Light radiation field visual detection method and light radiation field visual detection equipment

Abstract

The invention relates to a light radiation field visual detection method and light radiation field visual detection equipment, and the method comprises the following steps: obtaining a light field image which is formed by visible light emitted by an X-ray machine radiation field indication lamp and shot by a camera module, wherein the light field image comprises an illuminated light field region;acquiring a radiation field image of X-rays emitted by an X-ray machine and shot by the camera module on a radiation field detection plate, wherein the radiation field image comprises a radiation field area; analyzing the light field image to obtain image attributes of the light field area; analyzing the radiation field image to obtain image attributes of the radiation field area; and calculatinga light field consistency parameter of the X-ray machine according to the light field area and the image attributes of the light field area, wherein the light field consistency parameter of the X-raymachine comprises an offset parameter of the light field area relative to the light field area.

Description

technical field [0001] The invention relates to a light field detection technology, in particular to a light field visual detection method and light field visual detection equipment for an X-ray machine. Background technique [0002] The light field refers to the area defined by the simulated light of the head of the X-ray machine (that is, the X-ray camera) on the incident surface. The radiation field refers to the projection of the X-ray beam of the X-ray machine on the incident surface. To be precise, it is the area defined by 50% of the dose intensity in the central area of ​​the beam. In clinical diagnostic examinations, since the field of view cannot be determined visually, the field of view is usually simulated with visible light. The light field consistency detection is mainly to verify the degree of coincidence between the light field formed by the light and the field formed by X-rays, including the degree of offset between the light field and the center or boundar...

AI Technical Summary

Problems solved by technology

[0010] 1) Film imaging method: This is a classic method, but the disadvantage is that it needs to be developed, which is time-consuming and expensive to use (calculate the film cost);

[0011] 2) Fluorescence method: This method was developed and mainly used for radiotherapy. The disadvantage is that it is expensive (imported products), requires a large amount of exposure, and cannot save data

Due to the need for dark room observation and the fast decay of fluorescence brightness, the detection process is relatively laborious, and because the sharpness of the fluorescence boundary is not enough, the measurement error is relatively large;

[0012] 3) Fluorescence video recording method: it is composed of a detection board, a camera device, a data receiving and storage device, and is relatively complicated

The disadvantages are: ①Fixing the camera from above requires you to find the angle and distance yourself, and adjust the focus each time, which will affect the image clarity

②The reading is manual. You need to insert the SD card of the camera into the computer, use the player, manually determine the brightest frame of image, and pause the player. You need to be quick-sighted and read the data on the scale. too many factors

Images