Abstract: A train control device including a control logic generation unit that uses an environmental model defined by the number of a plurality of closed sections constituting a track included in a predetermined control target region, a connection configuration of the closed sections, and the number of trains present on the track, a state of the environmental model being changed discretely according to a combination of a position of one control target train that is the train to be controlled, positions of zero or more other trains, and the presence or absence of reservation for each of the closed sections, and generates a control logic that is a logic for transitioning the state of the environmental model depending on the state of the environmental model so as to satisfy a predetermined condition, and a regeneration instruction unit that instructs the control logic generation unit to regenerate the control logic.

Abstract: A route control program generation device constructs a group of a plurality of environment models with different states in which the states of the plurality of environment models are changed in various manners. The environment model is constituted by a first moving body that is a control target and is present on a track divided into a plurality of sections, and a second moving body other than the control target, and searches for a state transition order where it is possible to achieve a request for causing the first moving body to move to a prescribed section by causing the first moving body to move to a destination while causing a state of one environment model to transition to a state of another environment model in response to the request. The route control program generation device constructs the group to match a prescribed restriction condition based on the restriction condition.

Abstract: An X-ray therapy system includes a gantry, a positron emission tomography (PET) detection device in the gantry, and an irradiation unit in the gantry (and configured to radiate X-rays to a patient. The PET detection device has a pair of photon detection units and photon detection unit-moving devices configured to move the pair of photon detection units with respect to the gantry.

Abstract: This imaging controller of the imaging controller includes: an imager position determination section that determines whether or not a first imager is located in an overlapping region where a rotation range of the first imager and a rotation range of a second imager overlap each other when a rotation mechanism rotates the first and second imagers by an angle greater than the predetermined angle; and an imaging timing control section that causes one or both of the first and second imagers to perform imaging when arrival of an imaging timing is detected and that causes only the second imager to perform imaging in at least one imaging timing whose arrival is detected in a state where the imager position determination section determines that the first imager is located in the overlapping region.

Abstract: A specific site location measuring includes: calculating matching degrees based on a plurality of transmission images imaged by use of radiation transmitting through a specimen and a template set; selecting a template transmission image from the plurality of transmission images based on the matching degrees; adding a new template generated based on the template transmission image, to the template set; imaging a location measurement transmission image by use of radiation transmitting through the specimen; selecting an optimal template that is the most similar to a portion of the location measurement transmission image, from the template set by performing pattern matching of each of templates of the template set with the location measurement transmission image; and calculating a specific site location based on the location measurement transmission image and the optimal template.

Abstract: A radiotherapy device controller includes: a visual line calculator configured to calculate a visual line based on a position on a transmissive image imaged using a radiation penetrating a subject, a specific part of the subject being shown at the position; a position calculator configured to calculate a position of the specific part based on a position of a trajectory of the specific part and a position of the visual line; and an emitter configured to control a radiation emitter that emits a therapeutic radiation, so that the therapeutic radiation penetrates at the position of the specific part.

Abstract: This imaging controller of the imaging controller includes: an imager position determination section that determines whether or not a first imager is located in an overlapping region where a rotation range of the first imager and a rotation range of a second imager overlap each other when a rotation mechanism rotates the first and second imagers by an angle greater than the predetermined angle; and an imaging timing control section that causes one or both of the first and second imagers to perform imaging when arrival of an imaging timing is detected and that causes only the second imager to perform imaging in at least one imaging timing whose arrival is detected in a state where the imager position determination section determines that the first imager is located in the overlapping region.

Abstract: The X-ray therapy system includes a gantry (11), a positron emission tomography (PET) detection device (12) provided in the gantry (11), and an irradiation unit (15) provided in the gantry (11) and configured to radiate X-rays to a patient. The PET detection device (12) has a pair of photon detection units (13) and photon detection unit-moving devices (14) configured to move the pair of photon detection units (13) with respect to the gantry (11).

Abstract: A radiation control method includes: calculating degrees of similarity corresponding to matching target areas; calculating a specific image position where a specific image area corresponding to a maximum value of the degrees of similarity out of the matching target areas is positioned in a radiographic image; and calculating a drive amount with which a therapeutic radiation ray irradiation device is driven, based on the specific image position. Further, calculating one degree of similarity corresponding to one matching target region out of the degrees of similarity includes: referring to a template table in which the matching target areas are associated with sets of templates to calculate a set of templates corresponding to the one matching target area out of the sets of templates; and detecting, from the set of templates, a similar template most similar to a matching target image displayed in the one matching target area of the radiographic image.

Abstract: A radiotherapy apparatus control method according to the present invention includes: a step S6 of calculating rotational and first translational correction amounts based on a position and orientation of a first region represented by a radioscopic image of a subject; and a step S9 of calculating a second translational correction amount based on a position and orientation of the second region represented by the radioscopic image and the rotational correction amount; and a step S10 of driving a couch so that it rotates by the rotational correction amount and translates by the second translational correction amount. The first region is larger than the second region. According to such a method, the second region can be arranged in a predetermined position at higher accuracy compared with a case where the position of the couch is adjusted by using the position and orientation of only one of the first and second regions.

Abstract: A radiotherapy apparatus controller includes: an imperfect three-dimensional data calculating unit configured to calculate an imperfect three-dimensional data based on a plurality of imperfect transmission images which is respectively imaged from a plurality of imperfect directions except a predetermined direction among a plurality of directions different from each other; an imaging unit configured to image an additional transmission image from the predetermined direction by using an imager system; a perfect three-dimensional data calculating unit configured to calculate a perfect three-dimensional data based on the additional transmission image and the imperfect three-dimensional data; and a position calculating unit configured to calculate a position of a part of a subject inside based on the perfect three-dimensional data. The radiotherapy apparatus controller can faster calculate the position with higher precision.

