Canon Kabushiki Kaisha

Hirokazu Ohguri

Taro Hiroike

Tadahiko Iijima

Toshikazu Tamura

Hideki Nonaka

Shinji Yamanaka

Toshiya Ishioka

Shinya Katsumata

A mechanism to select an optimum standby state canceling method in terms of power consumption. A radiographic apparatus is configured to capture a radiographic image based on an incident radiation and operates in any of a plurality of standby states different in power consumption. Each of the standby states is less in power consumption than a radiography-enabled state where the radiographic apparatus is enabled to capture the radiographic image. A selection unit selects a standby state from the plurality of standby states so that a transition time is shorter than an irradiation preparation time. The transition time is a time necessary for the radiographic apparatus to make a transition from the standby state to the radiography-enabled state. The irradiation preparation time is a time necessary for a radiation generation apparatus configured to generate a radiation to prepare irradiation of the radiation after a radiation irradiation preparation request is received.

Radiographic apparatus, method of controlling the same, radiographic system, and storage medium

A radiography system, comprises: one or more radiography apparatuses configured to detect radiation and capture a radiation image; and a plurality of control apparatuses configured to control the one or more radiography apparatuses, the one or more radiography apparatuses and the plurality of control apparatuses being connected to a communication path. The one or more radiography apparatuses transmit information for identification of the one or more radiography apparatuses to the plurality of control apparatuses in parallel via the communication path, and the plurality of control apparatuses receive the information for identification in parallel.

Radiography system, radiography apparatus used in the radiography system, and control apparatus used in the radiography system

A radiography system comprising a radiography device and a power supply device is provided. The radiography device includes a sensor unit for obtaining a radiographic image and is capable of non-contact power reception, and the power supply device is capable of non-contact power supply to the radiography device. In a period in which a fluctuation in a power supply frequency of the power supply from the power supply device to the radiography device affects a signal obtained by the radiography device from the sensor unit, the power supply device supplies power to the radiography device at a constant power supply frequency.

Radiography system

A control apparatus that controls medical imaging, includes: a communication unit configured to communicate with an imaging unit via a communication path that includes a wireless channel; an imaging control unit configured to cause the imaging unit to execute a plurality of imaging modes including a first imaging mode and a second imaging mode which obtains a larger data amount from imaging than the first imaging mode; a restricting unit configured to restrict transition of the imaging mode when a value indicating the state of communication with the imaging unit by the communication unit is smaller than a threshold; and a setting unit configured to set different threshold values for a case in which the first imaging mode transits to the second imaging mode and a case in which the second imaging mode transits to the first imaging mode.

Control apparatus, control system, control method, medical imaging apparatus, medical imaging system, and imaging control method for switching imaging modes based on communication state

A radiation imaging apparatus includes a non-volatile storage unit and a radiation sensor unit which performs imaging on the intensity distribution of radiation irradiation from a radiation source. The non-volatile storage unit includes the first storage area in which the first sensor characteristic information of the radiation sensor unit obtained based on radiation irradiation from the first radiation source is stored, and the second storage area in which the second sensor characteristic information of the radiation sensor unit obtained after the first sensor characteristic information based on radiation irradiation from the second radiation source different from the first radiation source is stored.

Radiation imaging apparatus and radiation imaging system

A radiation imaging control apparatus includes an exposure switch configured to instruct radiation emission, an acquisition unit configured to acquire a first signal indicating that the exposure switch is pressed, a first connection unit configured to detachably connect with a control unit of a radiant ray detector to transmit a second signal indicating the driving state of the radiant ray detector, a second connection unit configured to detachably connect with a control unit of a radiant ray generation apparatus to transmit a specific signal, and a control unit configured to perform control to output the specific signal via the second connection unit upon acquisition of the first and second signals, wherein the second connection unit is a connector for making wired connection.

Radiant ray generation control apparatus, radiation imaging system, and method for controlling the same

A radiographing system includes a plurality of radiation imaging apparatuses and a control apparatus. The control apparatus includes a memory, a processor, a shifting unit, a determining unit, and a disabling unit. The shifting unit shifts the radiation imaging apparatus into the radiographing enabled state in which radiation is detected and a radiographic image is generated. The determining unit determine whether to disable shifting the radiation imaging apparatus into the radiographing enabled state based on control for radiographing using a different radiation imaging apparatus currently in the radiographing enabled state. The disabling unit disables shifting the radiation imaging apparatus into the radiographing enabled state based on a determination result.

Radiographing system, control apparatus, radiation imaging apparatus, and method for controlling radiographing system

An image processing apparatus comprising: an obtaining unit configured to obtain a plurality of radiation images that have been sensed without arranging an object and include a defect, and information about the defect included in the radiation images; and a generation unit configured to generate a sensitivity correction image not including the defect based on the plurality of radiation images and the information about the defect.

Image processing apparatus, radiation imaging apparatus, control methods for them, gain image creation method, radiation imaging system, and storage medium

Upon detecting irradiation of X-rays, an X-ray imaging apparatus stops driving scanning lines and makes a transition into an electric charge accumulating state. The X-ray imaging apparatus transmits, to an image processing apparatus, a digital value of a current that flows through a bias line at a timing at which the electric charge accumulating state starts and a scanning line number for identifying a scanning line on which the scan has stopped as defect correction information.

Growing community of inventors

Funabashi, Japan

Hirokazu Ohguri