CN101862197A - Whole body X-ray digital imaging system - Google Patents
Whole body X-ray digital imaging system Download PDFInfo
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- CN101862197A CN101862197A CN201010189604A CN201010189604A CN101862197A CN 101862197 A CN101862197 A CN 101862197A CN 201010189604 A CN201010189604 A CN 201010189604A CN 201010189604 A CN201010189604 A CN 201010189604A CN 101862197 A CN101862197 A CN 101862197A
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Abstract
A whole body X-ray digital imaging system relates to a new whole body X-ray digital imaging field and solves the digital imaging problems of being incapable of realizing large area and high resolution of the existing X-ray imaging system. The system comprises an X-ray machine, an O-shaped frame, a precision mobile platform, a plurality of X-ray sensitive CCD detector arrays and a precision mobile guide rail, a plurality of the X-ray sensitive CCD detector arrays are arranged in an arc shape, the X-ray machine is fixed at the external top end of the O-shaped frame, a plurality of the X-ray sensitive CCD detector arrays are fixed at the internal bottom end of the O-shaped frame, the X-ray machine emerges fan-shaped X-ray beams, and the precision mobile platform is fixed on the precision mobile guide rail; and by controlling the precision mobile guide rail, the whole body X-ray digital imaging of a detected body is realized, and the X-ray images obtained by the load of the detected body are spliced into a whole image by adopting software. The invention is suitable for the X-ray digital imaging system with large area of whole body scanning.
Description
Technical field
The present invention relates to X ray digital imaging technology field, relate in particular to a kind of new whole body X-ray digital imaging system.
Background technology
At present, x-ray imaging is the important technical of medical science and industrial nondestructive testing, be subjected to the restriction of x-ray imaging film size, the human body X radial imaging only can once be realized local imaging, X ray Non-Destructive Testing for large-sized object also is like this, and detection resolution is lower, and it is particularly unfavorable to differentiate for the inspection of microlesion.The appearance of the responsive CCD image device of X ray has effectively promoted the development of X ray digital imaging technology, do not need the higher X-ray film of expense, radioscopic image is finished collection, storage with digital form and is handled, the image resolution ratio height, be easy to carry and exchange, required x-ray dose is far smaller than film imaging, has greatly reduced the phototoxis to the patient.But the size of the responsive CCD of monolithic X ray is less, can not realize detecting on a large scale, how to utilize the advantage of the responsive CCD digital image of X ray, realizes that large tracts of land high-resolution digital x-ray imaging is a technical problem that needs to be resolved hurrily at present.
Summary of the invention
The present invention can't realize the problem of large tracts of land, high-resolution digital image for solving existing x-ray imaging system, and a kind of whole body X-ray digital imaging system is provided.
Whole body X-ray digital imaging system, comprise X-ray production apparatus, O type frame, precise mobile platform, the responsive ccd detector array of multi-disc X ray and precision mobile guide rail, the responsive ccd detector array of described multi-disc X ray is arranged in arc with two line interlacing arrangement modes, between the responsive ccd detector array of the multi-disc X ray that described two line interlacings are arranged the overlay region is arranged, the scope of described overlay region walks between the five elements' the detection pixel of the responsive ccd detector array of X ray two; Described X-ray production apparatus is fixed on O type frame outer end, the responsive ccd detector array of X ray is fixed on the interior bottom of O type frame, the centrally aligned of the responsive ccd detector array of the exit portal of described X-ray production apparatus and X ray, the segmental X-ray beam of X-ray production apparatus outgoing, described segmental X-ray beam becomes the central projection relation with the responsive ccd detector array of the X ray of the interior bottom of O type frame, and described precise mobile platform is fixed on the precision mobile guide rail; By the control precision mobile guide rail, realize that detected body is the amount of feeding with the responsive ccd detector array-width of X ray, finish the whole body X-ray digital imaging of detected body, adopt software that the radioscopic image that each amount of feeding of detected body obtains is spliced into general image.
