CN105763817A - Image erasing device and method, and image scanning system - Google Patents
Image erasing device and method, and image scanning system Download PDFInfo
- Publication number
- CN105763817A CN105763817A CN201610142911.7A CN201610142911A CN105763817A CN 105763817 A CN105763817 A CN 105763817A CN 201610142911 A CN201610142911 A CN 201610142911A CN 105763817 A CN105763817 A CN 105763817A
- Authority
- CN
- China
- Prior art keywords
- image
- scanning
- module
- row
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
The application embodiment provides an image erasing device and method, and an image scanning system. The device comprises N*M same light sources, wherein N is the quantity of rows, M is the quantity of columns, the distance di between luminescence centers of any two adjacent light sources in an ith row is the same, and N>=1, and M>=2. Compared with the prior art, the invention provides a light source array composed of light sources having same luminescence characteristics, allowing all areas of an image plate to receive uniform light irradiation, improving illumination uniformity and image erasing device work efficiency, and obtaining complete and consistent erasing effects.
Description
Technical field
The invention belongs to X ray computer photographic imagery field, the apparatus and method especially Using Image Plate wiped and image-scanning system.
Background technology
Use X-ray production apparatus row computer X-ray photography (ComputedRadiology, CR) time, when X ray penetrates imaging object, incide the Using Image Plate (ImagingPlate containing Optical-excitation fluorescent powder, IP), on, a frame latent image (LatentImage) can be produced and be stored in Using Image Plate.With the laser pumping Using Image Plate of certain wavelength, Using Image Plate can launch the fluorescence that intensity is consistent with latent image Energy distribution, and these fluorescence are collected, convert the signal of telecommunication digitized to, thus latent image converts to the two-dimensional digital image that can transmit and store.
After normal image read work completes, Using Image Plate is inevitably present remaining image, can quickly reuse in order to ensure Using Image Plate, it is necessary to artificially remaining image is wiped.
Image erasing generally uses comparatively efficient red-light LED light source, but single source light intensity is limited, and lighting angle can not be too big, therefore, it is difficult to ensure have all regions on the Using Image Plate of certain area can obtain enough and uniform light intense irradiation.Therefore how to improve the uniformity of light intensity and raising large area light irradiation to improve the work efficiency of image erasing apparatus, be the key issue solved at present.
Summary of the invention
It is an object of the invention to provide a kind of image erasing apparatus and method, scanning system, the work efficiency of uniformity and image erasing apparatus to improve illumination, it is thus achieved that complete and consistent erasing effect.
For achieving the above object, the embodiment of the present invention provides a kind of image erasing apparatus on the one hand, and described image erasing apparatus includes: N × M identical light source, and described N is the quantity of row, described M is the quantity of row, and the centre of luminescence distance d of two light sources of arbitrary neighborhood in the i-th rowiIdentical；Described N >=1, described M >=2.
Preferably, the centre of luminescence distance d of two light sources of arbitrary neighborhood in all rowiIdentical.
Preferably, the centre of luminescence distance d of two light sources of arbitrary neighborhood in described same a linei≥d0, described d0It it is the minimum centre of luminescence distance of two light sources.
Preferably, described N >=2, and the straight line at each row place of the straight line at each column place of described light source and described light source is non-perpendicular relation.
Preferably, the centre of luminescence distance d of two light sources of arbitrary neighborhood in every stringij≥d0, wherein said dijFor the centre of luminescence distance of the i-th row and jth line light source in same string, and described j=i+1.
Preferably, di=N × d`0, d`0For the minima of the centre of luminescence distance of two light sources projector distance in the row direction in same string.
Preferably, L0=(1/N+M 2) dI,
Described L0Length for optical power detection region；
Described Using Image Plate is at the width w≤L being perpendicular in its direction of motion0。
Another aspect of the present invention additionally provides a kind of image method for deleting, is applied in above-mentioned image erasing apparatus, and described image method for deleting includes: move to wipe image along the direction of the row being perpendicular to described image erasing apparatus by Using Image Plate.
Preferably, described image method for deleting includes: all described light sources carry out identical power and switch time controls.
One aspect of the present invention additionally provides a kind of image-scanning system, described image-scanning system, is scanned obtaining the device of image scanning of image including Using Image Plate with to described Using Image Plate；
Described device of image scanning includes: image erasing apparatus described above, central control module and the Using Image Plate transmission module, image scanning module and the image processing module that are all electrically connected with described central control module；
Described Using Image Plate transmission module includes position detection unit and Using Image Plate gear unit, and described image processing module includes image just locating module, image pinpoint module and image rotation module；
Described position detection unit carries out detection obtain second position testing result for the position of described Using Image Plate carries out detection acquisition primary importance testing result the laser position to described image scanning module；
Described Using Image Plate gear unit for according to described primary importance testing result determine described Using Image Plate enter described image scanning module CD feeding port after drive described Using Image Plate to move to the outlet of described image scanning module；
Described central control module controls described image scanning module when being used for the CD feeding port determining the described Using Image Plate described image scanning module of entrance according to described primary importance testing result and opens image scanning；
Described image scanning module is used for utilizing laser rotary mode that described Using Image Plate is entered line scans, it is thus achieved that the digital signal streams of each row also sends described digital signal by described central control module and flow to described image processing module；
Described image just locating module, for carrying out image initial location according to described primary importance testing result, described second position testing result and described digital signal streams, generates initial pictures matrix；
Described image pinpoint module is for judging whether each row of described initial pictures matrix, each column exist signal and generate exact image matrix according to judged result, and described exact image matrix is the minimum matrix comprising effective image-region；
Described image rotation module is for calculating image inclination angle Φ according to the apex coordinate of described exact image matrix, if Φ ≠ 0, then by image rotation algorithm by image clockwise or rotated counterclockwise by angle Φ to generate final image matrix.
Preferably, described position detection unit includes position sensor R and position sensor A；
Described position sensor R is positioned at the CD feeding port place of described image scanning module, is used for detecting whether described Using Image Plate arrives described CD feeding port；
Described position sensor A is for detecting the position of laser that described image scanning module is launched, outside described position sensor A is positioned at described image scanning module and is positioned at the row region of described Using Image Plate；
Described image is locating module just, for when determining described Using Image Plate and arriving pre-starting position, digital signal acquiring and record is started at next line, when determining described laser and arriving described position sensor A, start the digital signal record of current line, when determining described laser and arriving row end position, terminate the digital signal record of current line, when determining described Using Image Plate and arriving pre-end position, at next line end number signals collecting and record
Described pre-starting position is the position of described position sensor R or between described position sensor R and the plane of scanning motion of described laser, described pre-end position is between described laser scanning plane and the piece mouth of described image scanning module, described row end position is positioned at described image scanning module and lays respectively at the both sides in row region of described Using Image Plate with described position sensor A and all do not blocked by described Using Image Plate, and described laser first scans position sensor A when performing a line scanning and scans row end position again.
Preferably, described position detection unit also includes position sensor P, Q, B；
Wherein said position sensor P is positioned at described pre-starting position place, and described position sensor Q is positioned at described pre-end position place, and described position sensor B is positioned at described row end position place.
Preferably, described position sensor R, P, Q are all made up of least one set light source and receptor, and described position sensor A, B are made up of laser pickoff.
