CN109631770A - The measuring device and measuring method of dimension of object - Google Patents
The measuring device and measuring method of dimension of object Download PDFInfo
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- CN109631770A CN109631770A CN201811600977.1A CN201811600977A CN109631770A CN 109631770 A CN109631770 A CN 109631770A CN 201811600977 A CN201811600977 A CN 201811600977A CN 109631770 A CN109631770 A CN 109631770A
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- 238000000034 method Methods 0.000 title abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 238000000691 measurement method Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000003116 impacting effect Effects 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application proposes that a kind of measuring device and measuring method of dimension of object, the measuring device include: connector；Extension assembly is installed on the connector；One or more lasers are installed in the extension assembly, project laser beam to determinand；Image acquisition device is installed on the connector, for acquiring the picture frame of the determinand and laser beam；And processor, it is connect with described image collector, the picture frame for calculation processing described image collector feedback.The measuring device of the application, as work light, avoids environment light from impacting detection, using laser beam to improve detection accuracy.Additionally, the laser for emitting laser beam is installed in the extension assembly, so that described its exit direction of lasers A tunable section, so that laser beam can be easily incident upon on a variety of directions of determinand, can easily measure determinand size.
Description
Technical field
This application involves field of measuring technique more particularly to a kind of measurements of the dimension of object based on computer vision algorithms make
Device and measurement method.
Background technique
Algorithm based on computer vision can measure the size of certain objects in picture.In current industrial production,
Vision-based detection is using more and more extensive.In outline identification and the dimensional measurement of large sized object, it will usually the big visual field of use,
Expensive vision component carries out vision-based detection, needs extraly to increase light source using which, therefore in examinations mistake
Cheng Zhong is easy to be influenced by external environmental light, influences testing result, it is difficult to effectively be promoted in practical applications.
Summary of the invention
In view of this, the application is intended to propose a kind of measuring device and measuring method of dimension of object, in dimension of object
Identification and measurement in, reduce environment light influence, to improve measurement accuracy.
For this purpose, the application proposes a kind of measuring device of dimension of object, comprising:
Connector；
Extension assembly is installed on the connector；
One or more lasers are installed in the extension assembly, project laser beam to determinand；
Image acquisition device is installed on the connector, for acquiring the picture frame of the determinand and laser beam；And
Processor is connect with described image collector, the picture frame for calculation processing described image collector feedback.
Optionally, the extension assembly includes:
At least one crossbeam is installed on the connector；And
Universal connecting base, the laser are installed on one end of the universal connecting base, the universal connecting base it is another
End is installed on the end of the crossbeam.
Optionally, there are two crossbeams for the extension assembly tool；Two crossbeams are respectively arranged at the two of the connector
Side is separately installed with the universal connecting base on four ends of two crossbeams.
Optionally, the universal connecting base is movably arranged along the length direction of the crossbeam.
Optionally, one end of the connector extends to form mounting portion far from the extension assembly, and the mounting portion is used for
Described image collector is installed.
Optionally, described image collector is industrial camera.
Optionally, the processor includes display device, and the display device is for showing described image frame.
Additionally, the application is it is also proposed that a kind of measurement method of dimension of object, comprising the following steps:
Determinand is placed in the lower section of image acquisition device by S1；
S2, to the first boundary of determinand and the second boundary projection laser beam after, described image collector take pictures acquisition to
Survey the picture frame of object and the laser beam；
S3, repeat the above steps S2, obtains at least two field pictures frame；
The intersection point on the first boundary and laser beam formation at least two field pictures frame is fitted to first straight line by S4；
The intersection point of the second boundary and laser beam formation at least two field pictures frame is fitted to second straight line；
S5, detect the distance between the first straight line and the second straight line be measure determinand the first boundary and
The distance between the second boundary.
Optionally, described image collector is industrial camera.
Optionally, the laser beam is one of visible laser beam, infrared laser beam or UV laser beam.
In technical scheme, laser beam of the described image collector by determinand and thereon carries out acquisition acquisition of taking pictures
Picture frame, and picture frame is fed back into the processor.Wherein, the measuring device of the application is using laser beam as work light
Source avoids environment light from impacting detection, to improve detection accuracy.Additionally, the laser for emitting laser beam is installed on institute
It states in extension assembly, so that described its exit direction of lasers A tunable section, so that laser beam can easily be incident upon determinand
A variety of directions on, can easily measure determinand size.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, the knot that can also be shown according to these attached drawings
Structure obtains other attached drawings.