Operation principle of the present invention is: the responsive ccd detector array of X ray is spliced into arc and cooperates the one-dimensional scanning precise mobile platform, thereby realize large-area X ray digital image; The scope that the emissive porwer of described X-ray production apparatus can be accepted X-radiation dosage according to the decay intensity and the responsive ccd detector array of X ray of detected body is suitably adjusted, and the decay intensity of detected body is big, increases the emissive porwer of X-ray production apparatus; The decay intensity of detected body is little, then reduce the emissive porwer of X-ray production apparatus, guarantee the responsive ccd detector array output signal of X ray a suitable range of linearity, and the irradiation time of the responsive ccd detector array of control X ray, guarantee that output image has preferable quality; The less CCD of pixel dimension should be selected in the selection aspect of the responsive ccd detector array of X ray, guarantees that CCD has sufficiently high resolution, for the not high condition of resolution requirement, also can select the bigger CCD of pixel dimension; The responsive ccd detector array of two row X ray that adopts two line interlacings to arrange, the responsive ccd detector array of X ray between two row has certain overlay region mutually, the overlay region size is generally surveyed pixel at two CCD that walk to the five elements, the image that the responsive ccd detector array of described two row X ray obtains produces staggered, can realize the seamless spliced of whole body X-ray image by the image mosaic processing, therefore, the method for the staggered splicing of the responsive ccd detector array of X ray is a preferred version; Precision mobile guide rail need cooperate with the size and the pixel dimension of detector, each amount of feeding is the width of a detector, mobile accuracy is better than half of detector pixel dimension, and stability also is better than CCD surveys pixel dimension half, can guarantee the spatial positioning accuracy of image like this, realize the seamless spliced of image.During operate as normal, mobile platform moves once, trigger the X-ray production apparatus emitting x-ray, shine detected body, the X-radiation that the responsive ccd detector array received decay of X ray has, when triggering reading circuit behind the certain level, signal integration begins to read ccd signal, receiver radiation signal no longer, and output signal forms local strip X ray digital picture through input computer behind the digital quantization.The precise mobile platform motion scan just can be spliced into the whole body X-ray digital picture by software with all local bar graph pictures that obtain fully after one's death.
Beneficial effect of the present invention:
One, the present invention makes full use of that the responsive CCD resolution of X ray height, X-radiation dosage are little, the advantage of digitized image transmission, responsive CCD is arranged in the strip array with X ray, cooperate one dimension motion scan motion platform to realize the large area x-ray digital image, the whole body X-ray digital picture is convenient to Flame Image Process, interchange and storage, the pseudo-colours demonstration of image etc. be can realize by digital image processing techniques, sufferer position or interior of articles damage position highlighted;
Two, adopt the responsive CCD of X ray as the x-ray imaging ccd detector, the radiation dose that needs is little, especially adopts the width of slit restriction X-ray beam, and the radiation damage that compares the patient with conventional film reduces more than 90% at least; Adopt the CCD imaging, the resolution height can reach more than the 10lp/mm, can realize the discovery in local small affected part; Adopt scan mode to obtain X ray numeral whole body image, be particularly useful for patient's (as traffic accident wounded body, battlefield wounded soldier etc.) inspection of the not clear injury of whole body and the fine structure nondestructive inspection in the large-sized object.
Description of drawings
Fig. 1 is the structural representation of whole body X-ray digital imaging system of the present invention;
Fig. 2 is the front view of whole body X-ray digital imaging system of the present invention;
Fig. 3 is the side view of whole body X-ray digital imaging system of the present invention;
Fig. 4 is the vertical view of whole body X-ray digital imaging system of the present invention;
Fig. 5 is the structural representation of the responsive ccd detector array of multi-disc X ray of the present invention.
Among the figure: 1, X-ray production apparatus, 2, O type frame, 3, precise mobile platform, 4, the responsive ccd detector array of X ray, 5, precision mobile guide rail, 6, detected body.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 to Fig. 5, whole body X-ray digital imaging system, comprise X-ray production apparatus 1, O type frame 2, precise mobile platform 3, the responsive ccd detector array 4 of multi-disc X ray and precision mobile guide rail 5, the responsive ccd detector array of described multi-disc X ray 4 is arranged in arc with two line interlacing arrangement modes, 4 of the responsive ccd detector arrays of the multi-disc X ray that described two line interlacings are arranged have the overlay region, and the scope of described overlay region walks between the five elements' the detection pixel of the responsive ccd detector array 4 of X ray two; Described X-ray production apparatus 1 is fixed on O type frame 2 outer ends, the responsive ccd detector array 4 of X ray is fixed on the interior bottom of O type frame 2, the centrally aligned of the responsive ccd detector array 4 of the exit portal of described X-ray production apparatus 1 and X ray, the segmental X-ray beam of X-ray production apparatus 1 outgoing, 4 one-tenth central projection relations of described segmental X-ray beam and the responsive ccd detector array of the X ray of the interior bottom of O type frame 2, described precise mobile platform 3 is fixed on the precision mobile guide rail 5; By control precision mobile guide rail 5, realize that detected body 6 is the amount of feeding with the detector width in the responsive ccd detector array 4 of X ray, finish the whole body X-ray digital imaging of detected body 6, adopt software that the radioscopic image that each amount of feeding of detected body 6 obtains is spliced into general image.
The length of the responsive ccd detector array 4 of the described X ray of present embodiment is greater than the width of detected body 6, the responsive ccd detector array 4 of X ray obtains the local radioscopic image of detected body 6 each imagings, and the scope of described local radioscopic image is identical with the width range of the responsive ccd detector array 4 of X ray.
The described precise mobile platform 3 of present embodiment is the plastics mobile platform, adopts the plastics mobile platform to be easy to X ray and penetrates, and reduces the emissive porwer of X-ray production apparatus 1.
