model, searching for a closest point in the first 3D model to determine at least one second difference value for that point or part; and determining the at least one difference value further based on the at least one first difference value and the at least one second difference value.