CN105783709A - Two-dimensional image detection method and apparatus thereof - Google Patents
Two-dimensional image detection method and apparatus thereof Download PDFInfo
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- CN105783709A CN105783709A CN201410809457.7A CN201410809457A CN105783709A CN 105783709 A CN105783709 A CN 105783709A CN 201410809457 A CN201410809457 A CN 201410809457A CN 105783709 A CN105783709 A CN 105783709A
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Abstract
The present invention relates to a two-dimensional image detection method. The method comprises the steps of placing a to-be-tested workpiece on a transparent display platform; displaying the two-dimensional drawing of the to-be-tested workpiece on the transparent display platform; overlapping the two-dimensional drawing of the to-be-tested workpiece with the material object of the to-be-tested workpiece; picking up the two-dimensional image of the to-be-tested workpiece from the front side and the back side of the transparent display platform at the same time; displaying the overlapped figure of the two-dimensional drawing of the to-be-tested workpiece and the two-dimensional image of the to-be-tested workpiece; and judging whether the to-be-tested workpiece is qualified or not according to the difference between the two-dimensional image of the to-be-tested workpiece and the two-dimensional drawing of the to-be-tested workpiece. Based on the above two-dimensional image detection method, whether the workpiece is qualified or not can be quickly judged based on the difference between the two-dimensional drawing and the two-dimensional image of the workpiece. In this way, the operation that the judgment can only be conducted through the calculation on the two-dimensional image of the workpiece is avoided. Therefore, the detection time is shortened, and the working efficiency is improved. In addition, the invention provides a two-dimensional image detection apparatus based on the above method.
Description
Technical field
The present invention relates to the radiographic measurement field of workpiece, particularly relate to a kind of bidimensional image detection method based on Transparence Display applicator platform and device thereof.
Background technology
For image measurer, the bidimensional image instrument measurement method of existing image instrument is to be placed on by measured workpiece in transparent glass platform, after photographic head detects, is shown on computer monitor by workpiece image, processes through software image and calculates, final outputting measurement value.By the contrast of this measured value and standard size, just would know that whether measured workpiece meets the specification, and and difference value between standard size.
The profile of measured workpiece, surface configuration size and position are had significantly high certainty of measurement by prior art, but when partial contour size, complex-shaped workpiece calibration, owing to needs utilize photographic head to take multiple measurements, cause that human users's complexity and measurement time will greatly increase, reduce work efficiency, and also certain error can be produced because of the difference of operator.
Summary of the invention
Based on this, it is necessary to provide a kind of bidimensional image measuring method, it is possible to shorten the detection time, improve work efficiency.
A kind of bidimensional image detection method, comprises the following steps: be placed in by measured workpiece on Transparence Display applicator platform；Described Transparence Display applicator platform shows the two-dimentional drawing of measured workpiece；Make the in kind overlapping of two dimension drawing and measured workpiece；Absorb the bidimensional image of described measured workpiece from the positive and negative both sides of described Transparence Display applicator platform simultaneously；The bidimensional image of display measured workpiece and the overlapping figure of two dimension drawing；Whether the bidimensional image according to measured workpiece is qualified with the diversity judgement measured workpiece of two dimension drawing.
Wherein in an embodiment, still further comprise following steps: calculate and export the bidimensional image of measured workpiece and the difference value of two dimension drawing.
Wherein in an embodiment, described two dimension drawing is CAD diagram paper.
Wherein in an embodiment, described in make two dimension drawing include with the in kind overlapping step of workpiece: with any point on measured workpiece or any bar line for benchmark, the two-dimentional drawing of movement makes it overlapping with measured workpiece.
Wherein in an embodiment, described in make in the in kind overlapping step of two dimension drawing and measured workpiece: bound figure with two-dimentional drawing for benchmark display measured workpiece or bound line on described Transparence Display applicator platform；The situation that overlaps according to described measured workpiece with described bound figure or bound line judges that whether measured workpiece is qualified, it is judged that qualified, terminates or enters next step, if cannot judge, then enters next step.
Wherein in an embodiment, the bidimensional image of described display measured workpiece with in the step of the overlapping figure of two dimension drawing, show the overlapping figure of the bidimensional image of measured workpiece and two-dimentional drawing on the display screen.
A kind of bidimensional image detecting device is also proposed, including Transparence Display applicator platform, being respectively placed in described Transparence Display applicator platform both sides and the control device communicated to connect between transportable first photographic head and second camera and described first photographic head and second camera, described control device has display screen.
