Multi-perspective stereoscopic radiation imaging system and method

A radiation imaging and multi-view technology, applied in the field of radiation imaging, can solve the problems of little practical value, unsatisfactory image recognition effect, image segmentation, and difficult spatial positioning, etc., and achieve the effect of improving the detection ability

Active Publication Date: 2013-07-31
TSINGHUA UNIV
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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 t

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  • Multi-perspective stereoscopic radiation imaging system and method
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  • Multi-perspective stereoscopic radiation imaging system and method

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[0035] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are only used to illustrate the present invention, but not to limit the scope of the present invention.

[0036] like figure 2 As shown, the multi-view stereo radiation imaging system of the present invention includes: a ray source 21 , a collimator 22 , a detector system 24 , an amplifier 25 , an image data acquisition system 26 , a data processing system 27 and an image display system 28 .

[0037] The ray source 21 emits rays through a collimator 22 to generate at least two ray beams, and the ray source 21 is an X-ray source, an isotope ray source or an accelerator ray source.

[0038] The detector system 24 receives the rays passing through the object under inspection, converts them into data signals, and sends them to the image data acquisition system 26 .

[0039] The amplifier 25 receive...

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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...

Claims

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Application Information

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IPC IPC(8): G01N23/04G01B15/04
Inventor 吴志芳安继刚苗积臣
Owner TSINGHUA UNIV
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