CN103927755A - Method for processing multi-field-depth image - Google Patents
Method for processing multi-field-depth image Download PDFInfo
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- CN103927755A CN103927755A CN201410166493.6A CN201410166493A CN103927755A CN 103927755 A CN103927755 A CN 103927755A CN 201410166493 A CN201410166493 A CN 201410166493A CN 103927755 A CN103927755 A CN 103927755A
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Abstract
The invention provides a method for processing a multi-field-depth image. The method comprises the steps that (1), test images Cm, which correspond to different heights and are obtained by an imaging system at different positions of the Z-axis, of a test sample are adjusted, wherein m is a natural number larger than 2; (2) each image Cm is divided into N lines and S columns and N*S blocks, the division methods of all the images Cm are identical, N and S are both natural numbers larger than 2, and the image block, on the ith line and the pth column, of each test image Cm is named a subimage NmiSmp, wherein i is larger than or equal to 2 and smaller than or equal to N, and p is larger than or equal to 2 and smaller than or equal to N; (3) i and p are constant in sequence, the most clear image is selected from the m subimages NmiSmp to be used as the result subimage, on the ith line and the pth column, of a result image, and N*S obtained subimages are spliced into the result image. By the adoption of the method for processing the multi-field-depth image, the surface condition of a test sample with a concave-convex surface can be reflected; the method for processing the multi-field-depth image has the advantages that surface image information is accurate.
Description
Technical field
The present invention relates to radiographic measurement technical field, particularly relate to a kind of many depth images disposal route.
Background technology
Along with progress and the development of technology, radiographic measurement has been widely used in the various aspects of industrial technology.Because radiographic measurement has the advantages such as rapid, direct, accurate, image automatic measurer is also updated thereupon.
Image measurer of the prior art is provided with a horizontal base conventionally, on horizontal base, be provided with test platform, the direction vertical with horizontal base is provided with radiographic measurement mechanism, by adjusting radiographic measurement mechanism with respect to the relative position that detects sample on test platform, the difference of detection sample is crossed to position and carry out imaging.
A test sample is carried out in testing process, and when adjusting behind image mechanism and the position of testing between sample, the image of the test sample surface as captured in camera lens of image mechanism is unique.For definitely smooth detection sample of surface, the fore-and-aft distance between image mechanism and test sample does not have image to the image that detects sample surfaces.And most sample surfaces that detect all exist certain concavo-convexly, there is the different depth of field, under fixing longitudinal detections distance, will there is error in the sharpness at the corresponding detection of image mechanism imaging sample diverse location place like this.Be difficult to obtain the complete image clearly of detection sample surfaces.
Therefore,, for prior art deficiency, provide a kind of many depth images disposal route that detects sample surfaces picture rich in detail that can embody to overcome very necessity of prior art deficiency.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art part and a kind of many depth images disposal route is provided, this many depth images disposal route can obtain the picture rich in detail that detects the each point of sample.
Above-mentioned purpose of the present invention realizes by following technological means.
A kind of many depth images disposal route, comprises the steps,
(1) plane at test platform place is defined as to surface level, in selection level face, two orthogonal straight lines are defined as respectively X-axis and Y-axis, to cross the intersection point of X-axis and Y-axis and be defined as Z axis perpendicular to the straight line of surface level, adjust imaging system obtains respectively detection sample corresponding to differing heights place test pattern Cm at m diverse location place of Z axis, m is greater than 2 natural number;
(2) every width image C m is divided into the capable S row of N according to identical mode, every width image is divided into respectively N × S piece, and N and S are the natural number that is greater than 2;
By the image block called after subimage NmiSmp of capable i in test pattern Cm p row, wherein, 2≤i≤N, 2≤p≤N;
(3) according to the synthetic result images of subimage NmiSmp.
onstate step (3) specifically, make successively i, p fix, from m width subimage NmiSmp, select the as a result of image that bears fruit of the capable p row of i of image of image the most clearly, be combined into result images by obtained N × S agllutination fruit image.