Abstract: A radio tomography imaging method includes calculating a conversion function based on transmission images picked up by using radiation emitted from first and second radiation sources. A position of the second radiation source when the radiation has been emitted coincides with a position of the first radiation source when the radiation has been emitted, and one of the first and second radiation sources emits the radiation when the other emits the radiation, picking up a plurality of first reconfiguration transmission images and a plurality of second reconfiguration transmission images by using a plurality of first reconfiguration radiations and a plurality of second reconfiguration radiations simultaneously emitted from the first radiation source and the second radiation source. The plurality of first and second reconfiguration transmission images are then corrected based on the conversion function. The plurality of corrected transmission images are reconfigured into three-dimensional data.

Abstract: A radiotherapy device controller includes: a visual line calculator configured to calculate a visual line based on a position on a transmissive image imaged using a radiation penetrating a subject, a specific part of the subject being shown at the position; a position calculator configured to calculate a position of the specific part based on a position of a trajectory of the specific part and a position of the visual line; and an emitter configured to control a radiation emitter that emits a therapeutic radiation, so that the therapeutic radiation penetrates at the position of the specific part.

Abstract: A radiation tomography method of the present invention includes: calculating a radiating timing, with reference to imaging timing correction data relating a plurality of gantry angles to a plurality of imaging timing correction amounts, on the basis of an imaging timing at which a radiation source supported by a rotating traveling gantry is arranged at a predetermined imaging angle and an imaging timing correction amount, of the plurality of imaging timing correction amounts, related to a gantry angle at which the traveling gantry is arranged at the imaging timing; and calculating, on the basis of an X-ray image imaged with a radiation radiated from the radiation source at the radiating timing, three-dimensional data of the X-ray image of a subject.

Abstract: A radiotherapy apparatus control method according to the present invention includes: a step S6 of calculating rotational and first translational correction amounts based on a position and orientation of a first region represented by a radioscopic image of a subject; and a step S9 of calculating a second translational correction amount based on a position and orientation of the second region represented by the radioscopic image and the rotational correction amount; and a step S10 of driving a couch so that it rotates by the rotational correction amount and translates by the second translational correction amount. The first region is larger than the second region. According to such a method, the second region can be arranged in a predetermined position at higher accuracy compared with a case where the position of the couch is adjusted by using the position and orientation of only one of the first and second regions.

Abstract: A radiation tomography method of the present invention includes: calculating a radiating timing, with reference to imaging timing correction data relating a plurality of gantry angles to a plurality of imaging timing correction amounts, on the basis of an imaging timing at which a radiation source supported by a rotating traveling gantry is arranged at a predetermined imaging angle and an imaging timing correction amount, of the plurality of imaging timing correction amounts, related to a gantry angle at which the traveling gantry is arranged at the imaging timing; and calculating, on the basis of an X-ray image imaged with a radiation radiated from the radiation source at the radiating timing, three-dimensional data of the X-ray image of a subject.

Abstract: A radiation therapy apparatus control method includes: calculating a plurality of degrees of similarity corresponding to a plurality of matching target areas based on a radiographic image; calculating a specific image position where a specific image area corresponding to a maximum value of the degrees of similarity out of the matching target areas is positioned in the radiographic image; and calculating a drive amount with which a therapeutic radiation ray irradiation device is driven, based on the specific image position.

Abstract: A radio tomography imaging method according to the present invention includes: calculating a conversion function based on a transmission image picked up by using a radiation emitted from a first radiation source and a transmission image picked up by using a radiation emitted from a second radiation source; wherein a position of the second radiation source when the radiation has been emitted coincides with a position of the first radiation source when the radiation has been emitted, and one of the first and second radiation sources emits the radiation when the other emits the radiation, picking up a plurality of first reconfiguration transmission images and a plurality of second reconfiguration transmission images by using a plurality of first reconfiguration radiations and a plurality of second reconfiguration radiations simultaneously emitted from the first radiation source and the second radiation source; correcting the plurality of first reconfiguration transmission images and the plurality of second recon

Abstract: A specific site location measuring method according to the present invention, includes: calculating matching degrees based on a plurality of transmission images imaged by use of radiation transmitting through a specimen and a template set; selecting a template transmission image from the plurality of transmission images based on the matching degrees; adding a new template generated based on the template transmission image, to the template set; imaging a location measurement transmission image by use of radiation transmitting through the specimen; selecting an optimal template that is the most similar to a portion of the location measurement transmission image, from the template set by performing pattern matching of each of templates of the template set with the location measurement transmission image; and calculating a specific site location based on the location measurement transmission image and the optimal template.

Abstract: A radiotherapy apparatus controller includes: an imperfect three-dimensional data calculating unit configured to calculate an imperfect three-dimensional data based on a plurality of imperfect transmission images which is respectively imaged from a plurality of imperfect directions except a predetermined direction among a plurality of directions different from each other; an imaging unit configured to image an additional transmission image from the predetermined direction by using an imager system; a perfect three-dimensional data calculating unit configured to calculate a perfect three-dimensional data based on the additional transmission image and the imperfect three-dimensional data; and a position calculating unit configured to calculate a position of a part of a subject inside based on the perfect three-dimensional data. The radiotherapy apparatus controller can faster calculate the position with higher precision.