Radiation imaging system and image processing method

Abstract

The invention discloses a radiation imaging system and an image processing method. The system comprises a ray generator which is disposed at one side of a detection channel and is used for generating a front view angle ray beam and an inclined view angle ray beam, and a front view angle detector and an inclined view angle detector which are disposed at the other side of the detection channel and are respectively used for receiving the front view angle ray beam and the inclined view angle ray beam, so as to obtain a front view angle image and an inclined view angle image. The method comprises the steps: taking the front view angle image as the reference, and carrying out the correction of the inclined view angle image, so as to enable the height of the inclined view angle image and the height of the front view angle image to be the same. According to the invention, the system and method can solve a problem of automatic scanning of a vehicle / goods and 3D displaying of a radiation image under the condition that the radiation dosage is safe for a driver, and carry out the correction of the image, so as to improve the 3D display effect.

Description

technical field [0001] The invention relates to the field of radiation technology, in particular to a radiation imaging system and an image processing method. Background technique [0002] Using high-energy radiation to automatically scan and inspect high-speed moving targets such as vehicles, it can search for smuggled, illegal, and prohibited items without interrupting the high-speed passage of vehicles. It has become an ideal means for 100% inspection of cargo vehicles. At present, most of the existing vehicle / cargo radiation imaging security inspection equipment can only display two-dimensional information, usually conventional 2D images. The technology disclosed in the patent document CN101210895B published on August 27, 2008 can obtain certain depth information , but the final results are only displayed on different 2D images. However, due to the superposition of radiation imaging image information, complex content, and spatial deformation, it is usually difficult for...

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Problems solved by technology

The patent document CN101953694B published on March 23, 2011 proposes a medical and industrial X-ray real-time stereoscopic imaging device, which can realize X-ray stereoscopic imaging, and has the advantages of simplicity, speed, and low dose, but the proposed system has a limited source of radiation. In order to contain two X-ray tubes, it is necessary to use a moving platform to realize the movement of the ray source and the detector around the detection target. This method is difficult to use for vehicle / cargo detection

[0005] At present, there is no relevant information to disclose the 3D radiation imaging security scanning technology for the driver to pass through the vehicle directly at high speed without getting out of the car

The stereoscopic imaging device disclosed in the patent document CN102411157B published on May 23, 2012 can realize stereoscopic imaging, but it does not consider the radiation safety design of the driver, nor does it consider the image produced by the different positions of the detectors with different viewing angles relative to the radiation source. difference

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