CN109719951A - 3D printing scanning system - Google Patents
3D printing scanning system Download PDFInfo
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- CN109719951A CN109719951A CN201811648822.5A CN201811648822A CN109719951A CN 109719951 A CN109719951 A CN 109719951A CN 201811648822 A CN201811648822 A CN 201811648822A CN 109719951 A CN109719951 A CN 109719951A
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Abstract
The invention discloses a kind of 3D printing scanning systems, including following part: parsing module, for parsing the model file information to 3D printing；Detection module, the model file for treating 3D printing carry out Spot detection, obtain initial center collection C0(x,y)；The present invention can be effectively reduced alias, and can simultaneously multiple centers be carried out with the precision of position assurance printing.
Description
Technical field
The present invention relates to 3D printing technique field, specially a kind of 3D printing scanning system.
Background technique
There is more obvious alias in 3D printing using annular fill path generating mode, when part boundary is taken turns
When wide smaller with scanning direction angle, alias is more obvious, has seriously affected the forming accuracy of 3D printing.
Summary of the invention
The purpose of the invention is to overcome above-mentioned deficiency to provide a kind of 3D printing scanning system.
A kind of 3D printing scanning system, including following part:
Parsing module, for parsing the model file information to 3D printing；
Detection module, the model file for treating 3D printing carry out Spot detection, obtain initial center collection C0(x,y)；
Central point determining module, for initial center collection C0(x, y) carries out error sum of squares SSE processing, wherein SSE
Calculation formula be,
Wherein CiIt is i-th of cluster, p is CiIn sample point, diIt is CiIn all samples mean value；To two groups detected
Center collection C1(x, y) and C2(x, y) seeks its central point O1(a, b) and O2(a, b) is used as initial center；Then with initial center
Centered on, certain length R be radius, radius R be formed by circle will include respective center collection concentrated part, delete circle with
Outer point, that is, abnormal point；Central point is sought to new center collection again, obtains O iteration w times3(a, b) and O4(a, b), i.e.,
For the corresponding central point of boundary element；
Polygon determining module, for determining Thiessen polygon corresponding to boundary element；
Scan path generation module is directed to the side for generating according to the boundary element to the Thiessen polygon
The scan path section of bound component.
It further, further include that abnormal point screening module is gone for parsing after the model file information of 3D printing
It makes an uproar；The neighborhood that size is S is chosen, with the pixel value in the big minispread neighborhood of intensity value, selection is arranged in pixel set
Between new value of the value as abnormal point.
Further, the number of iterations w is 4 times.
The present invention can be effectively reduced alias, and can simultaneously multiple centers be carried out with the precision of position assurance printing.
Specific embodiment
3D printing scanning system of the present invention is made the following instructions below with reference to a specific embodiment of the invention.
Embodiment: a kind of 3D printing scanning system, including following part:
Parsing module, for parsing the model file information to 3D printing；
Detection module, the model file for treating 3D printing carry out Spot detection, obtain initial center collection C0(x,y)；
Central point determining module, for initial center collection C0(x, y) carries out error sum of squares SSE processing, wherein SSE
Calculation formula be,
Wherein CiIt is i-th of cluster, p is CiIn sample point, diIt is CiIn all samples mean value；To two groups detected
Center collection C1(x, y) and C2(x, y) seeks its central point O1(a, b) and O2(a, b) is used as initial center；Then with initial center
Centered on, certain length R be radius, radius R be formed by circle will include respective center collection concentrated part, delete circle with
Outer point, that is, abnormal point；Central point is sought to new center collection again, obtains O iteration w times3(a, b) and O4(a, b), i.e.,
For the corresponding central point of boundary element；
Polygon determining module, for determining Thiessen polygon corresponding to boundary element；
Scan path generation module is directed to the side for generating according to the boundary element to the Thiessen polygon
The scan path section of bound component.
It further, further include that abnormal point screening module is gone for parsing after the model file information of 3D printing
It makes an uproar；The neighborhood that size is S is chosen, with the pixel value in the big minispread neighborhood of intensity value, selection is arranged in pixel set
Between new value of the value as abnormal point.
Further, the number of iterations w is 4 times.
Claims (3)
1. a kind of 3D printing scanning system, it is characterised in that including following part:
Parsing module, for parsing the model file information to 3D printing；
Detection module, the model file for treating 3D printing carry out Spot detection, obtain initial center collection C0(x,y)；
Central point determining module, for initial center collection C0(x, y) carries out error sum of squares SSE processing, the wherein calculating of SSE
Formula is,
Wherein CiIt is i-th of cluster, p is CiIn sample point, diIt is CiIn all samples mean value；To the two groups of center collection detected
C1(x, y) and C2(x, y) seeks its central point O1(a, b) and O2(a, b) is used as initial center；Then centered on initial center,
Certain length R is radius, and radius R is formed by the concentrated part that circle will include respective center collection, and deleting the point other than circle is
Abnormal point；Central point is sought to new center collection again, obtains O iteration w times3(a, b) and O4(a, b), as boundary element
Corresponding central point；
Polygon determining module, for determining Thiessen polygon corresponding to boundary element；
Scan path generation module is directed to the boundary element for generating according to the boundary element to the Thiessen polygon
Scan path section.
2. 3D printing scanning system according to claim 1, which is characterized in that further include abnormal point screening module, be used for
Parsing is denoised after the model file information of 3D printing；The neighborhood that size is S is chosen, it is adjacent with the big minispread of intensity value
Pixel value in domain selects new value of the median in arrangement pixel set as abnormal point.
3. 3D printing scanning system according to claim 2, which is characterized in that the number of iterations w is 4 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648822.5A CN109719951A (en) | 2018-12-30 | 2018-12-30 | 3D printing scanning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648822.5A CN109719951A (en) | 2018-12-30 | 2018-12-30 | 3D printing scanning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109719951A true CN109719951A (en) | 2019-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811648822.5A Pending CN109719951A (en) | 2018-12-30 | 2018-12-30 | 3D printing scanning system |
Country Status (1)
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| CN (1) | CN109719951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741457A (en) * | 2018-12-31 | 2019-05-10 | 武汉朋谊科技有限公司 | 3D printing scan method |
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2018
- 2018-12-30 CN CN201811648822.5A patent/CN109719951A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741457A (en) * | 2018-12-31 | 2019-05-10 | 武汉朋谊科技有限公司 | 3D printing scan method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190507 |