THREE-DIMENSIONAL EVALUATION DEVICE, THREE-DIMENSIONAL DATA MEASUREMENT SYSTEM AND THREE-DIMENSIONAL MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a three-dimensional data measurement technology that can easily recognize change portions and make measurement works efficient.SOLUTION: A three-dimensional data evaluation device 100 according to an embodiment includes: a three-dimensional detail data storage unit 111 that stores three-dimensional detail data about an exterior shape of an object: a roughly dense point group data storage unit 112 that stores roughly dense point group data measured by a three-dimensional instrument 11 at rough density in comparison with the density of a measuring point of the three-dimensional detail data; a positioning unit 121 that positions the three-dimensional detail data and the roughly dense point group data to the same coordinate system; a difference-amount calculation unit 123 that calculates an amount of difference between the three-dimensional detail data and the roughly dense point group data on the basis of a positioning resu and a change portion specification unit 124 that specifies a change portion from the three-dimensional detail data on the basis of a calculation result of the amount of difference.SELECTED DRAWING: Figure 1