CN1796931A - Automated interpretation system and method for geometry elements of image - Google Patents
Automated interpretation system and method for geometry elements of image Download PDFInfo
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- CN1796931A CN1796931A CN 200410091888 CN200410091888A CN1796931A CN 1796931 A CN1796931 A CN 1796931A CN 200410091888 CN200410091888 CN 200410091888 CN 200410091888 A CN200410091888 A CN 200410091888A CN 1796931 A CN1796931 A CN 1796931A
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Abstract
The invention is an auto distinguishing system of geometrical elements in a video, obtaining the video information led into a reference frame from a video collector and automatically distinguishing the geometric elements in the video, comprising: an input module for collecting a point set and reading the coordinates of all points in the point set; a distinguishing fitting module for making the fitting calculation of the geometric elements and automatically distinguishing them according to the collected coordinates of all points in the point set; a data memory module for storing the coordinates of all points in the point set, the data in the fitting calculating course, and the result after fitting calculation; and an output module for outputting the fitting result. The invention also provides an auto distinguishing method of geometrical elements in a video, able to distinguish different geometric elements in a video.
Description
[technical field]
The present invention relates to a kind of image measuring system and method, particularly a kind of interpreting system of geometry elements of image and method.
[background technology]
(Charge Coupled Device, image measuring system CCD) have high-accuracy property and measurement stability, and the executable radiographic measurement instrument of computing machine makes the CCD image measuring system be widely used in fields of measurement in the collocation to utilize charge-coupled device (CCD).
Present existing radiographic measurement instrument, operation steps is more loaded down with trivial details, for example if measure a circle, at first will select measured circle, selects circular survey instrument again, thereby obtains circular characteristic information in image.The measurement of each geometric element needs corresponding different measuring command, and corresponding different survey instruments.When using these radiographic measurement instruments to measure different geometric element, survey crew need be selected different survey instruments respectively, thereby has reduced efficiency of measurement, does not also give full play to the subsidiary function of computing machine.
Therefore, be necessary to provide a kind of image measuring system and method, can automatic interpretation different geometric elements, and do not need to select different survey instruments.
[summary of the invention]
The object of the invention is to provide a kind of geometry elements of image automated interpretation system, its can be in measuring process the different geometry elements of image of automatic interpretation.
Another purpose of the present invention is to provide a kind of geometry elements of image automatic interpretation method, its can be in measuring process the different geometry elements of image of automatic interpretation.
For realizing the object of the invention, provide a technical scheme as follows:
A kind of geometry elements of image automated interpretation system, it obtains image information after importing coordinate system from an image collection instrument, and the geometric element in the automatic interpretation image, this system comprises: a load module is used to gather point set and reads the coordinate of a little concentrating all points; One interpretation fitting module is used for concentrating the coordinate of all points to carry out the The Fitting Calculation and the automatic interpretation geometric element of geometric element according to the point that collects; One data storage module is used for storing spot and concentrates object information after the data of the coordinate had a few, The Fitting Calculation process and the The Fitting Calculation; And an output module, be used to export fitting result information.
Wherein said interpretation fitting module is carried out the The Fitting Calculation of geometric element according to following steps: at first judging point is concentrated the quantity of the point that comprises, and only comprises a point if point is concentrated, and the match point set is the some element; Comprise and only comprise two points if point is concentrated, the match point set is a vertical element; Surpass two points if point is concentrated to comprise, calculate the rectilinear form tolerance and the round-shaped tolerance of this point set; If the rectilinear form tolerance of this point set is greater than the round-shaped tolerance of this point set, then this point set of match is a circular elements; If the rectilinear form tolerance of this point set is less than the round-shaped tolerance of this point set, then this point set of match is a vertical element.
For realizing another object of the present invention, provide a technical scheme as follows:
A kind of geometry elements of image automatic interpretation method comprises step: gather point set; Only comprise a point if point is concentrated, then the match point set is the some element; Comprise and only comprise two points if point is concentrated, then the match point set is a vertical element; Surpass two points if point is concentrated to comprise, then calculate the rectilinear form tolerance and the round-shaped tolerance of this point set; If the rectilinear form tolerance of this point set is greater than the round-shaped tolerance of this point set, then this point set of match is a circular elements; If the rectilinear form tolerance of this point set is less than the round-shaped tolerance of this point set, then this point set of match is a vertical element; Output fitting result information.