Preferably, described device of image scanning also includes at least one intervalometer for timing；The time length of described timing is adjusted according to Using Image Plate translational speed and/or laser scanning speed；
Described image is locating module just, judges whether described Using Image Plate arrives described pre-starting position, pre-end position and judge whether described laser arrives row end position for the timing results according to described intervalometer.
Preferably, described device of image scanning also includes image and wipes module, for wiping the latent image from described image scanning module Using Image Plate out.
Preferably, the LED light source of described image erasing apparatus uses HONGGUANG, and optical wavelength peak value is 600nm-700nm.
Preferably, described Using Image Plate is flexible Using Image Plate, and described Using Image Plate gear unit includes for passing through to extrude the regulating wheel making described flexible Using Image Plate curve circular arc, and described laser is identical with the distance of a line each position to described Using Image Plate.
Preferably, described image-scanning system also includes computer, for receiving the image of described device of image scanning output, and according to user's request by described graphical analysis, preservation or display.
Preferably, described image-scanning system is applied in dentistry.
The present invention also provides for a kind of device of image scanning as described in the claims.
The present invention also provides for a kind of image scanning method, is applied in above-mentioned image-scanning system, and described image scanning method includes:
The position of described Using Image Plate is carried out detection acquisition primary importance testing result by described position detection unit and the laser position to described image scanning module carries out detection and obtains second position testing result；
Described Using Image Plate gear unit drives described Using Image Plate to move to the outlet of described image scanning module after determining the CD feeding port of the described Using Image Plate described image scanning module of entrance according to described primary importance testing result；
Described central control module controls described image scanning module when determining the CD feeding port of the described Using Image Plate described image scanning module of entrance according to described primary importance testing result and opens image scanning；
Described image scanning module utilizes laser rotary mode that described Using Image Plate is entered line scans, it is thus achieved that the digital signal streams of each row also sends described digital signal by described central control module and flow to described image processing module；
Described image just locating module carries out image initial location according to described primary importance testing result, described second position testing result and described digital signal streams, generates initial pictures matrix；
Described image pinpoint module judges whether each row of described initial pictures matrix, each column exist signal and generate exact image matrix according to judged result, and described exact image matrix is the minimum matrix comprising effective image-region；
Described image rotation module calculates image inclination angle Φ according to the apex coordinate of described exact image matrix, if Φ ≠ 0, then by image rotation algorithm by image clockwise or rotated counterclockwise by angle Φ to generate final image matrix.
Preferably, described position detection unit includes position sensor R and position sensor A；
Described position sensor R detects whether described Using Image Plate arrives described CD feeding port, and described position sensor R is positioned at the CD feeding port place of described image scanning module；
Described position sensor A detects the position of laser that described image scanning module is launched, outside described position sensor A is positioned at described image scanning module and is positioned at the row region of described Using Image Plate；
Described image is locating module just, when determining described Using Image Plate and being positioned at pre-starting position, digital signal acquiring and record is started at next line, when determining described laser and arriving described position sensor A, start the digital signal record of current line, when determining described laser and arriving row end position, terminate the digital signal record of current line, when determining described Using Image Plate and being positioned at pre-end position, at next line end number signals collecting and record
Described pre-starting position is the position of described position sensor R or between described position sensor R and the plane of scanning motion of described laser, described pre-end position is between described laser scanning plane and the piece mouth of described image scanning module, described row end position is positioned at described image scanning module and lays respectively at the both sides in row region of described Using Image Plate with described position sensor A and all do not blocked by described Using Image Plate, and described laser always first scans position sensor A when performing a line scanning and scans row end position again.
Preferably, described device of image scanning also includes at least one intervalometer to be timed；The time length of described timing is adjusted according to Using Image Plate translational speed and/or laser scanning speed；According to the timing results of described intervalometer, described image just locating module judges whether described Using Image Plate arrives described pre-starting position, pre-end position and judge whether described laser arrives row end position.
Preferably, described Using Image Plate is flexible Using Image Plate, and described Using Image Plate gear unit includes for passing through to extrude the regulating wheel making described flexible Using Image Plate complete circular arc, and described laser is identical with the distance of a line each position to described Using Image Plate.
Preferably, described image-scanning system also includes computer；
Described computer receives the image of described device of image scanning output, and according to user's request by described graphical analysis, preservation or display.
Preferably, described image scanning method is applied in dentistry.
The present invention is by providing a kind of surface of light source battle array being made up of multiple light sources with the identical characteristics of luminescence, the all regions making Using Image Plate can be subject to uniform light intense irradiation, improve the uniformity of illumination and the work efficiency of image erasing apparatus, it is thus achieved that complete and consistent erasing effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is Using Image Plate scale diagrams；
Fig. 2 A is the lighting angle schematic diagram of single led light source；
Fig. 2 B is the irradiation light distribution schematic diagram of single led light source；
Fig. 3 is the image erasing surface of light source battle array structural representation of row's LED light source composition；
Fig. 4 A is that row's LED light source irradiates Using Image Plate front schematic view；
Fig. 4 B is that row's LED light source irradiates Using Image Plate side schematic view；
Fig. 5 is each LED light source intensity of illumination distribution situation schematic diagram on Using Image Plate in row's LED light source linear array；
Fig. 6 is the synthetic effect schematic diagram of the light distribution of row's LED light source linear array；
Fig. 7 is image erasing surface of light source battle array (N × M) structural representation；
Fig. 8 is the dimension constraint schematic diagram of N × M surface of light source battle array structure；
Fig. 9 is that N × M surface of light source battle array is at the light source position distribution schematic diagram being perpendicular in the Using Image Plate direction of motion；
Figure 10 is that two row's LED light source face battle arrays are at the irradiation equivalent power resultant curve schematic diagram being perpendicular in the Using Image Plate direction of motion；
Figure 11 A, 11B are two kinds of layout structure schematic diagrams that two row's LED light source face battle arrays exist；
Figure 12 is scanning system structure chart；
Figure 13 is device of image scanning structure chart；
Figure 14 is image transmission module structure chart；
Figure 15 is image scanning module structure chart；
Figure 16 is central control module and other module connection diagrams；
Figure 17 is image scan process chart；
Figure 18 is position sensor R, P, Q installation site schematic diagram；
Figure 19 A, 19B are laser scanning floor map of the present invention；
Figure 20 is image just positioning embodiment one flow chart；
Figure 21 is image just positioning embodiment two flow chart；
Figure 22 is the image array obtained behind location at the beginning of image；
Figure 23 A, 23B, 24 26 it is that image is accurately positioned schematic diagram；
Figure 27 is the image array after image is accurately positioned；
Figure 28 is the image array after image rotation；
Figure 29 is that image is accurately positioned flow chart.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of the application protection.
The image erasing apparatus that the present invention relates to, the certain power of main offer and the uniform red-light source of light distribution, for wiping the ghost information on CR Using Image Plate.Described Using Image Plate is the flexible board with certain size, as shown in Figure 1, it will be assumed that Using Image Plate is h along the length dimension of the direction of motion, and the width dimensions being perpendicularly to the direction of movement is w.
Described red-light source exists with the form of modular assembly.Described Using Image Plate, under the drive of drive mechanism, slow transits through this image erasing apparatus with the form of uniform motion.In the process, red-light source continues to light so that all regions of Using Image Plate obtain sufficient and uniform light intense irradiation, so that ghost is completely eliminated.
