Imaging system, imaging method, imaging program, and information acquisition method

An imaging method comprising:

• a visible-light image capturing step of imaging an object with light including visible light to acquire a visible-light image;
• a millimeter-wave image capturing step of imaging the object with an electromagnetic wave in a millimeter-wave band to acquire a millimeter-wave image;
• a distance measurement step of measuring an imaging distance to the object;
• an information acquiring step of referring to a memory in which information indicating end points and/or edges of the millimeter-wave image in the visible-light image is stored in correspondence with the imaging distance to acquire the information in correspondence with the imaging distance;
• a laser light emission step of causing a laser head to emit laser light indicating the end points and/or edges based on the acquired information, to the object;
• and
• an image generation step of generating a superimposed image in which the visible-light image and the millimeter-wave image are superimposed based on the acquired information, wherein
• the visible-light image capturing is performed by focus control on the object to which the laser light is emitted to capture the visible-light image,
• the laser light has a wavelength band that at least partially overlaps with a transmission wavelength band of optical filters arranged in pixels for focus control of an imaging element of a visible-light image capturing device, and
• an emission pattern of the laser light is a pattern according to an arrangement direction of the pixels for focus control arranged in the imaging element.

An information acquisition method that uses a visible-light image capturing device that images an object with light including visible light to acquire a visible-light image and a millimeter-wave image capturing device that images an object with an electromagnetic wave in a millimeter-wave band to acquire a millimeter-wave image, the information acquisition method comprising:

• a visible-light image capturing step of imaging a millimeter-wave reflector as the object with the visible-light image capturing device to acquire the visible-light image for a plurality of imaging distances;
• a millimeter-wave image capturing step of imaging the millimeter-wave reflector with the millimeter-wave image capturing device to acquire the millimeter-wave image for the plurality of imaging distances;
• an information generation step of generating information indicating end points and/or edges of the millimeter-wave image in the visible-light image for each of the plurality of imaging distances, based on the visible-light image and the millimeter-wave image;
• and
• an information storing step of storing the information in association with each of the plurality of imaging distances in a memory, wherein
• the visible-light image capturing is performed by focus control on the object to which laser light is emitted to capture the visible-light image,
• the laser light has a wavelength band that at least partially overlaps with a transmission wavelength band of optical filters arranged in pixels for focus control of an imaging element of the visible-light image capturing device, and
• an emission pattern of the laser light is a pattern according to an arrangement direction of the pixels for focus control arranged in the imaging element.