Wherein in an embodiment, described bidimensional image detecting device also includes the support platform supporting described Transparence Display applicator platform.
Wherein in an embodiment, also including and support the crossbeam that platform is connected, described first photographic head and second camera are movably mounted on described crossbeam.
Wherein in an embodiment, described control device is computer or mobile phone.
Above-mentioned bidimensional image detection method, first by overlapping with measured workpiece material object for the two-dimentional drawing that shows on transparent display, then image from positive and negative simultaneously, then the bidimensional image of workpiece and the overlapping figure of two dimension drawing are shown, such that it is able to quickly judge whether workpiece meets the specification according to the difference between two dimension drawing and the bidimensional image of workpiece, just can determine that after being not required to the bidimensional image of workpiece is calculated, thus shortening the detection time, improving work efficiency.
Further, by the contrast of workpiece image with two dimension drawing, can calculate and export the difference value between drawing and the image of measured workpiece rapidly, thus the difference value obtained between measured workpiece and standard size.
Utilize above-mentioned bidimensional image detecting device, above-mentioned bidimensional image detection method can be implemented, it is possible to quickly judge whether workpiece meets the specification according to the difference between two dimension drawing and the bidimensional image of workpiece, and can calculate as required and export difference value.
Accompanying drawing explanation
Fig. 1 is the flow chart of bidimensional image measuring method of the present invention；And
Fig. 2 is the schematic diagram of bidimensional image measurement apparatus of the present invention.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Accompanying drawing gives the preferred embodiment of the present invention.But, the present invention can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, the purpose providing these embodiments is to make the understanding to the disclosure more thorough comprehensively.
It should be noted that be referred to as " being fixed on " another element when element, it can directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly to another element or may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " time, be absent from intermediary element.Term as used herein " vertical ", " level ", "left", "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used in the description of the invention herein is intended merely to the purpose describing specific embodiment, it is not intended that in the restriction present invention.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
It is described in further detail respectively below in conjunction with the accompanying drawing bidimensional image detection method to the present invention and bidimensional image detecting device.
Fig. 1 show the flow chart of the bidimensional image detection method of the present invention, the following detailed description of the implementation process of each step.
S110, measured workpiece is placed on Transparence Display applicator platform.Measured workpiece is placed in transparent display platform, so all measured workpiece can be observed and absorb bidimensional image from the positive and negative both sides of Transparence Display applicator platform.
S120, on described Transparence Display applicator platform, show the two-dimentional drawing of measured workpiece.Available computer, output the two-dimentional drawing at Transparence Display applicator platform display measured workpiece.Two dimension drawing is CAD diagram paper, it is also possible to be the drawing of extended formatting, for instance photo.CAD diagram paper shows the actual size of the two-dimensional silhouette of measured workpiece at Transparence Display applicator platform with 1:1.
S130, make the in kind overlapping of two dimension drawing and measured workpiece.
In this step, make on Transparence Display applicator platform the two-dimentional drawing of display and the in kind overlapping of measured workpiece.Concrete way is: keep measured workpiece motionless, and with any point on measured workpiece or any bar line for benchmark, mobile two dimension drawing makes it overlapping with measured workpiece, even if the figure in display platform aligns and coincides mutually with material object.Two dimension drawing can by computer control, and its position on transparent display can adjust neatly.Therefore, the motionless practice carrying out overlapping of measured workpiece is kept to be easily achieved.It is of course also possible to the two-dimentional drawing position on maintenance transparent display is motionless, and determine that the certain point on two dimension drawing or certain line are benchmark, then utilize motion to drive measured workpiece to remove para-position two dimension drawing.Sum it up, make the in kind overlapping of two dimension drawing and measured workpiece.
In addition, in this step, on Transparence Display applicator platform, bound figure or the bound line of measured workpiece can also be shown with two dimension drawing for benchmark simultaneously, then judge that whether measured workpiece is qualified according to the situation that overlaps of measured workpiece with bound figure or bound line, judge qualified then detection of end, if cannot judge, then enter next step.Bound figure or bound line are to be added on the basis of two dimension drawing, it is also possible to be directly make on original two-dimentional drawing.Therefore, there is no need to the alignment procedures of the material object carrying out measured workpiece again and bound figure or bound line, directly can judge.