The image erasing apparatus that the present invention relates to is made up of some red-light LED light sources.The peak luminous wavelength of each LED light source is at 600～700nm, and representative value is 620nm, it is ensured that ghost efficiency of erasing is higher.Multiple LED light sources must adopt unified specification, and unified power controls, and unified switch time controls, it is ensured that each LED light source plays same effect in the ghost of Using Image Plate is wiped.
The light distribution of LED light source has typical angular distribution feature, and meanwhile, being irradiated on Using Image Plate also needs to consider spherical diffusion feature.Without loss of generality, it will be assumed that the lighting angle of single led light source and irradiating shown in light distribution below figure 2A, 2B.
Wherein, I0For light intensity peak, the normal direction being typically in LED exiting surface obtains；θ is lighting angle.Under visible different angles, luminous light intensity is also different, and off-normal orientation angle is more big, and light intensity is more little.In theory, for guaranteeing unit are has enough light intensity, the LED light source that lighting angle is less should be selected.
Consider that Using Image Plate has certain area (w × h), and LED light source has lighting angle distribution character, if only irradiating Using Image Plate with a LED light source, it is difficult to obtain the uniform light intensity of larger area, therefore must take into multiple LED light source and form array, combination uses.This array of source must be perpendicular in the Using Image Plate direction of motion and formed or can equidistantly arrange by equivalence formation light source.The present invention provides the array of source of the following two kinds form:
(1) one dimensional linear array light source
Multiple LED light source array that this embodiment relates to are one dimensional linear array, that is: multiple LED light source is adopted, it is arranged to a linear array being perpendicular in the Using Image Plate direction of motion, layout such as (comprises D101～D106 totally 6 LED light sources, number of light sources is only signal) shown in Fig. 3 and Fig. 4 A, 4B in figure.Require that the characteristics of luminescence of all LED light sources is consistent, and the distance of the LED light source centre of luminescence of arbitrary neighborhood position is consistent, is set to d1.If light source linear array total length is set to L1, represent the centre of luminescence distance of two LED light sources at two ends in light source linear array.Assume that light source linear array is made up of N number of LED light source, then have relational expression:
L1=(N-1) d1
One row LED light source linear array be perpendicular in the Using Image Plate direction of motion produce light distribution effect as shown in Figure 5 and Figure 6.Wherein, what show in Fig. 5 is single led light source intensity of illumination distribution situation on Using Image Plate in this linear array, and in the normal direction of each LED light source, light intensity is maximum, for I0.In figure, d1It is still the distance of the LED light source centre of luminescence of arbitrary neighborhood position, L1Still represent the centre-to-centre spacing of two LED light sources at head and the tail two ends in light source linear array.Fig. 6 is this LED light source linear array at the synthetic effect of the light distribution being perpendicular in the Using Image Plate direction of motion to produce, and has the periodic law of spatial distribution.Due to light intensity superposition so that define relatively uniform irradiation light intensity within the scope of certain space, this is advantageously implemented the erasing of uniform image.
Being not difficult to draw, the space length in optical power detection region should be equal to linear array length L1, closing on the distance between light intensity peak valley should equal to closing on space between light sources d1.Assume that the light intensity maximum in optical power detection region is Iup,1, light intensity minima is Idn,1, should have Iup,1>Idn,1, and Iup,1≥I0, wherein I0It it is still the largest light intensity of single source.
As seen from Figure 6, as long as Using Image Plate is at the width w≤L being perpendicular in its direction of motion1, the ghost that can realize on Using Image Plate is uniformly wiped.
In addition, it is assumed that the ratio of light intensity minima in optical power detection region and light intensity maximum is R1, then have:
R1=Idn,1/Iup,1
In desirable optical power detection situation, R1Should leveling off to 1, this just requires the spacing d of two adjacent LEDs light source1As far as possible little.But practical limited is in the restrictive conditions such as LED light source size, one dimensional linear array layout, light source heat radiation, d1It is difficult to only small.Assume, for specific LED light source, structural design exists space between light sources minima d0, during actual design, should have d1≥d0。
Accordingly, it would be desirable to be considered as the design of multiple rows of array of source, to guarantee in the equivalent light source distribution being perpendicular in the Using Image Plate direction of motion equidistantly, and can effectively break through light source minimum spacing d0Restriction.
(2) multiple rows of array of source
Use multiple rows of array of source designing image erasing apparatus, it is therefore an objective to break through one dimensional linear array to space between light sources d0Restriction so that light intensity ratio RiMore level off to 1, reach the effect of approaches uniformity distribution.
Without loss of generality, present invention design N × M surface of light source battle array as shown in Figure 7, N >=2 herein, M >=2, this surface of light source battle array has the following characteristics that
Being perpendicular in the Using Image Plate direction of motion at image erasing apparatus and arrange that N arranges LED light source linear array, often row is all made up of M LED light source.As it is shown in fig. 7, first row light source numbering is followed successively by D11, D12, D13 ... D1M；Second row light source numbering is followed successively by D21, D22, D23 ... D2M；3rd row's light source numbering is followed successively by D31, D32, D33 ... D3M；... N arranges light source numbering and is followed successively by DN1, DN2, DN3 ... DNM.
Require that light intensity and the angular distribution characteristic thereof of each LED light source are completely or approximately identical；
In array, each LED light source position is staggeredly placed, but defers to certain layout rule.Specifically as shown in Figure 7 and Figure 8.In Fig. 7, first LED light source of second row is relative to first LED light source of first row, and the certain distance of indentation is placed, and being located at and being perpendicular in the Using Image Plate direction of motion distance of indentation is d'0；3rd ranked first a LED light source relative to first LED light source of second row, same indentation distance d'0Place；... by that analogy, N ranked first a LED light source and ranked first a LED light source, indentation distance d' relative to N-10Place；And second LED light source of first row ranked first a LED light source, still indentation distance d' relative to N0Place；Second LED light source of second row is relative to second LED light source of first row, same indentation distance d'0Place；... and so forth, until completing the layout of all LED light sources.Namely the straight line at each column place of described light source and the straight line at each row place of described light source are non-perpendicular relation.LED light source face battle array designed by the present invention, can form the equidistant linear array distribution of equivalent one-dimensional as shown in Figure 8 being perpendicular in the Using Image Plate direction of motion.
LED light source face battle array is being perpendicular in the Using Image Plate direction of motion to exist the one-dimensional equidistant linear array arrangement of above-mentioned equivalence just, just ensure that and is formed in the direction than more uniform light distribution feature.
Requirement based on LED light source position each in above-mentioned surface of light source battle array, it is easy to draw and be perpendicular in the Using Image Plate direction of motion, in M LED light source of each winding displacement battle array, the centre-to-centre spacing of two LED light sources of arbitrary neighborhood is identical.The centre-to-centre spacing assuming first row two adjacent LEDs light source is d1, the centre-to-centre spacing of second row two adjacent LEDs light source is d2, the centre-to-centre spacing of the 3rd row's two adjacent LEDs light source is d3... the centre-to-centre spacing of i-th row's two adjacent LEDs light source is di, it is d that N arranges the centre-to-centre spacing of two adjacent LEDs light sourceN；But assume to belong to adjacent LED linear array apart from two closest LED light source centre-to-centre spacing respectively d simultaneously12、d23、d34、…dI, j (j=i+1)……dN-1,N, then have relationship below to set up:
d1=d2=d3=...=dN=N × d'0≥d0
d12≥d0, d23≥d0, d34≥d0..., dN-1,N≥d0
It is not required that d12=d23=d34=...=dN-1,N.In above formula, d0It it is still the minimum limit value of LED light source spacing.