Fig. 1 is a kind of schematic perspective view of the measuring device of dimension of object provided by the embodiments of the present application；
Fig. 2 is a kind of flow diagram of the measurement method of dimension of object provided by the embodiments of the present application；
Fig. 3 is the picture frame schematic diagram of a kind of determinand and laser beam provided by the embodiments of the present application；
Fig. 4 is the picture frame schematic diagram of another determinand and laser beam provided by the embodiments of the present application；
Fig. 5 is the picture frame schematic diagram of another determinand and laser beam provided by the embodiments of the present application；
Fig. 6 is the picture frame schematic diagram of another determinand and laser beam provided by the embodiments of the present application.
Wherein, main appended drawing reference illustrates:
| Measuring device 100 | Connector 10 | Mounting portion 11 |
| Extension assembly 20 | Crossbeam 21 | Universal connecting base 22 |
| First connection section 221 | Second connection section 222 | Pedestal 223 |
| Laser 220 | Laser beam 2201 | Image acquisition device 30 |
| Scanning range 31 | Determinand 200 | First boundary 201 |
| The second boundary 202 | Third boundary 203 |
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall in the protection scope of this application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.It, should if relating to the description of " first ", " second " etc. in the embodiment of the present application
The description of " first ", " second " etc. is used for description purposes only, and is not understood to indicate or imply its relative importance or hidden
Containing the quantity for indicating indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or impliedly
Including at least one this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ability
Based on domain those of ordinary skill can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not this application claims protection scope within.
In order to make those skilled in the art more fully understand technical scheme, below in conjunction with attached drawing, to the application
Technical solution in embodiment is clearly and completely described.
Referring to Fig. 1, wherein an embodiment proposes the measuring device 100 of dimension of object a kind of, the measuring device to the application
100 include connector 10, extension assembly 20, image acquisition device 30, processor and one or more lasers 220.It is described to stretch
Exhibition component 20 is installed on the connector 10.One or more of lasers 220 are installed in the extension assembly 20, institute
Rotatable setting on the basis of extension assembly 20 of laser 220 is stated, so that the exit direction of the laser 220
Adjustable, laser beam 2201 has a variety of projecting directions on determinand 200.Described image collector 30 is installed on the connector
On 10, for acquiring the picture frame of determinand 200 Yu laser beam 2201.The processor is electrically connected with described image collector 30
It connects, the picture frame fed back for calculation processing described image collector 30.Wherein, the processor intends multiple image frame
The intersection point of the boundary of determinand 200 and laser beam 2201 is fitted to boundary straight line by conjunction processing, and detect between boundary straight line away from
From to calculate the size of determinand 200.
In technical scheme, laser beam 2201 of the described image collector 30 by determinand 200 and thereon is carried out
Acquisition of taking pictures obtains picture frame, and picture frame is fed back to the processor.Wherein, the measuring device 100 uses laser beam
2201 are used as work light, and the laser 220 of transmitting laser beam 2201 is installed in the extension assembly 20, so that the laser
Its exit direction is adjusted in device 220, so that laser beam 2201 can be easily incident upon on a variety of directions of determinand 200, with
200 size of determinand can easily be measured.
In the present embodiment, such as Fig. 1, the measuring device 100 is for measuring the size of determinand 200.The survey
The connector 10 of amount device 100 is used to the parts thereof of the measuring device 100 installation is fixed.For example, the connection
Body 10 is for being fixedly mounted the extension assembly 20 and image acquisition device 30, and further, the connector 10 is also used to institute
It states measuring device 100 to be installed in other equipment, to enhance the service performance of the measuring device 100, for example, by described
The measuring device 100 is fixedly connected in mobile device by connector 10, so as to by the measuring device 100 progress can
Mobile setting, to be adapted to various sizes of determinand 200.
In the present embodiment, the extension assembly 20 is installed on the connector 10, and it is described sharp to be used to carry installation
Light device 220.The laser 220 is based on the extension assembly 20, can adjust the laser 220 and emit laser beam 2201
Direction, so that laser beam 2201 can have the projection line of a variety of localities on determinand 200.
