CT projection drawing generation method and device

Abstract

The invention relates to a CT projection drawing generation method and device, belongs to the technical field of ray image generation, and solves the problems that an existing X-ray image is projectedto a two-dimensional image and overlapped with the two-dimensional image, and dangerous prohibited goods in a package are difficult to distinguish. The method comprises the steps of obtaining an image sample library; constructing a generative adversarial network, and training the generative adversarial network through training samples of the image sample library; constructing DR security check equipment which comprises a shooting device and a trained generator; shooting DR projection drawings of the to-be-detected object at multiple angles through a shooting device; based on the DR projectiondrawings of the multiple angles, generating multiple supplementary DR projection drawings of different angles different from the multiple angles through a trained generator; and based on the DR projection drawings of the multiple angles and the multiple complementary DR projection drawings of the different angles, generating CT projection drawings, corresponding to the multiple angles and the multiple different angles, of the to-be-detected object. And obtaining three-dimensional reconstruction volume data to partially simulate CT, so that expressed image information is more comprehensive andperfect.

Description

technical field [0001] The present invention relates to the technical field of radiographic image generation, in particular to a method and device for generating a CT projection image. Background technique [0002] X-ray radiation imaging technology is the mainstream technology in the security inspection system widely used in various countries, especially in airports, stations, customs, docks, exhibition halls and other public places, X-ray security inspection machines are used to check passenger luggage, cargo containers, etc. Strict inspection. In X-ray security inspection equipment, dual-view or even multi-view security inspection systems are more popular because they can accurately judge the detected object from multiple angles for contraband. [0003] Due to its strong penetration, multiple angles, and high precision, security CT has become the core security inspection equipment in key security fields such as airports. However, the security CT market is expensive, and ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the embodiment of the present invention aims to provide a method and device for generating a CT projection image, which is used to solve the problem that the current security inspection CT market is expensive, the model is large and inconvenient to move, and the X-ray images are projected onto two-dimensional images and overlap each other. , it is difficult to distinguish the dangerous contraband inside the package

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