Based on relational expression above, it can be deduced that:
d'0=d1/N
Determined the required distance of each row's LED light source indentation by above formula, establish indentation distance d'0With often arrange adjacent LED light source center from d1Between contact.
Assume each linear array length respectively L1、L2、L3、…LN, then easily draw: L1=L2=L3=...=LN=(M-1) d1, namely the length of each winding displacement battle array is equal.
LED light source array of the present invention, is being perpendicular in the Using Image Plate direction of motion surface of intensity distribution that can be formed as shown in Figure 10.Assume that the light intensity maximum in optical power detection region is Iup,1, light intensity minima is Idn,1, the ratio of light intensity minima and light intensity maximum is RN, RN=Idn,N/Iup,N, should have Iup,N>Idn,N, Iup,N≥I0, and R1≤RN≤ 1, wherein I0For the largest light intensity of single source, R1For aforementioned one light intensity ratio arranging LED light source linear array.In desirable optical power detection situation, RNShould leveling off to 1, this just requires the spacing d of two adjacent LEDs light source1As far as possible little.
In Figure 10, it will again be assumed that the length in optical power detection region is L0, then L can be derived0With the relational expression of the LED light source array layout of this N × M it is:
L0=(1/N+M 2) d1
Similarly, as long as ensureing that Using Image Plate is at the width w≤L being perpendicular in its direction of motion0, the ghost that can realize on Using Image Plate is uniformly wiped.
It should be understood that
The LED light source array layout designs of above-mentioned N × M, the particular design for one dimensional linear array is equally applicable, describes for said process, if N=1.
The above-mentioned requirement for each row's distributing order, it is not unalterable, the order of each row can adjust, it is only necessary to each row's LED light source linear array remains to the equivalent light source linear array lined up shown in Fig. 6, and the centre-to-centre spacing meeting two LED light sources of arbitrary neighborhood is not less than restrictive condition d0?.Arranging LED light source array, wherein any one row for the N in Fig. 8, such as N arranges LED light source linear array can adjust its position, it is possible to be placed on first row, it is also possible to be placed on second row, N 1 arranges for the 3rd row ...；The light source linear array of other rows is similar.Therefore, in theory for N arrange array of source, have N × (N-1) × (N-2) × ... × 2 × a kind of arrangement mode.Such as row N=3, LED light source face battle array can have 6 kinds of layout structures；And as row N=2, still have two kinds of layout structures, as shown in figure 11.In figure, no matter being first row indentation or second row indentation, the distance of indentation is d1/ 2, wherein d1For the centre-to-centre spacing of adjacent LED light source in any one row's light source linear array.
The present invention is by optimizing the topology layout of LED light source array, LED light source is arranged at bigger two-dimensional space, make for the same or analogous multiple LED light sources of the characteristics of luminescence, can be perpendicular in the Using Image Plate direction of motion and obtain the comparatively uniform light area of light intensity, and light intensity is increased, can effectively break through one dimensional linear array restriction in each LED light source spacing, be also beneficial to improve the speed of image erasing and the heat radiation of image erasing apparatus.
The present invention relates to a kind of image-scanning system for computer X-ray.As shown in figure 12, this system include recording expose sub-image Using Image Plate (ImagingPlate, also referred to as IP plate), by using laser quickly to scan this Using Image Plate continuously, the fluorescence excited is collected, opto-electronic conversion, A/D conversion synthesize the device of image scanning of a width two dimensional image and be used for receiving the workbench of the image of device of image scanning output after converting record sub-image on Using Image Plate to digital information.
This workbench can be man-machine interactive platform, by the support of software, it is possible to be scanned object registration, starts image scan, browses, analyzes, preserves the functions such as image.Concrete, this workbench can be attached by wired (such as Serial Port Line, USB line, RJ45 netting twine etc.) or the mode of wireless (such as bluetooth, wifi, 3G/4G etc.) with scanning means.Device of image scanning is controlled by the instruction that this workbench certain can also accept user.
As shown in figure 13, above-mentioned device of image scanning is mainly made up of Using Image Plate transmission module, image scanning module, image processing module, network driver block, power module and central control module.
It should be noted that the Using Image Plate in Figure 13 is not the organic component of device of image scanning, be intended only as the object to be scanned of insertion for illustrating.
Above-mentioned Using Image Plate transmission module includes position detection unit and Using Image Plate gear unit, and image processing module includes image just locating module, image pinpoint module and image rotation module.
Above-mentioned position detection unit carries out detection obtain second position testing result for the position of Using Image Plate carries out detection acquisition primary importance testing result the laser position to image scanning module.
Using Image Plate gear unit for according to primary importance testing result determine Using Image Plate enter image scanning module CD feeding port after drive Using Image Plate move to the outlet of image scanning module.
Central control module controls image scanning module when being used for the CD feeding port determining Using Image Plate entrance image scanning module according to primary importance testing result and opens image scanning.
Image scanning module is used for utilizing laser rotary mode that Using Image Plate is entered line scans, it is thus achieved that the digital signal streams of each row also sends digital signal by central control module and flow to image processing module.
Image just locating module, for carrying out image initial location according to primary importance testing result, second position testing result and digital signal stream, generates initial pictures matrix.
Image pinpoint module is for judging whether each row of initial pictures matrix, each column exist signal and generate exact image matrix according to judged result, and exact image matrix is the minimum matrix comprising effective image-region.
Image rotation module is for calculating image inclination angle Φ according to the apex coordinate of exact image matrix, if Φ ≠ 0, then by image rotation algorithm by image clockwise or rotated counterclockwise by angle Φ to generate final image matrix.
As shown in figure 14, for image transmission module structural representation, wherein image gear unit includes conveyer belt, drivewheel, driven pulley, regulating wheel, supporting construction, motor #1, and motor drives and control circuit #1.Wherein, wherein, drivewheel, driven pulley, regulating wheel are used for driving and fastening conveyer belt；Using Image Plate regulating wheel is used for fastening Using Image Plate and Using Image Plate cambered surface moulding (flexible Using Image Plate).Motor #1 works together with conveyer belt, drives Using Image Plate to continue to move forward.Described motor drives and control circuit #1, runs for drive motor #1, and provides velocity accuracy control.
Position detection unit includes position sensor and position detecting circuit.Described position sensor by organizing photoelectric tube or light sensitive diode is constituted more, can not only detect whether Using Image Plate inserts (primary importance testing result) or removal scan module, moreover it is possible to each row image scan is carried out initial zero location (second position testing result).Described position detecting circuit, for activation point working sensor, and carries out useful signal detection.
Image scanning module major function is, start the laser instrument laser beam to output firm power, the light velocity, after focusing to certain spot size, impinges perpendicularly on the region that on Using Image Plate, certain is only small, inspires the fluorescence signal of relation proportional to sub-image gray value in this region.The fluorescence signal excited is collected through light path, and through steps such as opto-electronic conversion, A/D conversions, is converted to digital signal streams by equal proportion.Described laser beam necessarily through a specular-reflection unit, this device can at high speed rotating under driven by motor, it is achieved that the scanning in all regions on Using Image Plate.As shown in figure 15, image scanning module at least includes following assembly:
Laser instrument and drive circuit for laser.Described laser instrument provides light source for image scan.Laser instrument output HONGGUANG, optical wavelength, between 600nm～700nm, may select the semiconductor laser using helium neon laser or specific wavelength.Described drive circuit for laser, provides constant-current driving for laser instrument, and guarantees the temperature stability of laser instrument.
