CN109060839A - The three-dimensional detection method and device of paper surface quality morphology - Google Patents
The three-dimensional detection method and device of paper surface quality morphology Download PDFInfo
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- CN109060839A CN109060839A CN201810901526.5A CN201810901526A CN109060839A CN 109060839 A CN109060839 A CN 109060839A CN 201810901526 A CN201810901526 A CN 201810901526A CN 109060839 A CN109060839 A CN 109060839A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
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Abstract
The present invention provides a kind of three-dimensional detection method and device of paper surface quality morphology, it is combined by being connected with each other to two dimensional laser scanning, D translation platform and vacuum loading sucker, it is worked together in terms of hardware and software two, obtain the three-dimensional details point cloud data of paper surface form, such as the height and height distributed intelligence of any details micron accuracy rank of paper surface, and three-dimensional modeling and observation characterization to paper surface form stereo data.The detection and characterization for carrying out height, grain distribution and other three-dimensional detailed information to paper surface form are realized, the observation of paper surface quality, characterization and appraisement system are enriched.
Description
Technical field
The present invention relates to note detection technical fields, examine in particular to a kind of solid of paper surface quality morphology
Survey method and device.
Background technique
Paper is the most common printable fabric, the extensive use of paper in the development and different field of industrial technology, to paper
It opens surface three-dimensional form and proposes different requirements.The thus paper surface solid shape feature different just like grid, striped etc..Together
When, different types of paper, cardboard itself have different surface three-dimensional morphological features.The quality testing of paper surface form and
Characterization, is an essential print quality inspection link.
It needs to carry out quality test to paper surface form usually using unit.Generally paper surface is bitten, lacks version, fly
Ink, scumming, set-off, stain, winged insect, mass colour be excessively shallow, mass colour overrich, character are partially or fully bitten, register trouble, fold,
The defects of mechanical failure, knife silk, striped, position can be recorded.But failing, which has detection method that can combine from hardware and software, obtains paper
Open the three-dimensional details point cloud data of configuration of surface.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of solid inspections of paper surface quality morphology
Survey method.
In a first aspect, the embodiment of the invention provides a kind of three-dimensional detection method of paper surface quality morphology, the side
Method includes:
Obtain paper sheet thickness；
The region that user chooses on the paper surface is received, includes point cloud in the region；
On the vertical section of the paper, the paper sheet thickness is divided into more parts, calculates the corresponding region of every part of height
In point cloud point number；
The altitude range that user chooses is received, the point cloud not in the altitude range is rejected；
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface quality morphology
Figure.
Further, according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface
Quality morphology figure, comprising:
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the triangulation network of the paper
Lattice model.
Further, according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the paper
Triangle grid model before, the method also includes:
When cloud point number is excessive, desaturation is carried out to cloud, reduces point cloud point number.
Further, according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface
Quality morphology figure, comprising:
According to the point cloud point number in the corresponding region of every part of height, height statistic histogram is generated.
Further, according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface
After quality morphology figure, the method also includes:
The corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology figure are saved.
Second aspect, it is described the embodiment of the invention also provides a kind of three-dimensional detecting device of paper surface quality morphology
Device includes:
Module is obtained, for obtaining paper sheet thickness；
Regions module, the region chosen on the paper surface for receiving user include a point cloud in the region；
Computing module, for the paper sheet thickness being divided into more parts, calculates every part of height in the vertical section of the paper
Spend the point cloud point number in corresponding region；
Module is rejected, for receiving the altitude range of user's selection, rejects the point cloud not in the altitude range；
Module is born, for according in the altitude range, the corresponding region midpoint cloud point number of every part of height to generate paper
Configuration of surface Quality Map.
Further, the generation module is also used to:
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the triangulation network of the paper
Lattice model.
Further, the generation module is also used to:
According to the point cloud point number in the corresponding region of every part of height, height statistic histogram is generated.
Further, described device further include:
Preserving module, for the corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology figure
It is saved.
The third aspect, the embodiment of the invention provides a kind of computer storage mediums, for being stored as described in second aspect
Device used in computer software instructions.
