THREE-DIMENSIONAL SHAPE MEASUREMENT X-RAY CT DEVICE AND THREE-DIMENSIONAL SHAPE MEASUREMENT METHOD BY X-RAY CT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a three-dimensional shape measurement X-ray CT device capable of highly accurately extracting three-dimensional shape information by taking into account a quality hardening phenomenon dependent on the material/thickness of a target substance, and a three-dimensional shape measurement method by the X-ray CT device.SOLUTION: A three-dimensional shape measurement X-ray CT device includes an optical distance meter for measuring the outer shape of a target substance simultaneously with projection data measurement, and a CT image analyzer for calculating the boundary threshold of the target substance based on a CT image and an outer shape measured value. The three-dimensional shape measurement X-ray CT device capable of highly accurately extracting three-dimensional shape information by taking into account a quality hardening phenomenon dependent on the material/thickness of a target substance, and a three-dimensional shape measurement method by the X-ray CT device are provided.