Such as Fig. 1, the extension assembly 20 includes universal connecting base 22 and at least one crossbeam 21.The crossbeam 21 is installed
In on connector 10, the both ends of the crossbeam 21 are for installing the universal connecting base 22.Optionally, in the crossbeam 21
Portion is fixedly installed on the connector 10.Specifically, one end of the universal connecting base 22 and the end of the crossbeam 21 connect
It connects, the other end is connect with the laser 220.In the present embodiment, the universal connecting base 22 include first connection section 221,
Second connection section 222 and pedestal 223.One end of the first connection section 221 is fixedly connected with the laser 220, the other end
It connect section 222 with described second to be rotatably connected, the free end of the second connection section 222 rotatably connects with the pedestal 223
It connects.Wherein, the pedestal 223 is installed on the end of the crossbeam 21.Optionally, one end of the first connection section 221 has
Spherical connecting pin, one end of the second connection section 222 have an accommodating cavity for accommodating spherical connecting pin, the spherical shape connecting pin with
The accommodating cavity cooperation so that the first connection section 221 connect section 222 with described second and is rotatably connected, and then makes
It is described first connection section 221 can relatively it is described second connection section 222 multi-directional rotations so that the laser 220
It is conveniently adjusted the direction of its shoot laser beam 2201.
Further, in order to enable the laser 220 can more be readily adjusted the direction of its shoot laser beam 2201,
22 removable installation of universal connecting base is on the crossbeam 21, and specifically, 223 removable installation of pedestal is in the cross
On beam 21, the pedestal 223 can be movably arranged along the crossbeam 21.The laser 220 is in the universal connecting base 22
It under drive, is moved along 21 length direction of crossbeam, and section 222 is connect with described second by the first connection section 221
Between be rotatably connected, being rotatably connected between the second connection section 222 and the pedestal 223, so as to convenient
Laser beam 2201 is incident upon on determinand 200 by ground.It is to be understood that the first connection section 221 is connect with described second
Being rotatably connected with certain frictional force between section 222, so that when firmly rotating the first connection section 221, it is described
First connection section 221 can save 222 rotations relative to second connection, and when not rotating firmly, then first connection saves 221
Section 222, which is connect, with described second keeps relatively fixed.Similarly, between the second connection section 222 and the pedestal 223
It is rotatably connected with certain frictional force.
In the present embodiment, for the tool of extension assembly 20 there are two crossbeam 21, two crossbeams 21 are respectively arranged at institute
The two sides of connector 10 are stated, are separately installed with the universal connecting base 22 on four ends of two crossbeams 21, often
One laser 220 is installed on one universal connecting base 22.
In technical scheme, there are two the crossbeam 21, the ends of the crossbeam 21 for setting on the connector 10
The laser 220 is installed in portion, to extend the installation site of the laser 220, enables the measuring device 100
Enough it is adapted to the measurement of the determinand 200 of larger size.Wherein, determinand 200 is placed in the lower section of described image collector 30,
By adjusting the exit direction of four lasers 220, so that laser beam 2201 has a variety of projection sides on determinand 200
To.
In the present embodiment, described image collector 30 is installed on the connector 10, for obtain determinand 200 with
The picture frame of laser beam 2201.One end of the connector 10 extends to form mounting portion 11 far from the extension assembly 20, described
Mounting portion 11 is for installing described image collector 30.The middle part of the connector 10 can be used for erecting the installation measuring device
100, to promote the service performance of the measuring device 100.
Further, in the present embodiment, the processor further includes display device, and the display device is for showing institute
Picture frame is stated, so that user can watch the picture frame of the acquisition of described image collector 30 at any time.It is to be understood that institute
Stating processor further includes the operation equipment for exporting or exporting, to facilitate user that can carry out operation processing to picture frame.
Specifically, based on measuring device 100 set forth above, the embodiment of the present application is it is also proposed that a kind of measurement of dimension of object
Method.Referring to Figure 2 together, the embodiment of the present application proposes a kind of measurement method of dimension of object, which includes:
Determinand 200 is placed in the lower section of image acquisition device 30 by step S1.Determinand 200 is placed in described image
The lower section of collector 30, the scanning range 31 of described image collector 30 can cover the whole or determinand 200 of determinand 200
Part.When the scanning range 31 of described image collector 30 covers the part-structure of determinand 200, mobile described image acquisition
Device 30, so as to obtain the picture frame of 200 profile and border of determinand.Optionally, described image collector 30 is industrial camera,
The industrial camera can be used based on CCD (Charge Coupled Device) or CMOS (Complementary Metal
Oxide Semiconductor) chip camera.
