Multi-perspective stereoscopic radiation imaging system and method

Abstract

The invention discloses a multi-perspective stereoscopic radiation imaging system and a method. The system comprises a ray source and a collimator, wherein emitted ray from the ray source passes through the collimator and form at least two ray beams and angle between any two adjacent ray beams is 3-15 DEG C; a detector system for receiving the rays passing through detected objects, transiting the ray into digital signals and sending to an image data acquisition system; a data process system for processing the image data; and an image display system for displaying the processed images, wherein the detector system comprises at least two detector arrays, images obtained by any two sets of the detector can generate a stereoscopic image of a viewing angle, and images of multiple sets of the detectors can obtain stereoscopic images of a plurality of viewing angles. Compared with single-perspective detection apparatus, the system provided by the invention can realize multi-perspective stereoscopic imaging of the detected objects through a plurality of detector arrays and the collimator, and can distinguish overlapped objects at back and forth in the objects, determine a concrete position of suspicious objects, and improve detection capacity.

Description

technical field [0001] The invention relates to the technical field of radiation imaging, in particular to a multi-view stereo radiation imaging system and method. Background technique [0002] The large-scale object stereoscopic imaging detection device is an upgraded product of conventional container, freight train and motor vehicle detection technology. Requirements, radiation imaging detection systems for containers, motor vehicles and freight trains are equipped in large quantities and exported to many countries. [0003] Currently widely used radiation imaging detection systems for containers, freight trains and cars all use a single-row detector array, and its system composition is as follows: figure 1 As shown, the radiation emitted by the radiation source 11 is collimated by the collimator 12 into a fan-shaped beam, and after passing through the object 13 to be inspected, the transmitted radiation is measured by the linear array detector array 14. Direction moveme...

AI Technical Summary

Problems solved by technology

Since the shapes, positions, and varieties of the items in the container are different and cannot be known in advance, it is very difficult for this method to perform image segmentation and spatial positioning of the items of interest, and the image recognition effect is not ideal. not big

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