The geometric element of the present invention in can intelligentized distinguishing image, the different geometric elements of interpretation only need use with a kind of radiographic measurement instrument.The present invention has made full use of computing machine and has carried out complex set element The Fitting Calculation, has reduced the operate miss by artificial calculating, thereby has improved measuring accuracy.
[description of drawings]
Fig. 1 is the applied hardware structure figure of the present invention.
Fig. 2 is the functional block diagram of geometry elements of image automated interpretation system of the present invention.
Fig. 3 is the process flow diagram of geometry elements of image automatic interpretation method of the present invention.
Fig. 4 is a geometric element match synoptic diagram of the present invention.
[embodiment]
As shown in Figure 1, be the applied hardware structure figure of the present invention.On worktable 11, place article 12 to be measured, upper fixed at article 12 to be measured has one group of optical lens 13, this group optical lens 13 is sent to charge-coupled device (CCD) (Charge Coupled Device with the optical signalling of article 12 to be measured, CCD) 14, CCD is converted to the optical signalling that receives electrical signal and electrical signal is sent to image collection card 15.Computing machine 10 obtains the electrical signal of article 12 images to be measured from image collection card 15, and electrical signal is converted into computing machine 10 can discerns accessible digital signal.
As shown in Figure 2, be the functional block diagram of geometry elements of image automated interpretation system of the present invention.Computing machine 10 obtains the electrical signal of article 12 images to be measured by an image collection instrument 101 from image collection card 15, and electrical signal is converted into computing machine 10 can discerns accessible digital signal.Digital signal after image collection instrument 101 also will transform imports a coordinate system, thereby makes the image of article 12 to be measured have the position determinacy.Usually, measurement plane image if desired, then image collection instrument 101 imports two dimensional surface coordinate system (2 Dimensional Coordinate System) with the digital signal of image, in the image have a few and all have definite two-dimensional coordinate value; Measure stereopsis if desired, then image collection instrument 101 imports 3 D stereo coordinate system (3Dimensional Coordinate System) with the digital signal of image, in the image have a few and all have definite D coordinates value.Image collection instrument 101 belongs to know knows technology, has multiple image collection instrument 101 can realize image is imported coordinate system in this area, so no longer launches narration in the instructions of the present invention.
Geometry elements of image automated interpretation system 102 of the present invention, obtain image information after importing coordinate system from an image collection instrument 101, and the geometric element in the automatic interpretation image, this system 102 comprises: a load module 1021 is used to gather point set and reads the coordinate of a little concentrating all points; One interpretation fitting module 1022 is used for concentrating the coordinate of all points to carry out the The Fitting Calculation and the automatic interpretation geometric element of geometric element according to the point that collects; One data storage module 1023 is used for storing spot and concentrates object information after the data of the coordinate had a few, The Fitting Calculation process and the The Fitting Calculation; And an output module 1025, be used to export fitting result information.Wherein said interpretation fitting module 1022 is carried out the The Fitting Calculation of geometric element according to following steps: at first judging point is concentrated the quantity of the point that comprises, and only comprises a point if point is concentrated, and the match point set is the some element; Comprise and only comprise two points if point is concentrated, the match point set is a vertical element; Surpass two points if point is concentrated to comprise, calculate the rectilinear form tolerance L and the round-shaped tolerance C of this point set; If the rectilinear form tolerance L of this point set is greater than the round-shaped tolerance C of this point set, then this point set of match is a circular elements; If the rectilinear form L tolerance of this point set is less than the round-shaped tolerance C of this point set, then this point set of match is a vertical element.
If the rectilinear form tolerance L of this point set equals the round-shaped tolerance C of this point set, in different embodiment, can this point set of match be circular elements, can this point set of match be vertical element also.
Geometry elements of image automated interpretation system 102 of the present invention can also comprise a parameter setting module 1024, is used to set the project of output fitting result information.
Geometry elements of image automated interpretation system 102 of the present invention is carried out a geometry elements of image automatic interpretation method, and this geometry elements of image automatic interpretation method is introduced in detail in conjunction with Fig. 3.