Laser adjusts light path.It is made up of one group of lens and supporting construction thereof, the output light source of laser instrument is adjusted, it is ensured that projecting the spot size on Using Image Plate continually and steadily in required scope, such as hot spot should be less than 50 microns.
Motor #2, and motor drive and control circuit #2.Motor #2, is used for driving laser to adjust light path, especially drives light reflection mirror therein to rotate so that laser can continue, circumferentially be scanned evenly.Described motor drives and control circuit #2, runs for drive motor #2, and provides velocity accuracy control.
Phosphor collection light path.Laser facula projects on Using Image Plate relevant position, can inspire the fluorescence of a wavelength range moment, and the intensity of fluorescence exists proportionate relationship with the sub-image information of record on Using Image Plate.Fluorescence, according to certain outside scattering of angular distribution rule, is collected by phosphor collection light path.One group of lens of phosphor collection optical routing or reflecting mirror composition, it is therefore an objective to the fluorescence scattered out is focused, and project in the light collection window of electrooptical device of correspondence.
Electrooptical device.For collecting through over-focusing fluorescence signal, and amplify, and convert the current signal of some strength in proportion to.Typically, laser scanning device adopts photomultiplier tube (PMT) to carry out the work of optical signal amplification and opto-electronic conversion.
Signals collecting control circuit.There is provided for electrooptical device on the one hand and drive and control, realize the A/D sampling of the signal of telecommunication on the other hand, current signal is converted to digital signal.Sample rate is set by central controller.
Above-mentioned image processing module, mainly under the scheduling of central control module, completes Using Image Plate latent image information to be extracted from the signal stream gathered, and is combined into a width two-dimensional rectangular image like clockwork.
Described image processing module can integrate with central control module, it is also possible to is made up of independent hardware, such as FPGA, DSP etc..
Described image processing module, for positioning at the beginning of image, be accurately positioned and image rotation:
Position at the beginning of image, based on the sensor of fixed position, such as photoelectric tube or photodiode, or in conjunction with sensor and intervalometer, it is achieved to primarily determining that of Using Image Plate column locations.Image is accurately positioned.Based on the image information gathered, by signal strength analysis, accurately determine the border of Using Image Plate.Image rotation.The image caused owing to Using Image Plate is out of alignment is tilted, is corrected as turned clockwise by image rotation.
Above-mentioned network driver block is for realizing the interconnection between the central control module of scanning means and workbench or other parametric controller, it is easy to workbench and sends control parameter and control instruction to scanning means, and scanning means transmits view data, work state information and abnormal information to workbench.
In the present invention, network driver block includes but not limited to:
(1) USB drives module.For realizing the usb communication of workbench and scanning means.
(2) Ethernet drives module.For realizing gigabit or the 100 m ethernet communication of workbench and scanning means.
(3) wifi drives module.For realizing the short-distance wireless communication between moving bolster and scanning means.
(4) bluetooth module.For realizing moving bolster and scanning means short-distance wireless communication.
(5) 3G/4G communication module.For realizing moving bolster or remote platform and scanning means mobile communication.
Above-mentioned power module is powered for each functional module of whole scanning means, and voltage is less than 24V.It is powered controlling by central control module.
As shown in figure 16, it is connected figure for central control module with other modules.Central control module performs functional module for connecting and controlling peripheral each, controls the orderly function of whole scanning means.Central control unit can be ARM+FPGA platform, it is possible to be FPGA+DSP platform, it is also possible to be independent FPGA module.
The device of image scanning of the present invention also includes image erasing apparatus mentioned above.
Through the Using Image Plate of laser traverse scanning, it is possible to containing remaining latent image information.Can reuse in order to ensure Using Image Plate, and Multiple-Scan image will not interfere with each other, it is necessary to remaining latent image is wiped out.
To the Using Image Plate region passing through above-mentioned laser scanning, use the LED light source face battle array of foregoing description, latent image remaining on Using Image Plate is wiped.Described LED light source uses HONGGUANG, and optical wavelength peak value is 600nm-700nm.By wiping so that being resetted completely by the electronics of excitation of X-rays, Using Image Plate can reuse.
Figure 17 is the whole handling process of image scan:
Scanning means process to as if Using Image Plate after x-ray bombardment, this Using Image Plate remains with the latent image information at x-ray bombardment position, such as the tooth of patient, thoracic cavity, extremity etc..Described Using Image Plate must through being inserted into the CD feeding port of scanning means manually.
Generally, holding state is namely entered after scanning means start.In the standby state, position detecting circuit meeting continuous service, after detecting that Using Image Plate is already inserted into CD feeding port, central control module can start Using Image Plate scanning process.
The first step, starts motor #2 drive circuit, drives laser to adjust light path high speed rotating, Negotiation speed precision controlling, it is ensured that motor is uniform motion under setting speed by motor #2；
Second step, starts motor #1 drive circuit, makes motor #1 uniform motion at lower speeds, transmits Using Image Plate by conveyer belt and enters scanning area evenly.By the squeezing action of regulating wheel, make Using Image Plate curve circular arc, guarantee that the center of circle of circular arc overlaps with the axis of rotation of motor #2 by structural design；
3rd step, starts drive circuit for laser, lights laser instrument and make its power stability.Through laser adjust light path focus on small size hot spot, can be normally incident on Using Image Plate, and motor #2 drive under, hot spot can one circle another enclose the land inswept on Using Image Plate, formed continuous print scanning line.Under the synergism of motor #1 and motor #2, it is possible to realize scanning line and travel through whole Using Image Plate；
4th step, is collected by phosphor collection light path, collects the fluorescence of scattering and is focused.The fluorescence focused on is sent to the light inlet of electrooptical device；
5th step, carries out clutter by electrooptical device to fluorescence and filters, useful fluorescence signal is amplified, and converts current signal output to；
6th step, by signals collecting control circuit, is amplified the current signal exported through electrooptical device and A/D conversion, forms digitized signal stream.
7th step, by image processing module, and binding site sensor information, in above-mentioned digitized signal stream, carry out location, image at the beginning of image and be accurately positioned and image rotation step, it is thus achieved that efficient 2-d image information；
8th step, by central control module, encapsulates two-dimensional image information, and by specific network driver block, image is sent to workbench, display and achieve.
Hereinafter the first location of the image in above-mentioned flow process is described in detail:
Position detection unit includes position sensor R and position sensor A；
Described position sensor R is positioned at the CD feeding port place of described image scanning module, is used for detecting whether described Using Image Plate arrives described CD feeding port；
Described position sensor A is for detecting the position of laser that described image scanning module is launched, outside described position sensor A is positioned at described image scanning module and is positioned at the row region of described Using Image Plate；
Described image is locating module just, for when determining described Using Image Plate and being positioned at pre-starting position, digital signal acquiring and record is started at next line, when determining described laser and arriving described position sensor A, start the digital signal record of current line, when determining described laser and arriving row end position, terminate the digital signal record of current line, when determining described Using Image Plate and being positioned at pre-end position, at next line end number signals collecting and record
Described pre-starting position is between described position sensor R and the plane of scanning motion of described laser, described desire end position is between described laser scanning plane and the piece mouth of described image scanning module, and described row end position is positioned at described image scanning module and lays respectively at the both sides in row region of described Using Image Plate with described position sensor A.
