US 11,422,099 B2 · Inspection position identification method, three-dimensional image generation method, and inspection device

Abstract

An inspection position identification method that allows accurate inspection to be performed without in-advance identification of the position of an inspection plane in an inspected target. A three-dimensional image generation method that allows generation of a three-dimensional image for inspection without in-advance identification of the position of an inspection plane in an inspected target and then allows inspection to be performed. An inspection device including the methods. An inspection device includes a storage unit, which stores a radiation transmission image of an inspected object and a three-dimensional image generated from the radiation transmission image, and a control unit. The process carried out by the control unit for identifying an inspection position in a three-dimensional image includes identifying the position of a transmission picture of the inspection position in the radiation transmission image and identifying the inspection position in the three-dimensional image from the position of the transmission picture.

Claims6

Dependent claims

An inspection position identification method for identifying an inspection position in a three-dimensional image generated from a radiation transmission image of an inspected object in an inspection device comprising a radiation source and a detector configured to detect light having been radiated from the radiation source and having passed through the inspected object,

wherein positions of the radiation source, the inspected object, and the radiation transmission image are managed with a same spatial coordinate system, the method being characterized by comprising:
a step of identifying a position of a transmission picture of the inspection position in each of no less than two of the radiation transmission images;
and
a step of identifying the inspection position in the three-dimensional image, based on an irradiation angle of radiation with respect to the inspection position when each of the radiation transmission images is detected, from a position of the radiation source and the position of the transmission picture in each of no less than two of the radiation transmission images.

1 more element

A three-dimensional image generation method for generating a three-dimensional image of an inspected object from a radiation transmission image of the inspected object in an inspection device comprising a radiation source and a detector configured to detect light having been radiated from the radiation source and having passed through the inspected object,

where in position of the radiation source, the inspected object, and the radiation transmission image are managed with a same spatial coordinate system, the method being characterized by comprising:
a step of identifying a position of a transmission picture of an inspection position in the inspected object in each of no less than two of the radiation transmission images;
a step of identifying the inspection position in the three-dimensional image to be generated from no less than two of the radiation transmission images, based on an irradiation angle of radiation with respect to the inspection position when each of the radiation transmission images is detected, from a position of the radiation source and the position of the transmission picture in each of no less than two of the radiation transmission images;
and
a step of generating the three-dimensional image of the inspected object containing the inspection position from no less than two of the radiation transmission images.

2 more elements

Dependencies are inferred from the claim text.

Inspection position identification method, three-dimensional image generation method, and inspection device

Life of this patent

Inspection position identification method, three-dimensional image generation method, and inspection device

Life of this patent

Abstract

Claims6