CN103824288A - Array image registration template for lens array - Google Patents
Array image registration template for lens array Download PDFInfo
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- CN103824288A CN103824288A CN201410052678.4A CN201410052678A CN103824288A CN 103824288 A CN103824288 A CN 103824288A CN 201410052678 A CN201410052678 A CN 201410052678A CN 103824288 A CN103824288 A CN 103824288A
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Abstract
The invention belongs to the spectral imaging technical field, and relates to an array image registration template for a lens array, in particular relates to an array image registration template used for snapshot imaging. The array image registration template includes a black substrate and white characteristic lines etched in the substrate; the characteristic lines include equidistantly-distributed vertical lines and equidistantly-distributed horizontal lines; a grid can be formed through enclosing two adjacent vertical lines and two adjacent horizontal lines; and a characteristic marking code is etched inside each grid. According to the array image registration template of the invention, the black substrate and the white characteristic lines are adopted, and therefore, mask of characteristics caused by the scattered light of the substrate can be alleviated, and the signal-to-noise ratio of an image can be improved, and improvement of registration accuracy can be benefitted; and coded characteristic points are adopted as the designed characteristic marking codes, and therefore, the search speed of the characteristic points can be accelerated, and when one or two characteristic points are searched, the locations of other characteristic points can be determined according to grid intersection points, and registration efficiency can be improved.
Description
Technical field
Array image registration template for lens arra belongs to a light spectrum image-forming technical field, is specifically related to a kind of array image registration template for snapshot imaging.
Background technology
In array light spectrum image-forming, first gather subgraph based on lens arra, then carry out spectrum recovering.The process of spectrum recovering, need to all subgraphs in target a bit corresponding same place extract and form interference data collection, in the ideal case, only need the point that extracts the same coordinate of each subgraph just can obtain interference data collection.But, because the processing of array sub-lens exists flaw, some errors of imaging lens, the reason such as light path is asymmetric, makes to gather array subgraph structural information out not quite identical, therefore, before spectrum recovering work, also needs all subgraphs to carry out registration.
Method for registering images comprises direct registration and template registration, with respect to the method for the direct registration of reference diagram, there is calculated amount large, the shortcoming of length consuming time, and template method for registering, first utilize system to gather template, recycling template data carries out registration, finally utilize this registration data directly gathered target subgraph to be converted, because the template of design has obvious characteristic, extract minutiae algorithm is simple, and can accomplish very high to the registration accuracy of target, the registration data storing can directly be carried out registration target subgraph as the registration data of system, do not take like this time of spectrum recovering, the processing speed of whole system and precision will improve greatly.Therefore, template registration is application method for registering more widely in method for registering images.
The core technology of template method for registering is template, application number is 201020672435.8 invention, discloses a kind of image calibration template that can automatically set up image coordinate system, applies this template and carries out array subgraph registration, still need image to carry out compared with multiprocessing, registration efficiency is still not high enough.
Summary of the invention
In order to address the above problem, the present invention has designed a kind of array image registration template for lens arra, and this array image registration template, in having desirable registration accuracy, has improved registration efficiency.
The object of the present invention is achieved like this:
A kind of array image registration template for lens arra, comprise the substrate of black and be etched in suprabasil white characteristic line, described characteristic line comprises the ordinate of equidistant distribution and the horizontal line equidistantly distributing, adjacent two ordinates and adjacent two horizontal lines surround grid, and grid inside is etched with signature coding.
The above-mentioned array image registration template for lens arra, described signature is encoded to circle, ellipse, triangle, oblique line section, square, rectangle, cruciform.
Described signature is encoded to the inscribed figure shape of grid.
45 ° of the equal angulations of described oblique line section and ordinate and horizontal line.
The above-mentioned array image registration template for lens arra, the signature coding composition encoded point of grid and inner etching thereof, the quantity of described encoded point is no less than 2.
The above-mentioned array image registration template for lens arra, the signature coding shape in different grids is identical with size.
The above-mentioned array image registration template for lens arra, signature in different grids coding shape or vary in size.
The beneficial effect that the present invention is directed to the array image registration template of lens arra is:
The first, adopt the substrate of black and the characteristic line of white, can reduce substrate scattered light to the covering of feature, improve the signal to noise ratio (S/N ratio) of image, be conducive to improve registration accuracy;
The second, characteristic line adopts the ordinate equidistantly distributing and the horizontal line equidistantly distributing, adjacent two ordinates and adjacent two horizontal lines surround grid, grid inside is etched with signature coding, this design, adopt the unique point through coding, can accelerate the search speed of unique point, when after one to two unique point of search, other characteristic point positions can be determined according to grid intersection, improve registration efficiency; Meanwhile, mesh lines can be used as feature and carries out registration, is conducive to equally improve registration accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of array image registration template specific embodiment one of the present invention.