Below for two specific embodiments of image initial location, the respectively situation of maximum position sensors and minimum position sensor:
Embodiment one
Position at the beginning of lower edges
Position at the beginning of image, mainly the location to Using Image Plate.In order to Using Image Plate is positioned, image transmission module can include R, P, Q position sensor shown in lower Figure 18.
Position sensor R, is positioned at CD feeding port, is used for detecting whether Using Image Plate inserts CD feeding port；Position sensor P, is positioned at the lower section of sensor R, the top of laser scanning plane ACDB, and for determining the lower edge of Using Image Plate, instruction Using Image Plate is about to enter scanning area, as the original position of image acquisitions；Position sensor Q, is positioned at the lower section of sensor R, and also in the lower section of laser scanning plane, for determining upper edge during Using Image Plate removal scanning area, instruction Using Image Plate is about to be fully removed scanning area, as the end position of image acquisitions.
Above-mentioned described lower section is a kind of it is assumed that namely suppose that conveyer belt is vertically placed in scanning means, and Using Image Plate inserts CD feeding port from top to bottom.In any case, when Using Image Plate advances, sensor P is in the front of sensor R, and sensor Q is in the front of sensor P.
R, P, Q sensor should use light source and the optical receiver of pairing, and light source and receptor are discretely located, such as photoelectric tube etc..Each position sensor can be made up of one or more groups light source and receptor.
Described light source, the light sent should be able to direct projection to optical receiver.Described receptor should be able to according to whether sense light and export corresponding level state.Such as, after the light that light source is not luminous or light source sends is blocked by Using Image Plate, receptor output low level；And when the light direct beam that light source sends to receptor, receptor output high level.Vice versa.
Position at the beginning of edge, left and right
The schematic diagram of the plane of scanning motion ACDB of Figure 19 A, 19B reflection, laser scanning line is high speed rotating in this plane only.In figure, r is sweep radius, and θ is the scanning angle that Using Image Plate is corresponding.Owing to the crooked radian of Using Image Plate is limited, therefore r can not be too little, also just determines θ not too large.Laser scanning being described one week, the most of the time is in sky and sweeps state.In order to determine the position of Using Image Plate in each row scanning process, position sensor is also set in the plane of scanning motion, to determine original position and the end position of each row scanning valid data.
As shown below, position sensor A and B is set, and arranges laser scanning line and swept to B by A.The installation site of A, B, through optimizing design, must meet the following conditions:
(1) must be positioned in the plane of scanning motion, it is possible to be irradiated to by laser scanning line；
(2) all there is rational distance on sensors A range image plate left side edge, sensor B range image plate right edge edge, and distance can not too far, can not be blocked by Using Image Plate.This is applicable to the Using Image Plate of all dimensions.Such as Figure 18, should there is θ 1 > 0, θ 2 > 0.
Above-mentioned described left side and right side, be a kind of position it is assumed that can also reversely state.In any case, when laser scanning line continues to scan, always before scanning Using Image Plate, first scan sensors A；After scanning Using Image Plate, just can scan sensor B.
A and B is only made up of laser pickoff, it is possible to actual induction scanning laser facula, and exports instruction level, it is possible to for high level, it is also possible to for low level.
Laser scanning line high speed rotating under the drive of motor #2, often rotates a circle, and all can flow serially through position sensor A and B, and laser intensity can be sensed by A and B.When through A, starting Imagery Data Recording, as the initiating terminal of picturedeep evidence.When through B, stopping Imagery Data Recording, as the end of picturedeep evidence.Sensors A, B level signal collection and laser scanning signal (picturedeep evidence) gather and answer stringent synchronization.
The idiographic flow of this embodiment is as shown in Figure 20.
Embodiment 2
Position at the beginning of lower edges
If the sensor P in above-mentioned Figure 18 or Q one are absent from, or P and Q is absent from, then namely can calculate, by specific distance relation, the original position and end position that obtain image collection in conjunction with the timing of intervalometer.As shown in figure 18, the distance of design attitude sensor R to P is h1, distance to laser scanning plane is h1+h2, distance to Q is h1+h2+h3, and assume that Using Image Plate is of a size of h × w (long × wide), the speed that Using Image Plate transmits is v, and laser scanning line angular velocity of rotation is ω, then after sensor P senses that Using Image Plate inserts
After the interval t1 time, namely Using Image Plate lower edge should reach the position of position sensor P in theory, now should start image acquisitions.Actual in the existence of kinematic error and control time delay, it is difficult to the time of advent accurately estimate.Described t1 computing formula is:
T1=h1/v
After the interval t2 time, Using Image Plate lower edge should arrive the plane of scanning motion in theory.Described t2 computing formula is:
T2=(h1+h2)/v
After the interval t3 time, Using Image Plate upper edge should arrive the plane of scanning motion in theory.Described t3 computing formula is:
T3=(h1+h2+h)/v
After the interval t4 time, Using Image Plate upper edge answers the position at sensor Q place, in-position in theory, now should stop image acquisitions.Described t4 computing formula is:
T4=(h1+h2+h3+h)/v
Position at the beginning of edge, left and right
Sensor B can not be tangible material object, can also obtain equivalently by distance estimations, as started picturedeep when laser scanning line is irradiated to sensors A according to record, as laser scanning line scanning angle θ+θ 1+ θ 2 again, namely after arriving the position of virtual-sensor B, the record of picturedeep evidence can be stopped, completing Primary Location and the collection of a line view data equally.It is represented by by the interval t5 of A to B:
T5=(θ+θ 1+ θ 2)/ω
Flow chart is as indicated at 21
Above-described embodiment 2 its essence is, by means of intervalometer estimates Using Image Plate or whether laser reaches the position of setting.
By the image picturedeep evidence that just position fixing process obtains, recombinating through inverted order, the image array of formation is illustrated in fig. 23 shown below.
This image is likely to include bigger white space around effective imaging region EFGH, defines image array JKLM.In real image analysis process, these white spaces are useless, it is also possible to form interference.Meanwhile, comprise the picture size of white space relatively big, Image Processing and transmission speed.Therefore, it is necessary to all removed by white space, this relates to image exact localization operation.
Image is accurately positioned each step included shown in Figure 29.
Order (L1, L2, L3 shown in Figure 23 A, L4, L5 ...), from top to bottom image array JKLM is entered line scans, and line by line signal intensity is analyzed, judge whether current line has signal to exist, it may be assumed that whether there is continuous print, range value deviates the bigger picture signal of noise figure and there is (Figure 23 B), and the S point such as L4 is judged to signal to T point, the U point of L5 is judged to signal to W point, and all the other are noise.
Owing to judging have signal to exist at line number L4, can using L4 as effective image beginning-of-line, i.e. upper edge.
Order shown in Figure 24 (L1, L2, L3, L4, L5 ...), from down to up image array JKLM is entered line scans, and line by line signal intensity is analyzed, it is judged that whether current line has picture signal to exist.Rule of judgment is image intensity signal much larger than background noise, can find picture signal border by setting the mode of threshold value.Using find picture signal the first row as the end point of effective image row, i.e. lower edge.
