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Digital X-ray panoramic imaging method

A panoramic imaging and ray technology, applied in the field of digital X-ray panoramic imaging, can solve problems such as difficulties in a wide range of imaging applications, and achieve the effect of eliminating errors

Inactive Publication Date: 2013-05-08
ZHEJIANG KANGYUAN MEDICAL DEVICE
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Problems solved by technology

Therefore, it is difficult for applications requiring large-scale imaging

Method used

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  • Digital X-ray panoramic imaging method

Examples

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Embodiment Construction

[0013] Combine below figure 1 and figure 2 Make a specific description of the digital X-ray panoramic imaging method:

[0014] First, synchronously and automatically translate the X-ray source and X-ray flat panel detector from position "1" to position "2" and obtain image "1" and image "2" correspondingly, the X-ray source and X-ray The speed and distance that the flat panel detector moves are controlled by the system motor. In actual use, due to factors such as mechanical motion errors and human body motion, the displacement estimated by any automatic motion device will have a large error. If the results of this displacement estimation are directly used to fit the images at positions "1" and "2", the fitted images will be distorted, so the characteristics of the image itself should be used to accurately calculate the positions.

[0015] Secondly, process the overlapping part of image "1" and image "2" to calculate the overall motion displacement; as figure 1 As shown, t...

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Abstract

The invention discloses a digital X-ray panoramic imaging method. The method includes: first, synchronously and automatically translating an X-ray source and an X-ray flat panel detector from a position '1' to a position '2', and correspondingly obtaining an image '1' and an image '2'; second, processing the overlapping part of the image '1' and the image '2' to calculate bulk motion displacement; and at last, according to the bulk motion displacement, matching the image '1' and the image '2' to obtain a final imaging result. The self characteristics of images are used to accurately calculate the positions to eliminate the self movement error of an article to be detected and the error caused by a motor control system, so that the limit of self size of a detector is broken through to develop a large-scale image, and the size of the final developed image is larger than that of the detector.

Description

technical field [0001] The invention relates to a digital X-ray panoramic imaging method. Background technique [0002] The digital X-ray imaging device system uses the X-ray flat panel detector (Flat Panel) to receive the projected X-rays for imaging. The size of the image is therefore limited by the size of the detector. The largest commercially available detector is 43cm*43cm. Usually the larger the detector, the more expensive it is. Therefore, it poses difficulties for applications requiring large-scale imaging. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a digital X-ray panoramic imaging method, which can break through the limitation of the size of the detector itself and form a large-scale image, and the size of the final image will be larger than the size of the detector. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutio...

Claims

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Application Information

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IPC IPC(8): G03B42/02
Inventor 陈建锋
Owner ZHEJIANG KANGYUAN MEDICAL DEVICE
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