As shown in Figure 3, be the process flow diagram of geometry elements of image automatic interpretation method of the present invention.At first, load module 1021 is gathered point set (step S31).Geometry elements of image automated interpretation system 102 obtains the image information after importing coordinate system from above-mentioned image collection instrument 101, mouse (Mouse) or keyboard (Keyboard) by computing machine 10 are gathered one or more point in the shown image of computer display (Monitor), the point that load module 1021 will collect constitutes a point set, and reads the coordinate of a little concentrating all points.
Described interpretation fitting module 1022 is the quantity N (step S32) of the concentrated point that comprises of judging point at first.Only comprise a point (N=1) if point is concentrated, fitting module 1022 match point sets are for the some element and export match point element information (step S33), and the some element information mainly comprises the coordinate of an element.If concentrating, point comprises and only comprises two points (N=2), interpretation fitting module 1022 match point sets are vertical element, calculated line form tolerance L also exports fitting a straight line information (step S34), and the fitting a straight line information spinner will comprise the angle of some element coordinates, rectilinear form tolerance L and this straight line and a certain coordinate axis on the straight line.If concentrating to comprise, point surpasses two points (N＞=3), then interpretation fitting module 1022 first initial fitting point sets are vertical element and calculated line form tolerance L (step S35), and the initial fitting point set is circular elements and calculates round-shaped tolerance C (step S36) again.Among other embodiment of the present invention, can first execution in step S36 execution in step S35 again.
Interpretation fitting module 1022 is judged the rectilinear form tolerance L of this point set and the magnitude relationship (step S37) of round-shaped tolerance C.If the rectilinear form tolerance L of this point set is greater than the round-shaped tolerance C of this point set, then interpretation fitting module 1022 these point sets of match are circular elements and export match circle information (step S38) that match circle information can comprise the coordinate in the center of circle, round-shaped tolerance C, match diameter of a circle and radius; If the rectilinear form L tolerance of this point set is less than the round-shaped tolerance C of this point set, then interpretation fitting module 1022 these point sets of match are vertical element and export fitting a straight line information (step S34) that the fitting a straight line information spinner will comprise the angle of some element coordinates, rectilinear form tolerance L and this straight line and a certain coordinate axis on the straight line.If the rectilinear form tolerance L of this point set equals the round-shaped tolerance C of this point set, in different embodiments of the invention, can this point set of match be circular elements, can this point set of match be vertical element also.
In the embodiment of the invention, fitting a straight line element and circular elements are to adopt principle of least square method to finish, and the calculating of match principle, rectilinear form tolerance L and round-shaped tolerance C can be with reference to Fig. 4.
As shown in Figure 4, be geometric element match synoptic diagram of the present invention.Need that in step S34 point set is carried out fitting a straight line and calculate, need that in step S35 point set is carried out fitting a straight line and calculate and calculated line form tolerance L.Concentrate the coordinate of all points according to the point of being gathered, utilize least square method to calculate fitting a straight line, the shape trend that on behalf of point set, this fitting a straight line have a few.Coboundary straight line and lower boundary straight line are to concentrate topmost and the straight line of nethermost point through point respectively, and coboundary straight line and lower boundary straight line must be parallel with fitting a straight line.The minor increment of coboundary straight line and lower boundary straight line promptly is rectilinear form tolerance L.
Need that in step S38 point set is carried out circular fit and calculate, need that in step S36 point set is carried out circular fit and calculate and calculate round-shaped tolerance C.Concentrate the coordinate of all points according to the point of being gathered, utilize least square method to calculate match circle, the shape trend that on behalf of point set, this match circle have a few.Inner boundary circle and outer boundary circle are the circles of concentrating the point of interior and outermost respectively through point, and inner boundary is round and the outer boundary circle must have same center of circle O with the match circle.Inner boundary circle and outer boundary radius of a circle difference promptly are round-shaped tolerance C.
Claims (9)
1. geometry elements of image automated interpretation system, it obtains image information after importing coordinate system from an image collection instrument, and the geometric element in the automatic interpretation image, it is characterized in that this system comprises:
One load module is used to gather point set and reads the coordinate of a little concentrating all points;
One interpretation fitting module is used for concentrating the coordinate of all points to carry out the The Fitting Calculation and the automatic interpretation geometric element of geometric element according to the point that collects;
One data storage module is used for storing spot and concentrates object information after the data of the coordinate had a few, The Fitting Calculation process and the The Fitting Calculation; And
One output module is used to export fitting result information.