Fig. 2 is the structural representation of array image registration template specific embodiment two of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Specific embodiment one
The array image registration template for lens arra of the present embodiment, schematic diagram as shown in Figure 1.This array image registration template comprises the substrate of black and is etched in suprabasil white characteristic line, described characteristic line comprises the ordinate of equidistant distribution and the horizontal line equidistantly distributing, adjacent two ordinates and adjacent two horizontal lines surround grid, wherein, each 5 of ordinate and horizontal line, form 16 square nets altogether.Grid inside is etched with signature coding, and described signature is encoded to the oblique line section with 45 ° of ordinate and the equal angulations of horizontal line.Wherein:
Oblique line section in upper left four grids is pointed to grid element center from the lower right of grid;
Oblique line section in four grids of lower left is pointed to grid element center from the upper right side of grid;
Oblique line section in top-right four grids is pointed to grid element center from the lower left of grid;
Oblique line section in bottom-right four grids is pointed to grid element center from the upper left side of grid.
Specific embodiment two
The array image registration template for lens arra of the present embodiment, schematic diagram as shown in Figure 2.This array image registration template comprises the substrate of black and is etched in suprabasil white characteristic line, described characteristic line comprises the ordinate of equidistant distribution and the horizontal line equidistantly distributing, adjacent two ordinates and adjacent two horizontal lines surround grid, wherein, each 5 of ordinate and horizontal line, form 16 square nets altogether.Grid inside is etched with signature coding, described signature coding comprises the circle that is connected to the second row secondary series grid in, with be connected to lower right from the third line the 3rd row grid upper left side, be connected to top-right cruciform from the third line the 3rd row grid lower left.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn structural change or the method improvement of under enlightenment of the present invention, making, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (7)
1. the array image registration template for lens arra, it is characterized in that, comprise the substrate of black and be etched in suprabasil white characteristic line, described characteristic line comprises the ordinate of equidistant distribution and the horizontal line equidistantly distributing, adjacent two ordinates and adjacent two horizontal lines surround grid, and grid inside is etched with signature coding.
2. a kind of array image registration template for lens arra according to claim 1, is characterized in that, described signature is encoded to circle, ellipse, triangle, oblique line section, square, rectangle, cruciform.
3. a kind of array image registration template for lens arra according to claim 2, is characterized in that, described signature is encoded to the inscribed figure shape of grid.
4. a kind of array image registration template for lens arra according to claim 2, is characterized in that 45 ° of the equal angulations of described oblique line section and ordinate and horizontal line.
5. a kind of array image registration template for lens arra according to claim 1, is characterized in that, the signature coding composition encoded point of grid and inner etching thereof, and the quantity of described encoded point is no less than 2.
6. a kind of array image registration template for lens arra according to claim 1, is characterized in that, the signature coding shape in different grids is identical with size.
7. a kind of array image registration template for lens arra according to claim 1, is characterized in that, signature in different grids coding shape or vary in size.
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| CN201410052678.4A CN103824288A (en) | 2014-02-17 | 2014-02-17 | Array image registration template for lens array |
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| CN201410052678.4A CN103824288A (en) | 2014-02-17 | 2014-02-17 | Array image registration template for lens array |
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Cited By (2)
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| CN108664863A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Image data processing system based on coding pattern |
| CN110262048A (en) * | 2017-05-18 | 2019-09-20 | 中国人民解放军装甲兵工程学院 | The calibration method of integration imaging light field display system lens array |
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| CN202057299U (en) * | 2010-12-14 | 2011-11-30 | 李军 | Image calibration template capable of automatically establishing image coordinate system |
| CN102157013A (en) * | 2011-04-09 | 2011-08-17 | 温州大学 | System for fully automatically reconstructing foot-type three-dimensional surface from a plurality of images captured by a plurality of cameras simultaneously |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108664863A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Image data processing system based on coding pattern |
| CN110262048A (en) * | 2017-05-18 | 2019-09-20 | 中国人民解放军装甲兵工程学院 | The calibration method of integration imaging light field display system lens array |
| CN110262048B (en) * | 2017-05-18 | 2021-03-23 | 中国人民解放军装甲兵工程学院 | Calibration method for lens array of integrated imaging light field display system |
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Application publication date: 20140528 |