| CPC A61B 6/5247 (2013.01) [A61B 6/4417 (2013.01); A61B 6/463 (2013.01); G06T 7/337 (2017.01)] | 10 Claims |

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1. An imaging support device used in a radiography apparatus including a radiation source and a radiation image detector that detects a radiation image of a subject on the basis of radiation emitted from the radiation source and transmitted through the subject, the imaging support device comprising:
an optical camera that optically images a region including an irradiation field of the radiation applied to the subject from the radiation source; and
at least one processor, wherein
the processor
acquires, as a first optical image, an optical image indicating the subject in the region by causing the optical camera to perform imaging in conjunction with radiography performed by the radiography apparatus,
stores a radiation image acquired through the radiography and the first optical image in a storage unit in association with each other,
acquires, as a second optical image, an optical image indicating the subject in the region by causing the optical camera to perform imaging after the radiography is performed, and
displays a superimposition image, in which the first optical image and the second optical image are superimposed, and the radiation image on the display unit.
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