After bound figure or bound line show, if measured workpiece is transparent workpiece, then can directly judge by personnel that the two-dimensional silhouette size of measured workpiece both sides is whether within specification.If measured workpiece is opaque workpiece, then it is typically only capable to the two-dimensional silhouette size judging measured workpiece side whether within specification, the instrument that particularly contour shape is more complicated.Because now the two-dimensional silhouette size of measured workpiece both sides itself is it may happen that the situation of overlap, will cause that whether the two-dimensional silhouette size that cannot accurately judge both sides is all qualified.
If it is qualified only cannot to judge whether by bound figure or bound line, then enter next step S140.If measured workpiece is transparent workpiece, it is qualified manually to determine whether but it also may manually do not judge, but also into next step S140.So, without considering the whether transparent of measured workpiece during batch detection, all of workpiece detects according to unified flow process, thus improving work efficiency.
It addition, it is noted that in this step, display bound figure or bound line not necessarily, can be determined according to the workpiece being actually subjected to judgement.Such as, the workpiece of detection is all transparent workpiece, then can show bound figure, adds the artificial link judged.If the workpiece of detection is all opaque and profile is complicated, then can omit display bound figure or bound line.
The bidimensional image of described measured workpiece is absorbed in S140, positive and negative both sides from described Transparence Display applicator platform simultaneously.In this step, it is respectively provided with photographic head in the positive and negative both sides of Transparence Display applicator platform, then two photographic head are utilized to image from both sides, thus obtaining the bidimensional image of measured workpiece both sides, and obtain the two-dimentional drawing of measured workpiece, and the bidimensional image of measured workpiece overlaps with two dimension drawing simultaneously.
S150, display measured workpiece the overlapping figure of bidimensional image and two-dimentional drawing.In this step, show the bidimensional image of measured workpiece and the overlapping figure of two dimension drawing, it is possible to be: on another display screen, show the bidimensional image of measured workpiece and the overlapping figure of two dimension drawing；Can also be: this overlap figure is directly exported and is printed upon on drawing.
S160, whether qualified with the diversity judgement measured workpiece of two dimension drawing according to the bidimensional image of measured workpiece.After overlapping figure is shown, it is possible to by the difference manually judging bidimensional image and two dimension drawing, and then judge that measured workpiece is whether in specification.Artificial judgement is suitable for all workpiece, is particularly suitable for simple overall size.
Different from traditional scheme, in this step, it is not required to the bidimensional image of the measured workpiece obtained is calculated.Judge that measured workpiece is whether in specification, be directly the bidimensional image of measured workpiece is contrasted with two dimension drawing.Therefore, shorten and judge the qualified time, improve work efficiency.
Wherein, for the instrument of simple overall size shape, being made directly drawing contrast, it is qualified that artificial judgement can judge whether rapidly and accurately, naturally it is also possible to is contrasted by software.For the instrument that overall size is complex-shaped, except artificial contrast, it is also possible to contrasted by software, owing to saving the step that the bidimensional image to measured workpiece is calculated, therefore, it is determined that whether qualified quick and precisely.It is to say, in this step, no matter be that artificial contrast judges or software contrast, all the bidimensional image of the measured workpiece obtained need not be calculated.
The bidimensional image of S170, calculating and output measured workpiece and the difference value of two dimension drawing.
In previous step S160, would know that measured workpiece is whether within specification, can meet most demand.But in some cases, it may be necessary to know the concrete difference value between underproof measured workpiece and standard, be beneficial to follow-up improvement.Therefore, in this step, utilize software image to process and calculate, it is possible to obtain the difference value between measured workpiece and drawing.This difference value may be displayed on display screen.Can also be printed upon on drawing when the drawing of the overlapping figure of output simultaneously.If the concrete difference value required no knowledge about between measured workpiece and standard size, then this step can be omitted.
Refer to Fig. 2, the invention allows for a kind of bidimensional image detecting device that can implement above-mentioned detection method, including Transparence Display applicator platform 210, it is respectively placed in Transparence Display applicator platform 210 both sides and the control device 240 communicated to connect between transportable first photographic head 220 and second camera 230 and Transparence Display applicator platform the 210, first photographic head 220 and second camera 230, wherein controls device 240 and there is display screen 242.
Transparence Display applicator platform 210 is arranged on a support platform 250 being made up of marble.Support and platform 250 is fixed with crossbeam 252.First photographic head 220 and second camera 230 are movably mounted on crossbeam 252 respectively.When measured workpiece is imaged by the first photographic head 220 and second camera 230, utilize automation control system to control two photographic head and move, thus ensureing the accuracy to measured workpiece shooting and concordance, it is to avoid a series of errors that manual operation photographic head causes.