The embodiment of the present invention bring it is following the utility model has the advantages that
The embodiment of the invention provides a kind of three-dimensional detection method and device of paper surface quality morphology, by two dimension
Laser scanning, D translation platform and vacuum loading sucker, which are connected with each other, to be combined, and is worked together in terms of hardware and software two, is obtained paper
The three-dimensional details point cloud data for opening configuration of surface, such as the height and height distribution letter of any details micron accuracy rank of paper surface
Breath, and the three-dimensional modeling of paper surface form stereo data and observation are characterized.It realizes and height is carried out to paper surface form
The detection and characterization of degree, grain distribution and other three-dimensional detailed information enrich the observation of paper surface quality, characterization and evaluation body
System.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages in specification, claim
Specifically noted structure is achieved and obtained in book and attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of process of the three-dimensional detection method of paper surface quality morphology provided by first embodiment of the invention
Figure；
Fig. 2 is a kind of process of the three-dimensional detection method of paper surface quality morphology provided by second embodiment of the invention
Figure；
Fig. 3 is a kind of knot of the device of the three-dimensional detection of paper surface quality morphology provided by third embodiment of the invention
Structure block diagram.
Specific embodiment
To keep destination, technical solution and the advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to this hair
Bright technical solution is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, without
It is whole embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be with a variety of different
Configuration is to arrange and design.Therefore, below the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit
The range of claimed invention processed, but it is merely representative of selected embodiment of the invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Embodiment one
A kind of flow chart of the three-dimensional detection method of paper surface quality morphology shown in FIG. 1 is participated in, this method is specifically wrapped
Include following steps:
S101. paper sheet thickness is obtained；
Paper surface thickness is obtained using two dimensional laser scanning instrument, D translation platform, vacuum loading sucker etc..
(1) paper surface form stereopsis system is used, paper to be measured is placed on D translation platform, while making three-dimensional
Vacuum loading sucker on translation stage connects vacuum pump, opens vacuum pump to keep the smooth of paper；The system is mainly by two dimension
Laser scanner, D translation platform, vacuum loading sucker, computer and software kit composition.The two dimensional laser scanning instrument
Be set in the X-axis translation arms of D translation platform, the vacuum loading sucker connects D translation platform, the computer and
Two dimensional laser scanning instrument and D translation platform are connected to carry out data acquisition, and the software systems can carry out data acquisition, number
According to transmission control, storage control, data splicing and three-dimensional modeling；
(2) corresponding software is opened on computers and opens relevant device.After translation stage is playbacked, select in software
Specification and precision are scanned, determines the mobile control program of D translation platform and two dimensional laser scanning instrument.Two-dimensional scanning
Instrument works in the X-axis translation arms of D translation platform along D translation platform Y direction, and D translation platform then carries out work along X-axis
Make.It is flat in conjunction with three-dimensional after the paper surface stereo data for obtaining X-axis and Z axis by two dimensional laser scanning instrument by line laser structured light
Moving stage reads in Y-axis paper surface stereo data.It completes stereo data to obtain, is transmitted to computer；Stereo data includes paper thickness
Degree.
Wherein, the two dimensional laser scanning instrument is Keyemce LJV-7200 two dimensional laser scanning instrument, using line laser structured light,
Principle is laser ranging.Laser range finder emits laser to testee by transmitting module, and laser is anti-through testee surface
It penetrates, is received by the receiving module of laser range finder and delivered signal processing module processing, be imaged on object according to light belt inclined
It moves, by the relationship between testee reference planes, picture point, image distance etc., measured object can be measured by triangle geometrical principle
Depth information on body surface face, the final distance for obtaining laser range finder and testee.
The D translation platform is DT-400E accurate program controlled D translation platform, writes corresponding control journey using introduction box
Sequence, the translation stage that connection is loaded with vacuum loading sucker are allowed to mobile in translation stage Y-direction, and control is provided with two dimensional laser scanning instrument
Translation arms it is mobile in translation stage X-direction, it is final to obtain paper surface form stereo data.
