Canon Kabushiki Kaisha

Nonaka Boeki Co., Ltd.

Hideki Nonaka

Isao Kobayashi

Toshio Kameshima

Noriyuki Kaifu

Takashi Ogura

Yutaka Endo

Toshikazu Tamura

Osamu Tsujii

Masakazu Morishita

Tatsuya Yamazaki

Takamasa Ishii

Taro Hiroike

Akira Hirai

Asato Kosuge

Hirokazu Ohguri

Junichi Yamayoshi

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 radiation imaging apparatus is provided that includes: a radiation detection unit arranged to detect radiation; a generation unit configured to generate a radiation image based on the detected radiation; a storage configured to store a plurality of radiation images; a detection unit configured to detect one of a failure in and impossibility of one of taking of the radiation image and storing of the radiation image in the storage; and a communication unit configured to establish communication with an external apparatus when one of the failure and the impossibility is detected.

Radiation imaging apparatus, radiation imaging system, radiation imaging method, and computer-readable medium

A radiation imaging apparatus includes a radiation detection unit that acquires a radiation image, a decision unit that decides whether or not the radiation image meets a decision criterion of success or failure of imaging, and a storage unit that associates and stores the radiation image and a result of the decision.

Radiation imaging apparatus, control method for radiation imaging apparatus, and program

A radiation imaging apparatus includes a sensor unit in which a plurality of detecting elements each configured to detect emitted radiation are arranged, and a notification unit configured to make a notification by a sound. As the sound produced from the notification unit, a sound having a fundamental frequency which satisfies a condition determined based on the number of rows of a predetermined area of an image read out from the sensor unit and a readout frequency of signals of each row is used.

Radiation imaging apparatus and control method therefor

A radiation imaging system comprises a radiation generation unit configured to generate radiation, and at least one imaging unit configured to detect radiation from the radiation generation unit and obtain a radiation image, the imaging unit including a control unit configured to control to operate in one of a first operation mode of capturing the radiation image and controlling the radiation imaging system and a second operation mode of capturing the radiation image.

Radiation imaging system, radiation imaging apparatus, control methods therefor, and non-transitory computer-readable storage medium

A radiation imaging apparatus comprising: a signal generation unit configured to generate a signal value corresponding to charges detected by a radiation detector; an acceleration detection unit configured to detect acceleration applied to the radiation imaging apparatus; a noise measurement unit configured to measure a noise value based on the detected acceleration; a reduction unit configured to reduce the noise value from the signal value; and a radiation irradiation determination unit configured to determine radiation irradiation based on the noise-reduced signal value.

Radiation imaging apparatus, determination apparatus, method of controlling radiation imaging apparatus, calibration method, and storage medium

An X-ray imaging system comprises: an x-ray sensor including a wireless slave device and a first identification information communication unit that is associated with the wireless slave device; a wireless master device configured to wirelessly connect to the wireless slave device; a second identification information communication unit that is associated with the wireless master device and an x-ray tube that irradiates x-rays; and an identification information intermediating unit configured to receive and store identification information of the wireless slave device or on the wireless master device upon approaching one of the first and the second identification information communication units, and to transmit the identification information upon approaching the other one of the first and the second identification information communication units, wherein the wireless master device and the wireless slave device establish wireless connection based on the identification information.

X-ray imaging system, information processing apparatus, methods for controlling x-ray imaging system and information processing apparatus, and recording medium

A wireless communication apparatus includes an X-ray sensor that transmits X-ray image data, a wireless access point that receives the X-ray image data from the X-ray sensor by wireless communication, and an entry apparatus that communicates with the X-ray sensor by short-range communication. A wireless setting apparatus sets wireless communication parameters for starting the wireless communication between the X-ray sensor and the wireless access point to the wireless access point and sets the same wireless communication parameters as those set to the wireless access point to the X-ray sensor by performing short-range wireless communication from the entry device.