Step S2, after projecting laser beam 2201 to the first boundary 201 of determinand 200 and the second boundary 202, described image
Collector 30, which is taken pictures, obtains the picture frame of determinand 200 Yu the laser beam 2201.
Referring to Fig. 3, determinand 200 include the first boundary 201 and the second boundary 202, first boundary 201 with it is described
The second boundary 202 be determinand 200 profile and border, thus the distance between the first boundary 201 and the second boundary 202 as to
Survey the size of object 200.Further, delimiting at certain positions of determinand 200 is third boundary 203, passes through measurement the
The distance between one boundary 201 and third boundary 203, it will be able to the distance between certain positions in determinand 200 are measured,
For example, the distance between the boundary of 200 bevelling of determinand and determinand 200.
Step S3, repeat the above steps S2, obtains at least two field pictures frame, optionally, repeat the above steps S2, and obtains
4 frame picture frames.
The first boundary 201 at least two field pictures frame is fitted by step S4 with the intersection point that the laser beam 2201 is formed
For first straight line, by least two field pictures frame the second boundary 202 and the intersection point that is formed of the laser beam 2201 be fitted to the
Two straight lines.
The first boundary 201 and institute when obtaining four frame picture frames by described image collector 30, in four frame picture frames
It states laser beam 2201 and forms four intersection points, which is fitted to by the first straight line by the processor.It can manage
Solution ground is to obtain more above-mentioned picture frames, and so as to obtain more intersection points, and then the first straight line fitted is properer
In the first boundary 201 of determinand 200.Ground can be managed, when obtaining four frame picture frames by described image collector 30, four frame figures
As the second boundary 202 and the laser beam 2,201 four intersection points of formation in frame, four intersection points are intended by the processor
It is combined into the second straight line, obtains more above-mentioned picture frames, so that the second straight line fitted is properer in determinand 200
The second boundary 202.
Step S5, detecting the distance between the first straight line and the second straight line is measure determinand 200 the
The distance between one boundary 201 and the second boundary 202.Optionally, the processor can pass through the ratio of image and image
Size can calculate the distance between the first straight line and the second straight line.
It is to be understood that the laser beam 2201 that the laser 220 emits is incident upon on determinand 200, in the figure
As collector 30 exposure under, formed picture frame.Optionally, the laser beam 2201 is visible laser beam, such as feux rouges swashs
Light beam, blue laser beam etc..In further embodiments, the laser beam 2201 is infrared laser beam or UV laser beam.
Fig. 3 to 6 is please referred to, based on the measurement method of above-mentioned dimension of object, a specific implementation process presented below:
Determinand 200 is placed in the lower section of described image collector 30, the first boundary 201 and second of determinand 200
Boundary 202 is in the scanning range 31 of described image collector 30.
Such as Fig. 3, the exit direction of laser 220 is adjusted, so that the first boundary 201 of laser beam 2201 and determinand 200,
The second boundary 202, third boundary 203 are intersected.The exposure of described image collector 30 acquisition determinand 200 and the laser beam 2201
Picture frame obtains the first picture frame, wherein the laser beam 2201 and the first boundary 201, the second boundary 202, third boundary 203
It is respectively formed intersection point A1、A2、A3。
Such as Fig. 4, the exit direction of laser 220 is adjusted, so that the first boundary 201 of laser beam 2201 and determinand 200,
The second boundary 202, third boundary 203 are intersected.The exposure of described image collector 30 acquisition determinand 200 and the laser beam 2201
Picture frame obtains the second picture frame, wherein the laser beam 2201 and the first boundary 201, the second boundary 202, third boundary 203
It is respectively formed intersection points B1、B2、B3。
Such as Fig. 5, the exit direction of laser 220 is adjusted, so that the first boundary 201 of laser beam 2201 and determinand 200,
The second boundary 202, third boundary 203 are intersected.The exposure of described image collector 30 acquisition determinand 200 and the laser beam 2201
Picture frame obtains third picture frame, wherein the laser beam 2201 and the first boundary 201, the second boundary 202, third boundary 203
It is respectively formed intersection point C1、C2、C3。
Such as Fig. 6, the exit direction of laser 220 is adjusted, so that the first boundary 201 of laser beam 2201 and determinand 200,
The second boundary 202, third boundary 203 are intersected.The exposure of described image collector 30 acquisition determinand 200 and the laser beam 2201
Picture frame obtains the 4th picture frame, wherein the laser beam 2201 and the first boundary 201, the second boundary 202, third boundary 203
It is respectively formed intersection point D1、D2、D3。
By above-mentioned first picture frame, the second picture frame, third picture frame and the 4th picture frame process of fitting treatment, and will be therein
Intersection point A1、B1、C1、D1It is fitted to first straight line, intersection point A2、B2、C2、D2It is fitted to second straight line, intersection point A3、B3、C3、D3It is fitted to
Third straight line, then detect the distance between first straight line and second straight line be measure 200 boundary dimensions of determinand between away from
From detecting the distance between first straight line and third straight line are to measure the distance between 200 boundary of determinand and bevel edge.