The software is mainly grouped as by laser scanning control and processing unit.For the specification of scanning are as follows: A3/B4/16K
(< 300*427mm), A4/B5/8K (< 235*297mm), A5/B6/B7 (< 155*210mm), A7/A8 (< 75*105mm) four
Kind paper size.Scanning line spacing are as follows: 320 μm, 160 μm, 80 μm and 32 μm four kinds of precision.Software records simultaneously show every layer of point institute
The paper height at place and the shared points of the layer.Paper height locating for any point of height statistical chart abscissa surface, ordinate note
Record is in the points of the height, and marks most points that the entire breadth of paper is in same layer.It can record and show simultaneously
Scan paper X-axis, Y-axis, Z axis maximin.Meanwhile section selection can be carried out to paper surface height statistical chart, select one
Duan Gaodu piecewise analysis, finally to the paper surface entirety point cloud information of acquisition and layering point cloud information save, so as to
Modelling operability and evaluation in three-dimensional software.
S102. the region that user chooses on the paper surface is received, includes point cloud in the region；
Region shape selection can be selected by setting-out, connect point selection, all selected and rectangular selection is chosen.In software
In operation respectively can be with are as follows:
● setting-out selection: left mouse button is pressed in the point cloud position for starting selection not to be put, by the profile rail for wanting range of choice
Mark pulls mouse, finally puts down.The point cloud sector domain of the i.e. selection of the footprint that mouse is passed by；
● even point selection: single left button mouse click selects a point, presses reconnaissance clockwise or counterclockwise, and reconnaissance finishes
Click right button.The selection region of point cloud is constituted by reconnaissance line.
● all selections: operated without mouse in cloud display area.
● rectangular selection: left mouse button is clicked twice in different location, as the vertex of rectangle, i.e. selected element cloud sector domain.
S103. on the vertical section of the paper, the paper sheet thickness is divided into more parts, it is corresponding to calculate every part of height
Point cloud point number in region；Wherein, paper sheet thickness is usually divided into 200 parts.
S104. the altitude range that user chooses is received, the point cloud not in the altitude range is rejected；
S105. according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface form
Quality Map.
Embodiment two
A kind of flow chart of the three-dimensional detection of paper surface quality morphology shown in Fig. 2 is participated in, this method is in embodiment one
It realizes, specifically comprises the following steps: on the basis of the three-dimensional detection of the paper surface quality morphology of middle offer
S201. paper sheet thickness is obtained；
S202. the region that user chooses on the paper surface is received, includes point cloud in the region；
S203. on the vertical section of the paper, the paper sheet thickness is divided into more parts, it is corresponding to calculate every part of height
Point cloud point number in region；
S204. the altitude range that user chooses is received, the point cloud not in the altitude range is rejected；
S205. according in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface form
Quality Map.
S206. the corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology figure are protected
It deposits.
Embodiment three
For the three-dimensional detection method of paper surface quality morphology provided by previous embodiment, the embodiment of the present invention is provided
A kind of device of the three-dimensional detection of paper surface quality morphology, a kind of paper surface quality morphology shown in Figure 3 it is vertical
The structural block diagram for the device that physical examination is surveyed, which includes following part:
Module 31 is obtained, for obtaining paper sheet thickness；
Regions module 32, the region chosen on the paper surface for receiving user include a point cloud in the region；
Computing module 33, for the paper sheet thickness being divided into more parts, calculates every part in the vertical section of the paper
Point cloud point number in highly corresponding region；
Module 34 is rejected, for receiving the altitude range of user's selection, rejects the point cloud not in the altitude range；
Module 35 is born, for according in the altitude range, the corresponding region midpoint cloud point number of every part of height to generate paper
Open configuration of surface Quality Map.
Further, the generation module 35 is also used to:
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the triangulation network of the paper
Lattice model.
Further, the generation module 35 is also used to:
According to the point cloud point number in the corresponding region of every part of height, height statistic histogram is generated.
Further, described device further include:
Preserving module 36, for the corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology
Figure is saved.
