Double source three-dimensional image forming method and system

A three-dimensional, imaging system technology, applied in the field of radiation imaging, can solve the problems of difficult rotation of X-ray sources, detectors and equipment to be detected, poor imaging quality of single-segment linear scanning, etc., achieves high market application potential, and facilitates engineering realization. , the effect of simple mechanical design

Active Publication Date: 2008-07-30
TSINGHUA UNIV +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a three-dimensional stereoscopic imaging system and imaging method using double-segment linear orbital scanning to solve the difficulty in rotating the X-ray source, detector and equipment to be i

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  • Double source three-dimensional image forming method and system
  • Double source three-dimensional image forming method and system
  • Double source three-dimensional image forming method and system

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Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 It shows a schematic top view of the three-dimensional imaging system according to the embodiment of the present invention in the moving direction of the object to be inspected; figure 2 A schematic side view of the three-dimensional imaging system according to this embodiment is shown. Such as figure 1 and 2 As shown, the imaging system of the present invention includes a radiation generating device, a data acquisition subsystem, a main control and a data processing computer.

[0018] Radiation generating devices include X-ray accelerators, X-ray machines or radioactive isotopes, and corresponding auxiliary equipment. In this embodiment, the ray generating device includes two X-ray sources 101 and 102, which respectively move linearly along two guide rails 201 and 202 placed at a certain angle. on, such as figure 2 shown. The tw...

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Abstract

The invention provides a novel three dimensional imaging system and the imaging method, two X-ray sources and two detectors are adopted, the two X-ray sources respectively move along rectilinear lead rails which are at an angle and arranged in a stagger way. The array of the detectors is fixed, and the detected object moves along a straight line vertical to the plane where the X-ray sources and the detectors are arranged. The imaging system and the imaging method can realize the actual three dimensional imaging, and have the advantages that the structure is relatively simpler, the objects to be detected or the X-ray sources and the detectors need not to rotate, the detection speed is fast, and the cargo transiting speed is faster, etc.; the invention has the potential of being applied to the rapid safety inspection field and the big object inspection filed. Compared with a single source and single line scanning structure, the invention can realize true three dimensional image detection, the image quality is obviously better than that of the single source and single line scanning structure.

Description

technical field [0001] The present application relates to the field of radiation imaging, and more specifically, to a three-dimensional imaging system and imaging method. Background technique [0002] Security inspection is of great significance in the fields of anti-terrorism and combating drug trafficking and smuggling. After 911 in the United States, public places such as aviation and railways paid more and more attention to safety inspections. With the deepening of the crackdown on drug trafficking and smuggling, the inspection requirements for customs containers, luggage and other items are also getting higher and higher. [0003] The current security inspection system is dominated by radiation imaging systems, and in the field of radiation imaging, perspective imaging is the mainstay. Three-dimensional imaging systems are relatively less used. This is because: a practical security inspection system generally requires online real-time inspection, which requires the in...

Claims

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Application Information

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IPC IPC(8): G01N23/04
Inventor 张丽康克军刘以农李元景邢宇翔李亮赵自然肖永顺
Owner TSINGHUA UNIV
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