Order shown in Figure 25 (L1, L2, L3, L4, L5 ...), left-to-right image array JKLM is carried out column scan, and by column signal intensity is analyzed, it is judged that when whether prostatitis has signal to exist.Using the first row that finds signal as the starting point of image column, i.e. left side edge.
Order shown in Figure 26 (L1, L2, L3, L4, L5 ...), the right side to a left side, image array JKLM is carried out column scan, and by column signal intensity is analyzed, it is judged that when whether prostatitis has signal to exist.Using find signal first row as the end point of image column, i.e. right edge edge.
Being accurately positioned by image, the image array obtained is J ' K ' L ' M ', is the minimum matrix comprising effective image-region EFGH.As shown in figure 27.
Further, if before search graph image signal, base line or column signal are carried out smothing filtering, be then more beneficial for improving the precision of image edge detection.
Further, carry out image pixel sampling if having employed when sampling than the much higher frequency of the sample rate required by Nyquist law, then it is more accurate image edge detection to be obtained.
Considering that Using Image Plate is not easily achieved when inserting CD feeding port desirably vertically to place, the effective image-region EFGH therefore collected is difficult to overlap with above-mentioned pinpoint image array J ' K ' L ' M ', it is necessary to carry out image rotation.
By the coordinate of E, F, G, H point in image array J ' K ' L ' M ', calculate image inclination angle Φ.Adopt general image rotation algorithm, by image clockwise anglec of rotation Φ, thus obtaining final image array E ' F ' G ' H '.As shown in figure 28.
Through above-mentioned steps, it is possible to obtain the latent image of Using Image Plate record.
It should be noted that said system specifically can be applicable in dentistry.
Corresponding said system, present invention also offers a kind of device of image scanning and scan method, and related content can describe referring to components of system as directed.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application has many deformation and is varied without departing from spirit herein, it is desirable to appended claim includes these deformation and is varied without departing from spirit herein.
Claims (15)
1. an image erasing apparatus, it is characterised in that described image erasing apparatus includes: N × M identical light source, described N is the quantity of row, and described M is the quantity of row, and the centre of luminescence distance d of two light sources of arbitrary neighborhood in the i-th rowiIdentical；Described N >=1, described M >=2.
2. image erasing apparatus as claimed in claim 1, it is characterised in that the centre of luminescence distance d of two light sources of arbitrary neighborhood in all rowiIdentical.
3. image erasing apparatus as claimed in claim 1, it is characterised in that the centre of luminescence distance d of two light sources of arbitrary neighborhood in described same a linei≥d0, described d0It it is the minimum centre of luminescence distance of two light sources.
4. image erasing apparatus as claimed in claim 1, it is characterised in that described N >=2, and the straight line at each column place of described light source and the straight line at each row place of described light source be non-perpendicular relation.
5. image erasing apparatus as claimed in claim 4, it is characterised in that the centre of luminescence distance d of two light sources of arbitrary neighborhood in every stringij≥d0, wherein said dijFor the centre of luminescence distance of the i-th row and jth line light source in same string, and described j=i+1.
6. image erasing apparatus as claimed in claim 4, it is characterised in that di=N × d`0, d`0For the minima of the centre of luminescence distance of two light sources projector distance in the row direction in same string.
7. image erasing apparatus as claimed in claim 1, it is characterised in that
L0=(1/N+M 2) di,
Described L0Length for optical power detection region；
Described Using Image Plate is at the width w≤L being perpendicular in its direction of motion0。
8. an image method for deleting, is applied in the image erasing apparatus as according to any one of claim 1-7, it is characterised in that described image method for deleting includes: move to wipe image along the direction of the row being perpendicular to described image erasing apparatus by Using Image Plate.
9. image method for deleting as claimed in claim 8, it is characterised in that described image method for deleting includes: all described light sources are carried out identical power and switch time controls.
10. an image-scanning system, it is characterised in that described image-scanning system, is scanned obtaining the device of image scanning of image including Using Image Plate with to described Using Image Plate；
Described device of image scanning includes: image erasing apparatus according to any one of claim 1-6, central control module and with as described in central control module the Using Image Plate transmission module, image scanning module and the image processing module that are all electrically connected；
Described Using Image Plate transmission module includes position detection unit and Using Image Plate gear unit, and described image processing module includes image just locating module, image pinpoint module and image rotation module；
Described position detection unit carries out detection obtain second position testing result for the position of described Using Image Plate carries out detection acquisition primary importance testing result the laser position to described image scanning module；
Described Using Image Plate gear unit for according to described primary importance testing result determine described Using Image Plate enter described image scanning module CD feeding port after drive described Using Image Plate to move to the outlet of described image scanning module；
Described central control module controls described image scanning module when being used for the CD feeding port determining the described Using Image Plate described image scanning module of entrance according to described primary importance testing result and opens image scanning；
Described image scanning module is used for utilizing laser rotary mode that described Using Image Plate is entered line scans, it is thus achieved that the digital signal streams of each row also sends described digital signal by described central control module and flow to described image processing module；
Described image just locating module, for carrying out image initial location according to described primary importance testing result, described second position testing result and described digital signal streams, generates initial pictures matrix；
Described image pinpoint module is for judging whether each row of described initial pictures matrix, each column exist signal and generate exact image matrix according to judged result, and described exact image matrix is the minimum matrix comprising effective image-region；
Described image rotation module is for calculating image inclination angle Φ according to the apex coordinate of described exact image matrix, if Φ ≠ 0, then by image rotation algorithm by image clockwise or rotated counterclockwise by angle Φ to generate final image matrix.
11. image-scanning system as claimed in claim 10, it is characterised in that described position detection unit includes position sensor R and position sensor A；
Described position sensor R is positioned at the CD feeding port place of described image scanning module, is used for detecting whether described Using Image Plate arrives described CD feeding port；
Described position sensor A is for detecting the position of laser that described image scanning module is launched, outside described position sensor A is positioned at described image scanning module and is positioned at the row region of described Using Image Plate；
Described image is locating module just, for when determining described Using Image Plate and arriving pre-starting position, digital signal acquiring and record is started at next line, when determining described laser and arriving described position sensor A, start the digital signal record of current line, when determining described laser and arriving row end position, terminate the digital signal record of current line, when determining described Using Image Plate and arriving pre-end position, at next line end number signals collecting and record
Described pre-starting position is the position of described position sensor R or between described position sensor R and the plane of scanning motion of described laser, described pre-end position is between described laser scanning plane and the piece mouth of described image scanning module, described row end position is positioned at described image scanning module and lays respectively at the both sides in row region of described Using Image Plate with described position sensor A and all do not blocked by described Using Image Plate, and described laser first scans position sensor A when performing a line scanning and scans row end position again.
12. image-scanning system as claimed in claim 11, it is characterised in that described position detection unit also includes position sensor P, Q, B；
Wherein said position sensor P is positioned at described pre-starting position place, and described position sensor Q is positioned at described pre-end position place, and described position sensor B is positioned at described row end position place.
13. image-scanning system as claimed in claim 12, it is characterised in that described position sensor R, P, Q are all made up of least one set light source and receptor, and described position sensor A, B are made up of laser pickoff.