The mobile accuracy of the described precision mobile guide rail 5 of present embodiment be the responsive ccd detector array 4 of X ray the detection pixel dimension 1/2nd; If surveying pixel dimension is 18 microns, the mobile accuracy of precision mobile guide rail 5 is 9 microns; If surveying pixel dimension is 22 microns, the mobile accuracy of precision mobile guide rail 5 is 11 microns.
The responsive ccd detector array of the described X ray of present embodiment 4 width are by the width decision of the responsive ccd detector array 4 of selected X ray, the width of the responsive ccd detector array 4 of staggered pattern X ray is more than 2 times of the responsive ccd detector array of X ray 4 width, if the responsive ccd detector array of X ray 4 width are 18 millimeters, then the responsive ccd detector array of X ray 4 width are greater than 36 millimeters, and the amount of feeding of precise mobile platform 3 is 18 millimeters; If detector width is 22.5 millimeters, then the width of array 4 is greater than 45 millimeters, and the amount of feeding of precise mobile platform 3 is 22.5 millimeters.
The radioscopic image that the described employing software of present embodiment obtains each amount of feeding of detected body 6 is spliced into software in the general image can adopt the PhotoShop or the image mosaic software of establishment voluntarily.
Claims (5)
1. whole body X-ray digital imaging system, comprise X-ray production apparatus (1), O type frame (2), precise mobile platform (3), the responsive ccd detector array (4) of multi-disc X ray and precision mobile guide rail (5), it is characterized in that, the responsive ccd detector array of described multi-disc X ray (4) is arranged in arc with two line interlacing arrangement modes, between the responsive ccd detector array of the multi-disc X ray that described two line interlacings are arranged (4) overlay region is arranged, the scope of described overlay region walks between the five elements' the detection pixel of the responsive ccd detector array of X ray (4) two; Described X-ray production apparatus (1) is fixed on O type frame (2) outer end, the responsive ccd detector array of X ray (4) is fixed on the interior bottom of O type frame (2), the centrally aligned of the responsive ccd detector array of the exit portal of described X-ray production apparatus (1) and X ray (4), the segmental X-ray beam of X-ray production apparatus (1) outgoing, described segmental X-ray beam becomes the central projection relation with the responsive ccd detector array of X ray (4) of the interior bottom of O type frame (2), and described precise mobile platform (3) is fixed on the precision mobile guide rail (5); By control precision mobile guide rail (5), realize that detected body (6) is the amount of feeding with ccd detector width in the responsive ccd detector array of X ray (4), finish the whole body X-ray digital imaging of detected body (6), adopt software that the radioscopic image that each amount of feeding of detected body (6) obtains is spliced into general image.
2. whole body X-ray digital imaging system according to claim 1, it is characterized in that, the length of the responsive ccd detector array of described X ray (4) is greater than the width of detected body (6), the responsive ccd detector array of X ray (4) obtains the local radioscopic image of the each imaging of detected body (6), and the scope of described local radioscopic image is identical with the width range of the responsive ccd detector array of X ray (4).
3. whole body X-ray digital imaging system according to claim 1 is characterized in that, described precise mobile platform (3) is the plastics mobile platform.
4. whole body X-ray digital imaging system according to claim 1 is characterized in that, the mobile accuracy of described precision mobile guide rail (5) be the responsive ccd detector array of X ray (4) the detection pixel 1/2nd.
5. whole body X-ray digital imaging system according to claim 1, it is characterized in that, responsive ccd detector array (4) width of described X ray is by the width decision of the responsive ccd detector of the X ray of selecting for use, the width of the responsive ccd detector array of staggered pattern X ray (4) is greater than 2 times of the ccd detector width, and the amount of feeding of precise mobile platform (3) is responsive ccd detector array (4) width of X ray.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010189604A CN101862197A (en) | 2010-06-02 | 2010-06-02 | Whole body X-ray digital imaging system |
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| CN201010189604A CN101862197A (en) | 2010-06-02 | 2010-06-02 | Whole body X-ray digital imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142979A1 (en) * | 2019-01-10 | 2020-07-16 | Shenzhen Xpectvision Technology Co., Ltd. | An imaging system having radiation detectors of different orientations |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658796A (en) * | 2002-06-03 | 2005-08-24 | 株式会社日立医药 | Multi-slice X-ray CT device |
| CN1913830A (en) * | 2004-01-29 | 2007-02-14 | 皇家飞利浦电子股份有限公司 | Computed tomography imaging with pixel staggering and focal spot modulation |
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2010
- 2010-06-02 CN CN201010189604A patent/CN101862197A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658796A (en) * | 2002-06-03 | 2005-08-24 | 株式会社日立医药 | Multi-slice X-ray CT device |
| CN1913830A (en) * | 2004-01-29 | 2007-02-14 | 皇家飞利浦电子股份有限公司 | Computed tomography imaging with pixel staggering and focal spot modulation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020142979A1 (en) * | 2019-01-10 | 2020-07-16 | Shenzhen Xpectvision Technology Co., Ltd. | An imaging system having radiation detectors of different orientations |
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Open date: 20101020 |