2. geometry elements of image automated interpretation system as claimed in claim 1, it is characterized in that, wherein said interpretation fitting module is carried out the The Fitting Calculation of geometric element according to following steps: at first judging point is concentrated the quantity of the point that comprises, and only comprises a point if point is concentrated, and the match point set is the some element; Comprise and only comprise two points if point is concentrated, the match point set is a vertical element; Surpass two points if point is concentrated to comprise, calculate the rectilinear form tolerance and the round-shaped tolerance of this point set; If the rectilinear form tolerance of this point set is greater than the round-shaped tolerance of this point set, then this point set of match is a circular elements; If the rectilinear form tolerance of this point set is less than the round-shaped tolerance of this point set, then this point set of match is a vertical element.
3. geometry elements of image automated interpretation system as claimed in claim 2 is characterized in that: if wherein the rectilinear form tolerance of point set equals the round-shaped tolerance of this point set, this point set of then described interpretation fitting module match is a circular elements.
4. geometry elements of image automated interpretation system as claimed in claim 2 is characterized in that: if wherein the rectilinear form tolerance of point set equals the round-shaped tolerance of this point set, this point set of then described interpretation fitting module match is a vertical element.
5. geometry elements of image automated interpretation system as claimed in claim 1 or 2 is characterized in that: this system comprises that also a parameter setting module is used to set the project of output fitting result information.
6. a geometry elements of image automatic interpretation method is characterized in that, this method comprises:
Gather point set;
Only comprise a point if point is concentrated, then this point set of match is the some element;
Comprise and only comprise two points if point is concentrated, then this point set of match is a vertical element;
Surpass two points if point is concentrated to comprise, calculate the rectilinear form tolerance and the round-shaped tolerance of this point set;
If the rectilinear form tolerance of this point set is greater than the round-shaped tolerance of this point set, then this point set of match is a circular elements;
If the rectilinear form tolerance of this point set is less than the round-shaped tolerance of this point set, then this point set of match is a vertical element; And
Output fitting result information.
7. geometry elements of image automatic interpretation method as claimed in claim 6 is characterized in that: if the rectilinear form tolerance of this point set equals the round-shaped tolerance of this point set, then this point set of match is a circular elements.
8. geometry elements of image automatic interpretation method as claimed in claim 6 is characterized in that: if the rectilinear form tolerance of this point set equals the round-shaped tolerance of this point set, then this point set of match is a vertical element.
9. geometry elements of image automatic interpretation method as claimed in claim 6 is characterized in that, wherein gathers point set and is meant: gather one or more some formation point set in the image, and read the coordinate of a little concentrating all points.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100918880A CN100344936C (en) | 2004-12-25 | 2004-12-25 | Automated interpretation system and method for geometry elements of image |
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| CNB2004100918880A CN100344936C (en) | 2004-12-25 | 2004-12-25 | Automated interpretation system and method for geometry elements of image |
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| CN1796931A true CN1796931A (en) | 2006-07-05 |
| CN100344936C CN100344936C (en) | 2007-10-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373540B (en) * | 2007-08-20 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | System and method for simplifying point clouds |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06221829A (en) * | 1992-12-16 | 1994-08-12 | Ona Electro Erosion Sa | Means for forming geometrical constitution of two-dimensional model by using artificial visual sense |
| GB2274526A (en) * | 1993-01-21 | 1994-07-27 | Motorola Inc | Verifying geometry of a part |
| CN1224938C (en) * | 2002-04-23 | 2005-10-26 | 中国科学院自动化研究所 | Method of measuring scene and geometric data of bodies inside the scene via single frame of image |
| JP2004163313A (en) * | 2002-11-14 | 2004-06-10 | Nikon Corp | Method and device for detecting contour, method and device for detecting position, and aligner |
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- 2004-12-25 CN CNB2004100918880A patent/CN100344936C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373540B (en) * | 2007-08-20 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | System and method for simplifying point clouds |
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