Preferably, 5≤m≤200.
Preferably, it is capable that the row of every width image C m is divided into N by step (2), and the column average of every width image C m is divided into S row.
Preferably, 3≤N≤200,3≤S≤200.
Preferably, in above-mentioned steps (1), imaging system moves from top to bottom, obtains different test pattern Cm successively at m diverse location place of Z axis.
Another is preferred, and in above-mentioned steps (1), imaging system moves from the bottom up, obtains different test pattern Cm successively at m diverse location place of Z axis.
Another is preferred, and in above-mentioned steps (1), imaging system comes and goes and moves, and obtains different test pattern Cm successively at m diverse location place of Z axis.
Many depth images disposal route of the present invention, comprise the steps, (1) plane at test platform place is defined as to surface level, in selection level face, two orthogonal straight lines are defined as respectively X-axis and Y-axis, to cross the intersection point of X-axis and Y-axis and be defined as Z axis perpendicular to the straight line of surface level, adjust imaging system obtains respectively detection sample corresponding to differing heights place test pattern Cm at m diverse location place of Z axis, m is greater than 2 natural number; (2) every width image C m is divided into the capable S row of N according to identical mode, every width image is divided into respectively N × S piece, and N and S are the natural number that is greater than 2; By the image block called after subimage NmiSmp of capable i in test pattern Cm p row, wherein, 2≤i≤N, 2≤p≤N; (3) according to the synthetic result images of subimage NmiSmp.Many depth images disposal route provided by the invention, can reflect and the surface condition of the irregular detection sample of surperficial tool have surface image information feature accurately.
Brief description of the drawings
The present invention is further illustrated to utilize accompanying drawing, but content in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the schematic diagram of a kind of many depth images disposal route of the present invention.
Embodiment
The invention will be further described with the following Examples.
embodiment 1.
A kind of many depth images disposal route, as shown in Figure 1, comprises the following steps.
(1) plane at test platform place is defined as to surface level, in selection level face, two orthogonal straight lines are defined as respectively X-axis and Y-axis, to cross the intersection point of X-axis and Y-axis and be defined as Z axis perpendicular to the straight line of surface level, adjust imaging system obtains respectively detection sample corresponding to differing heights place test pattern Cm at m diverse location place of Z axis, m is greater than 2 natural number, preferably 5≤m≤200.
It should be noted that, X-axis, Y-axis and Z axis coordinate system set in this programme are relative, in reality, can adjust as Y-axis is transformed to X-axis or Z axis coordinate system as the case may be, and other corresponding adjustment, and do not affect the technical program.
(2) every width image C m is divided into the capable S row of N according to identical mode, every width image is divided into respectively N × S piece, and N and S are the natural number that is greater than 2;
By the image block called after subimage NmiSmp of capable i in test pattern Cm p row, wherein, 2≤i≤N, 2≤p≤N; Preferred 3≤N≤200,3≤S≤200.
(3) according to the synthetic result images of subimage NmiSmp.
Step (3) specifically, makes i, p fix successively, selects the as a result of image that bears fruit of the capable p row of i of image of image the most clearly from m width subimage NmiSmp, is combined into result images by obtained N × S agllutination fruit image.
This many depth images disposal route, obtains diverse location place sample for reference surface image by adjusting imaging system at multiple diverse locations of Z axis, obtains the image of the corresponding different depth of field by imaging system at the diverse location of Z axis.Because sample for reference surface exists concavo-convexly, detect position in the difference of sample for reference, the clearly image imaging system corresponding with it all has a corresponding optimum height.Therefore, imaging system is obtained diverse location place sample for reference surface image at multiple diverse locations of Z axis, the image the most clearly of each position is carried out to amalgamation and forms final reflection and detect the result images of sample surface information.Result images is clear, can effectively reflect the surface information that detects sample, meets the needs of modern high-precision detection.
embodiment 2.
