X-ray compound tomoscanning imaging system and method

Abstract

The invention discloses an X-ray compound tomoscanning imaging system and method. The whole imaging system consists of a mechanical device (comprising a shooting box, an X-ray linear array detector, an X-ray bulb tube, a light concentrator, a lifting rotating shaft and a table surface) and a monitoring feedback control system. The method comprises the steps of firstly setting the frame number N of a sequence image needed by super-resolution reconstruction; performing total body X-ray scan on a monitored object to obtain an X-ray planar image; horizontally moving the small distance of a sub-detection unit by the detector until an image sequence of displacements of N frames of sub-pixels is obtained; acquiring an X-ray planar image with a high resolution in a super-resolution reconstructionimage sequence, and finding out an interested point in the image; rotationally tomoscanning the interested point in the fault which the interested point is positioned at so as to reconstruct a computed tomography (CT) image; horizontally moving the small distance of the sub-detection unit by the detector until the image sequence of displacements of N frames of sub-pixels displacement is obtained;and super-resolution reconstructing the image sequence to obtaining the CT image with a high resolution in the super-resolution reconstruction image sequence.

Description

technical field [0001] The invention relates to a computer multiple tomography imaging system, in particular to an imaging method capable of obtaining high-resolution tomographic images, belonging to the field of CT signal and image processing. Background technique [0002] X-ray is a kind of electromagnetic radiation with very short wavelength. It has high penetrating power and can penetrate many substances that are opaque to visible light. Therefore, it is widely used in the fields of medical diagnosis and industrial detection. The common X-ray imaging is accomplished by aligning the X-ray tube with the light beam device and the linear detector composed of the detection and sensing unit to scan the object under test in synchronous motion. X-rays have different penetration capabilities to different densities, structures and components inside the measured object, so the energy induced by the detector through the measured object is also different. When the ray transceiver co...

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of low imaging resolution and poor imaging quality of existing CT imaging equipment, and at the same time, when using the technology of changing time for space, in order to solve the problem that the common super-resolution method is not very specific to the characteristics of CT images question

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