US 11,721,083 B2
X-ray imaging system and method
Jian Chen, Suzhou (CN); and Jianqiang Liu, Suzhou (CN)
Assigned to CARERAY DIGITAL MEDICAL TECHNOLOGY CO., LTD., Suzhou (CN)
Filed by Careray Digital Medical Technology Co., Ltd., Suzhou (CN)
Filed on Apr. 26, 2021, as Appl. No. 17/239,929.
Claims priority of provisional application 63/016,575, filed on Apr. 28, 2020.
Claims priority of application No. 202010380071.4 (CN), filed on May 8, 2020.
Prior Publication US 2021/0330275 A1, Oct. 28, 2021
Int. Cl. A61B 6/00 (2006.01); G06K 9/78 (2006.01); G06V 10/22 (2022.01); G06T 7/70 (2017.01); A61B 6/06 (2006.01); G06V 10/10 (2022.01); G06V 10/25 (2022.01)
CPC G06V 10/22 (2022.01) [A61B 6/06 (2013.01); A61B 6/4208 (2013.01); A61B 6/4429 (2013.01); A61B 6/463 (2013.01); A61B 6/542 (2013.01); G06T 7/70 (2017.01); G06V 10/10 (2022.01); G06V 10/25 (2022.01); G06T 2207/30004 (2013.01); G06V 2201/03 (2022.01)] 10 Claims
OG exemplary drawing
 
1. An X-ray imaging system, comprising an X-ray source, a high-voltage generator, a collimator, a digital flat-panel detector, and a host computer, wherein the host computer is configured to implement a signal transmission and processing among the X-ray source, the high-voltage generator, the collimator and the digital flat-panel detector, wherein the collimator comprises a collimating sheet assembly that makes light form a projection area on a subject; the digital flat-panel detector is configured to have a digital automatic exposure control (DAEC) function and configured to be able to generate a DAEC parameter which comprises an actual DAEC response area and a target gray value,
wherein the system further comprises a programmable logic controller (PLC) and a camera for capturing an image of the subject,
the PLC is configured to display the image captured by the camera on a display screen, and generate a coordinate system and a projection image frame corresponding to the projection area on the display screen, wherein a pixel of a captured image and a coordinate point of the coordinate system form a one-to-one correspondence, and the PLC is configured to automatically determine the projection area and the actual DAEC response area to a desired position according to the captured image and a demand of a diagnostic part and/or position,
the projection area is configured to be adjusted according to the demand of the diagnostic part and/or position or an adjustment of the projection image frame, and the projection area is adjusted by the collimating sheet assembly; the actual DAEC response area is configured to be adjusted according to the demand of the diagnostic part and/or position, and the actual DAEC response area is adjusted by the digital flat-panel detector; the projection area is configured to cover the actual DAEC response area, the display screen is connected to the PLC; the PLC is arranged in the collimator; the projection image frame and a frame of the response area would or would not be displayed on the display screen.