To sum up, technical scheme includes but is not limited to following advantages:
Laser beam 2201 of the described image collector 30 by determinand 200 and thereon carries out acquisition acquisition picture frame of taking pictures,
And picture frame is fed back into the processor.Wherein, the measuring device 100 is used as work light using laser beam 2201, keeps away
Exempt from environment light to impact detection, to improve detection accuracy.The laser 220 of transmitting laser beam 2201 is installed on the stretching, extension
On component 20 so that its exit direction is adjusted in the laser 220, thus laser beam 2201 can easily be incident upon it is to be measured
On a variety of directions of object 200, can easily measure 200 size of determinand.
Above-described embodiment is the application exemplary embodiment, but embodiments herein is not by the limit of above-described embodiment
System, it is other any without departing from spirit herein essence and made changes, modifications, substitutions, combinations, simplifications under principle,
It should be equivalent substitute mode, be included within the protection scope of the application.
Claims (10)
1. a kind of measuring device of dimension of object characterized by comprising
Connector；
Extension assembly is installed on the connector；
One or more lasers are installed in the extension assembly, project laser beam to determinand；
Image acquisition device is installed on the connector, for acquiring the picture frame of the determinand and laser beam；And
Processor is connect with described image collector, the picture frame for calculation processing described image collector feedback.
2. measuring device according to claim 1, which is characterized in that the extension assembly includes:
At least one crossbeam is installed on the connector；And
Universal connecting base, the laser are installed on one end of the universal connecting base, the other end peace of the universal connecting base
On end loaded on the crossbeam.
3. measuring device according to claim 2, which is characterized in that there are two crossbeams for the extension assembly tool；Two institutes
The two sides that crossbeam is respectively arranged at the connector are stated, are separately installed with described ten thousand on four ends of two crossbeams
To attachment base.
4. measuring device according to claim 2 or 3, which is characterized in that length of the universal connecting base along the crossbeam
Degree direction is movably arranged.
5. measuring device according to claim 1, which is characterized in that one end of the connector is far from the extension assembly
Mounting portion is extended to form, the mounting portion is for installing described image collector.
6. measuring device according to claim 1, which is characterized in that described image collector is industrial camera.
7. measuring device according to claim 1, which is characterized in that the processor includes display device, the display
Device is for showing described image frame.
8. a kind of measurement method of dimension of object, which comprises the following steps:
Determinand is placed in the lower section of image acquisition device by S1；
S2, to after the first boundary of determinand and the second boundary projection laser beam, described image collector, which is taken pictures, obtains determinand
With the picture frame of the laser beam；
S3, repeat the above steps S2, obtains at least two field pictures frame；
The intersection point on the first boundary and laser beam formation at least two field pictures frame is fitted to first straight line by S4；It is near
The intersection point that the second boundary and the laser beam in few two field pictures frame are formed is fitted to second straight line；
S5, detecting the distance between the first straight line and the second straight line is to measure the first boundary and second of determinand
The distance between boundary.
9. measurement method according to claim 8, which is characterized in that described image collector is industrial camera.
10. measurement method according to claim 8, which is characterized in that the laser beam be visible laser beam, it is infrared swash
One of light beam or UV laser beam.
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| CN201811600977.1A CN109631770A (en) | 2018-12-26 | 2018-12-26 | The measuring device and measuring method of dimension of object |
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| CN201811600977.1A CN109631770A (en) | 2018-12-26 | 2018-12-26 | The measuring device and measuring method of dimension of object |
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