The embodiment of the invention also provides a kind of computer storage mediums, for being stored as device provided by the above embodiment
Computer software instructions used.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
It should be noted that in embodiment provided by the present invention, it should be understood that disclosed system and method, it can
To realize by another way.The apparatus embodiments described above are merely exemplary, for example, the unit is drawn
Point, only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.It is described to be used as separation unit
The unit that part illustrates may or may not be physically separated, and component shown as a unit can be or can also
Not to be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality
Needs some or all of the units may be selected to achieve the purpose of the solution of this embodiment ground.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of three-dimensional detection method of paper surface quality morphology, which is characterized in that the described method includes:
Obtain paper sheet thickness；
The region that user chooses on the paper surface is received, includes point cloud in the region；
On the vertical section of the paper, the paper sheet thickness is divided into more parts, is calculated in the corresponding region of every part of height
Point cloud point number；
The altitude range that user chooses is received, the point cloud not in the altitude range is rejected；
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates paper surface quality morphology figure.
2. the method according to claim 1, wherein according in the altitude range, the corresponding area of every part of height
Domain midpoint cloud point number generates paper surface quality morphology figure, comprising:
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the triangle gridding mould of the paper
Type.
3. according to the method described in claim 2, it is characterized in that, according in the altitude range, the corresponding area of every part of height
Domain midpoint cloud point number, before the triangle grid model for generating the paper, the method also includes:
When cloud point number is excessive, desaturation is carried out to cloud, reduces point cloud point number.
4. the method according to claim 1, wherein according in the altitude range, the corresponding area of every part of height
Domain midpoint cloud point number generates paper surface quality morphology figure, comprising:
According to the point cloud point number in the corresponding region of every part of height, height statistic histogram is generated.
5. the method according to claim 1, wherein according in the altitude range, the corresponding area of every part of height
Domain midpoint cloud point number, after generating paper surface quality morphology figure, the method also includes:
The corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology figure are saved.
6. a kind of three-dimensional detecting device of paper surface quality morphology, which is characterized in that described device includes:
Module is obtained, for obtaining paper sheet thickness；
Regions module, the region chosen on the paper surface for receiving user include a point cloud in the region；
Computing module, for the paper sheet thickness being divided into more parts, it is right to calculate every part of height in the vertical section of the paper
Point cloud point number in the region answered；
Module is rejected, for receiving the altitude range of user's selection, rejects the point cloud not in the altitude range；
Module is born, for according in the altitude range, the corresponding region midpoint cloud point number of every part of height to generate paper surface
Quality morphology figure.
7. device according to claim 6, which is characterized in that the generation module is also used to:
According in the altitude range, the corresponding region midpoint cloud point number of every part of height generates the triangle gridding mould of the paper
Type.
8. device according to claim 6, which is characterized in that the generation module is also used to:
According to the point cloud point number in the corresponding region of every part of height, height statistic histogram is generated.
9. device according to claim 6, which is characterized in that described device further include:
Preserving module, for being carried out to the corresponding region midpoint cloud point number of every part of height and generation paper surface quality morphology figure
It saves.
10. a kind of computer storage medium, which is characterized in that for being stored as device described in claim 6 to 9 any one
Computer software instructions used.
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| CN201810901526.5A CN109060839B (en) | 2018-08-08 | 2018-08-08 | Three-dimensional detection method and device for paper surface morphology quality |
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| CN201810901526.5A CN109060839B (en) | 2018-08-08 | 2018-08-08 | Three-dimensional detection method and device for paper surface morphology quality |
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Effective date of registration: 20211206 Address after: 528000 room 418-1, 4th floor, block 22, Shunlian Machinery City, No. 18, Xingye 4th Road, Guanglong Industrial Park, Chihua community, Chencun Town, Shunde District, Foshan City, Guangdong Province (residence declaration) Patentee after: Huagong Liyan (Guangdong) new material technology Co.,Ltd. Patentee after: South China University of Technology Address before: 510000 5th floor (North 508), No.2 workshop, Science Park, No.9 Lanyu 4th Street, Guangzhou Economic and Technological Development Zone, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU AIDI GREEN PRINTING TECHNOLOGY Co.,Ltd. Patentee before: South China University of Technology |