Intelligent digital X ray exposure control device and method

Abstract

The invention provides an intelligent digital X ray exposure control device and method. The device includes a double-camera automatic calibration module, a double-camera target thickness chart reestablishing module, an input parameter standardizing module, an interest area extraction module based on photographed parts, an image error correcting module based on the photographed parts, a sample settraining module based on the photographed parts and an exposure parameter estimation module based on the photographed parts. According to the intelligent digital X ray exposure control device and method, appropriate exposure parameters can be selected intelligently according to the patient information and the actual thickness of the photographed parts. Not only can the imaging quality be ensured,but unnecessary radiation dosage likely to be performed on patients can be reduced, and moreover, a neural network can constantly learn new illness cases during usage to perfect the exposure control effect. During clinical usage, the intelligent digital X ray exposure control device does not rely on clinical experience of technicians and is convenient to operate without limits, and therefore the device is an ideal automatic exposure control system.

Description

technical field [0001] The invention relates to an intelligent digital X-ray exposure control device and method, belonging to the field of digital X-ray imaging equipment. Background technique [0002] Digital X-ray imaging equipment often controls the quality of exposure images by adjusting exposure parameters (tube voltage, tube current, and exposure time). Among them, the tube voltage mainly affects the contrast of the X-ray image, while the tube current and exposure time mainly affect the clarity of the X-ray image. Due to the various parts of the patient and the variety of patient shapes, technicians usually have to rely on clinical experience to adjust the exposure parameters, which is complicated to operate and difficult to guarantee the shooting quality. The main purpose of automatic exposure control is to ensure that the ideal original image can be obtained when shooting with X-ray imaging equipment, and at the same time control the shooting dose and reduce the pos...

AI Technical Summary

Problems solved by technology

If there is no correspondence, inaccurate exposure dose control may occur

Similarly, when shooting limbs, it is also necessary to adjust the measurement field combination and select a measurement field that can be covered by the limbs; if the shooting part cannot cover the measurement field, it will be inconvenient to use the automatic exposure system of the ionization chamber, which may cause The exposure is cut off early, so that the captured original image is underexposed

Similarly, when shooting children, because of their sensitivity to dose, it is not possible to copy the exposure threshold of adults for automatic exposure control. At this time, we can only rely on the clinical experience of the shooting technician

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