Controlling device 240 is the equipment having calculation processing power, for instance can be computer or mobile phone.Display screen 242 is the part controlling device 240, and it, with to control the miscellaneous part of device 240 can be integral type, or can be split type.
The operating procedure utilizing the bidimensional image detecting device detection workpiece of the present invention is summarized as follows.
Measured workpiece 300 is placed on Transparence Display applicator platform 210, then passes through control device 240 on Transparence Display applicator platform 210, show the CAD diagram paper of measured workpiece 300, and CAD diagram paper is carried out overlapping with the material object of measured workpiece 300.Chatting above, CAD diagram paper here can be the two-dimentional drawing of extended formatting.
It follows that control device 240 controls the first photographic head 220 and second camera 230 and moves measured workpiece 300 is imaged at crossbeam 252, and obtain the bidimensional image of measured workpiece 300 both sides.
Then, be graphically displayed at overlapping with CAD diagram paper for the bidimensional image of measured workpiece 300 on display screen 242, manually judge, or by software carry out image procossing and calculate after judge.After image procossing and calculating, it is provided that the information display methods that plurality of optional is selected, for instance: can first display whether qualified information, then show difference value；Qualified information and difference value can also be displayed whether simultaneously.
Utilize the bidimensional image detecting device of the present invention, during detection workpiece, after obtaining the bidimensional image of workpiece, it is not necessary to bidimensional image is calculated, namely can determine that whether workpiece meets the specification by being undertaken contrasting by the two-dimentional drawing of bidimensional image Yu workpiece, simple and fast.Additionally, as required, it is also possible to the difference value between output bidimensional image and two dimension drawing.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a bidimensional image detection method, it is characterised in that comprise the following steps:
Measured workpiece is placed on Transparence Display applicator platform；
Described Transparence Display applicator platform shows the two-dimentional drawing of measured workpiece；
Make the in kind overlapping of two-dimentional drawing on Transparence Display applicator platform and measured workpiece；
Absorb the bidimensional image of described measured workpiece from the positive and negative both sides of described Transparence Display applicator platform simultaneously；
The bidimensional image of display measured workpiece and the overlapping figure of two dimension drawing；
Whether the bidimensional image according to measured workpiece is qualified with the diversity judgement measured workpiece of two dimension drawing.
2. bidimensional image detection method according to claim 1, it is characterised in that still further comprise following steps: calculate and export the bidimensional image of measured workpiece and the difference value of two dimension drawing.
3. bidimensional image detection method according to claim 1, it is characterised in that described two dimension drawing is CAD diagram paper.
4. bidimensional image detection method according to claim 1, it is characterised in that described in make two dimension drawing include with the in kind overlapping step of workpiece: with any point on measured workpiece or any bar line for benchmark, the two-dimentional drawing of movement makes it overlapping with measured workpiece.
5. bidimensional image detection method according to claim 1, it is characterised in that described in make in the in kind overlapping step of two dimension drawing and measured workpiece:
Described Transparence Display applicator platform shows bound figure or the bound line of measured workpiece with two dimension drawing for benchmark；
The situation that overlaps according to described measured workpiece with described bound figure or bound line judges that whether measured workpiece is qualified, it is judged that qualified, terminates or enters next step, if cannot judge, then enters next step.
6. bidimensional image detection method according to claim 1, it is characterised in that the bidimensional image of described display measured workpiece with in the step of the overlapping figure of two dimension drawing, show the overlapping figure of the bidimensional image of measured workpiece and two-dimentional drawing on the display screen.
7. a bidimensional image detecting device, it is characterized in that, including Transparence Display applicator platform, being respectively placed in described Transparence Display applicator platform both sides and the control device communicated to connect between transportable first photographic head and second camera and described first photographic head and second camera, described control device has display screen.
8. bidimensional image detecting device according to claim 7, it is characterised in that described bidimensional image detecting device also includes the support platform supporting described Transparence Display applicator platform.
9. bidimensional image detecting device according to claim 8, it is characterised in that also including and support the crossbeam that platform is connected, described first photographic head and second camera are movably mounted on described crossbeam.
10. bidimensional image detecting device according to claim 7, it is characterised in that described control device is computer or mobile phone.
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| CN201410809457.7A CN105783709B (en) | 2014-12-22 | 2014-12-22 | Bidimensional image detection method and its device |
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