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 |
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.
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