Wireless communication apparatus, wireless communication system, wireless communication method, X-ray sensor, and program storage medium

Radiation image data obtained by an imaging unit in a radiation irradiation state is stored. Reference image data obtained by the imaging unit in a radiation non-irradiation state is stored. Reduced radiation image data and reduced reference image data as reduced image data of the radiation image data and the reference image data are generated. Offset correction processing is executed between the radiation image data and the reference image data. After output of the reduced radiation image data and the reduced reference image data to the external device is ended, offset-corrected radiation image data is output to an external device.

Imaging apparatus, control method thereof, and program

To efficiently generate image data by using correction data. First offset data is obtained in advance for each of a plurality of imaging times, and is stored in a second image storage unit. The imaging time requested by a user is selected from the plurality of imaging times by a control unit, and an object is shot in the selected imaging time so as to store image data in a first image storage unit. A correction processing unit offset-corrects the image data by using first offset data corresponding to the selected imaging time and outputs first image data (preview image). In parallel with an output of the first image data, an imaging operation without irradiation is performed to have second offset data on approximately the same conditions as actual imaging obtained by the control unit, and the image data is offset-corrected by using the obtained second offset data so as to output second image data.

Radiation imaging apparatus

To efficiently generate image data by using correction data. First offset data is obtained in advance for each of a plurality of imaging times, and is stored in a second image storage unit. The imaging time requested by a user is selected from the plurality of imaging times by a control unit, and an object is shot in the selected imaging time so as to store image data in a first image storage unit. A correction processing unit offset-corrects the image data by using first offset data corresponding to the selected imaging time and outputs first image data (preview image). In parallel with an output of the first image data, an imaging operation without irradiation is performed to have second offset data on approximately the same condition as actual imaging obtained by the control unit, and the image data is offset-corrected by using the obtained second offset data so as to output second image data.

Image sensing radiation detection pixels of m (columns)&#xd7;n (rows) are divided into, e.g., 72 pixel regions. Image sensing radiation detection pixels belonging to one pixel region are connected to the same read TCP and driving TCP. For example, three regions (AEC radiation detection regions) of the 72 pixel regions have a plurality of AEC radiation detection pixels. An AEC radiation detection pixel has a TFT sensor. Spare wiring lines for the AEC radiation detection pixels are arranged at two side portions of each read TCP. Each spare wiring line is connected to a predetermined circuit in a read device to connect the AEC radiation detection pixels to the predetermined circuit so that the AEC circuit is operated.

Radiographic apparatus and radiographic system

A radiographic apparatus capable of detecting radiation in a stable manner and in an amount suitable for a good image includes AEC detectors arranged in a stripe pattern in the space between pixels converting incident radiation into an electrical signal. The stripes of the AEC detectors are arranged so as not to be parallel to those stripes of an anti-scattering grid.

Radiographic apparatus

An X-ray imaging apparatus including an X-ray generation means for emitting X-rays, and an X-ray detector on which a grid selected from a plurality of different types of grids is removably mountable. The X-ray detector receives the X-rays emitted from the X-ray generation means, and obtains an X-ray image. The X-ray detector includes an automatic exposure control (AEC) detector for detecting the quantity of X-rays emitted from the X-ray generation means and for outputting a signal based on the detected quantity. The X-ray imaging apparatus also includes a control means for controlling the X-ray generation means and the AEC detector, where the control means controls the X-ray generation means based on the signal output from the AEC detector, and where the control means controls the AEC detector using correction data to correct an exposure detection element forming a part of the AEC detector.

X-ray imaging apparatus

In a photoelectric conversion device for reading signals in succession from plural photoelectric converting elements (S -S ), arranged two-dimensionally on a substrate, by successively scanning drive lines (g -g ) in the X-direction thereby transferring signals charges along signal lines in the Y-direction, for reading the signals of the photoelectric converting elements in a partial area, only the arbitrarily selected drive lines for the plural photoelectric converting elements are scanned in succession while the remaining drive lines are not driven or are driven simultaneously for transferring the charges at a timing different from the timing of drive of the arbitrarily selected drive lines.

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Utsunomiya, Japan

Hideki Nonaka