A kind of many depth images disposal route, other features are identical with embodiment 1, and difference is: it is capable that the row of every width image C m is divided into N by step (2), and the column average of every width image C m is divided into S row.There is easy to operate feature.
It should be noted that, step (2) can also, according to particular exam sample surfaces feature, be carried out concrete piecemeal setting according to the significance level of sample for reference different parts, and important position is divided into the fritter that quantity is many, and unessential position is adopted to bulk.There is result accurate, the feature that the precision of images is high.
embodiment 3.
A kind of many depth images disposal route, other features are identical with embodiment 1 or 2, difference is: in step (1), imaging system adopts and moves from top to bottom, obtains different test pattern Cm successively at m diverse location place of Z axis, has easy to operate feature.
It should be noted that, in step (1), imaging system can also move from the bottom up, obtains different test pattern Cm successively at m diverse location place of Z axis.Or can be also that imaging system is round mobile, obtain different test pattern Cm at m diverse location place of Z axis successively.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (8)
1. the disposal route of depth image more than, is characterized in that: comprises the steps,
(1) plane at test platform place is defined as to surface level, in selection level face, two orthogonal straight lines are defined as respectively X-axis and Y-axis, to cross the intersection point of X-axis and Y-axis and be defined as Z axis perpendicular to the straight line of surface level, adjust imaging system obtains respectively detection sample corresponding to differing heights place test pattern Cm at m diverse location place of Z axis, m is greater than 2 natural number;
(2) every width image C m is divided into the capable S row of N according to identical mode, every width image is divided into respectively N × S piece, and N and S are the natural number that is greater than 2;
By the image block called after subimage NmiSmp of capable i in test pattern Cm p row, wherein, 2≤i≤N, 2≤p≤N;
(3) according to the synthetic result images of subimage NmiSmp.
2. many depth images disposal route according to claim 1, it is characterized in that: described step (3) specifically, make successively i, p fix, from m width subimage NmiSmp, select the as a result of image that bears fruit of the capable p row of i of image of image the most clearly, be combined into result images by obtained N × S agllutination fruit image.
3. many depth images disposal route according to claim 2 is characterized in that: 5≤m≤200.
4. many depth images disposal route according to claim 2 is characterized in that: the row of every width image C m is divided into N capable, the column average of every width image C m is divided into S row.
5. many depth images disposal route according to claim 4 is characterized in that: 3≤N≤200,3≤S≤200.
6. many depth images disposal route according to claim 1 is characterized in that: in described step (1), imaging system moves from top to bottom, obtains different test pattern Cm successively at m diverse location place of Z axis.
7. many depth images disposal route according to claim 1, is characterized in that: in described step (1), imaging system moves from the bottom up, obtains different test pattern Cm successively at m diverse location place of Z axis.
8. many depth images disposal route according to claim 1, is characterized in that: in described step (1), imaging system comes and goes and moves, and obtains different test pattern Cm successively at m diverse location place of Z axis.
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| CN201410166493.6A CN103927755A (en) | 2014-04-23 | 2014-04-23 | Method for processing multi-field-depth image |
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Cited By (2)
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| CN111386435A (en) * | 2017-11-27 | 2020-07-07 | 三菱电机株式会社 | Refrigerator and refrigerator system |
| CN112136014A (en) * | 2018-05-31 | 2020-12-25 | 三菱电机株式会社 | Refrigerator system |
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Effective date of registration: 20150921 Address after: 523000 Guangdong city of Dongguan province Dongcheng District Shijing Guangyuan Road No. 7 Applicant after: Dongguan City Tian Qin Instrument Ltd. Applicant after: Hong Jinlong Address before: 523000 Guangdong city of Dongguan province Dongcheng District Shijing Guangyuan Road No. 7 Applicant before: Dongguan City Tian Qin Instrument Ltd. |
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Application publication date: 20140716 |