14. image-scanning system as claimed in claim 11, it is characterised in that described device of image scanning also includes at least one intervalometer for timing；The time length of described timing is adjusted according to Using Image Plate translational speed and/or laser scanning speed；
Described image is locating module just, judges whether described Using Image Plate arrives described pre-starting position, pre-end position and judge whether described laser arrives row end position for the timing results according to described intervalometer.
15. image-scanning system as claimed in claim 10, it is characterized in that, described Using Image Plate is flexible Using Image Plate, and described Using Image Plate gear unit includes for passing through to extrude the regulating wheel making described flexible Using Image Plate curve circular arc, and described laser is identical with the distance of a line each position to described Using Image Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142911.7A CN105763817B (en) | 2016-03-14 | 2016-03-14 | Image scanning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142911.7A CN105763817B (en) | 2016-03-14 | 2016-03-14 | Image scanning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105763817A true CN105763817A (en) | 2016-07-13 |
| CN105763817B CN105763817B (en) | 2020-01-14 |
Family
ID=56331967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610142911.7A Active CN105763817B (en) | 2016-03-14 | 2016-03-14 | Image scanning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105763817B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132723A (en) * | 2017-05-19 | 2017-09-05 | 天逸瑞狮（苏州）口腔医疗科技股份有限公司 | Image Plate transmission device, method and image-scanning system |
| CN107345918A (en) * | 2017-08-16 | 2017-11-14 | 广西大学 | A kind of board quality testing apparatus and method |
| CN109308684A (en) * | 2017-07-27 | 2019-02-05 | 成都理想境界科技有限公司 | A kind of image skew correction method and computer readable storage medium |
| CN114554091A (en) * | 2022-02-23 | 2022-05-27 | 中国计量大学 | Rapid image acquisition method for express delivery mobile terminal |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030214641A1 (en) * | 2000-06-13 | 2003-11-20 | Fuji Photo Film Co., Ltd. | Method of and apparatus for recording image by exposure to light beams |
| US20040246473A1 (en) * | 2003-03-18 | 2004-12-09 | Hermary Terrance John | Coded-light dual-view profile scanning apparatus |
| CN1902058A (en) * | 2003-11-10 | 2007-01-24 | 株式会社理光 | Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus |
| CN101317131A (en) * | 2005-09-27 | 2008-12-03 | 杜尔牙科器械两合公司 | Device for reading out exposed imaging plates |
| CN101493579A (en) * | 2009-01-09 | 2009-07-29 | 北京交通大学 | Reading-out device of X-ray imaging system of computer |
| CN201710371U (en) * | 2010-06-22 | 2011-01-19 | 刘子华 | Medical photographing box for photographing plate |
| US20120001082A1 (en) * | 2008-09-30 | 2012-01-05 | Sharp Kabushiki Kaisha | Radiographic imaging system |
| CN102495523A (en) * | 2011-09-28 | 2012-06-13 | 桂林电子科技大学 | Imaging plate (IP) cassette |
| CN205610785U (en) * | 2016-03-14 | 2016-09-28 | 天逸瑞狮（苏州）口腔医疗科技股份有限公司 | Device and image scanning system are erased to image |
-
2016
- 2016-03-14 CN CN201610142911.7A patent/CN105763817B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030214641A1 (en) * | 2000-06-13 | 2003-11-20 | Fuji Photo Film Co., Ltd. | Method of and apparatus for recording image by exposure to light beams |
| US20040246473A1 (en) * | 2003-03-18 | 2004-12-09 | Hermary Terrance John | Coded-light dual-view profile scanning apparatus |
| CN1902058A (en) * | 2003-11-10 | 2007-01-24 | 株式会社理光 | Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus |
| CN101317131A (en) * | 2005-09-27 | 2008-12-03 | 杜尔牙科器械两合公司 | Device for reading out exposed imaging plates |
| US20120001082A1 (en) * | 2008-09-30 | 2012-01-05 | Sharp Kabushiki Kaisha | Radiographic imaging system |
| CN101493579A (en) * | 2009-01-09 | 2009-07-29 | 北京交通大学 | Reading-out device of X-ray imaging system of computer |
| CN201710371U (en) * | 2010-06-22 | 2011-01-19 | 刘子华 | Medical photographing box for photographing plate |
| CN102495523A (en) * | 2011-09-28 | 2012-06-13 | 桂林电子科技大学 | Imaging plate (IP) cassette |
| CN205610785U (en) * | 2016-03-14 | 2016-09-28 | 天逸瑞狮（苏州）口腔医疗科技股份有限公司 | Device and image scanning system are erased to image |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132723A (en) * | 2017-05-19 | 2017-09-05 | 天逸瑞狮（苏州）口腔医疗科技股份有限公司 | Image Plate transmission device, method and image-scanning system |
| CN107132723B (en) * | 2017-05-19 | 2023-06-09 | 天逸瑞狮（苏州）口腔医疗科技股份有限公司 | Image plate transmission device, method and image scanning system |
| CN109308684A (en) * | 2017-07-27 | 2019-02-05 | 成都理想境界科技有限公司 | A kind of image skew correction method and computer readable storage medium |
| CN109308684B (en) * | 2017-07-27 | 2022-03-08 | 成都理想境界科技有限公司 | Image tilt correction method and computer readable storage medium |
| CN107345918A (en) * | 2017-08-16 | 2017-11-14 | 广西大学 | A kind of board quality testing apparatus and method |
| CN114554091A (en) * | 2022-02-23 | 2022-05-27 | 中国计量大学 | Rapid image acquisition method for express delivery mobile terminal |
| CN114554091B (en) * | 2022-02-23 | 2023-10-20 | 中国计量大学 | Quick image acquisition method for express mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105763817B (en) | 2020-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11693115B2 (en) | Determining positional information of an object in space | |
| CN105143820B (en) | Depth scan is carried out using multiple transmitters | |
| CN105763817A (en) | Image erasing device and method, and image scanning system | |
| EP2545491B1 (en) | Image capturing device | |
| CN104812291B (en) | Scanner for oral cavity | |
| CN1101056C (en) | Improved optical ranging camera | |
| US10652513B2 (en) | Display device, display system and three-dimension display method | |
| US20100060904A1 (en) | Hand-held surface profiler | |
| JP2001050723A (en) | Distance measuring equipment | |
| US20110069154A1 (en) | High speed, high resolution, three dimensional solar cell inspection system | |
| KR20120084738A (en) | High speed, high resolution, three dimensional solar cell inspection system | |
| CN1242074A (en) | Method and apparatus for three-dimensional color scanning | |
| CN109725299A (en) | A kind of laser scanning device, radar installations and its scan method | |
| US20170075101A1 (en) | Imaging microscope samples | |
| CN105391954B (en) | A kind of image-scanning system and image scanning module | |
| CN1545610A (en) | Position detecting device | |
| CN1532577A (en) | Exposure device | |
| CN102961122B (en) | Full-angle fluorescent molecular tomography imaging device based on rotating mirror | |
| CN103424737A (en) | Optical signal transmission structure of laser ranging device | |
| CN105430300B (en) | A kind of image-scanning system, device and method | |
| CN107608072A (en) | A kind of optical scanner of image-scanning system | |
| CN205610785U (en) | Device and image scanning system are erased to image | |
| CN205123882U (en) | Image scanning system and device | |
| CN205336416U (en) | Image scanning system and image scanning module | |
| CN216899555U (en) | Detection device and three-dimensional printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |