CN113147033A - Infrared three-dimensional object scanning modeling system and scanning method thereof - Google Patents
Infrared three-dimensional object scanning modeling system and scanning method thereof Download PDFInfo
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- CN113147033A CN113147033A CN202110422791.7A CN202110422791A CN113147033A CN 113147033 A CN113147033 A CN 113147033A CN 202110422791 A CN202110422791 A CN 202110422791A CN 113147033 A CN113147033 A CN 113147033A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009877 rendering Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
The invention discloses a three-dimensional object scanning modeling system which comprises a linear laser, a USB camera, an optical filter, a steering engine, a turntable, a microcomputer, a computer and a bracket, wherein the linear laser and the USB camera are fixed on the bracket, the optical filter is attached to a lens of the USB camera, the microcomputer is connected with the steering engine and the linear laser, the microcomputer outputs square wave signals with different duty ratios to the steering engine according to a program, the microcomputer provides power for the linear laser, the USB camera is connected with the computer, the computer is connected with the microcomputer through a network cable, the steering engine is connected with the turntable to form an object placing area, and the bracket and the object placing area have a fixed relative distance. The invention can rotate the object by 360 degrees through the turntable device to realize the omnibearing scanning of the object, further obtain an omnibearing scanning image through the camera, analyze the obtained picture by using a triangulation ranging method to obtain point cloud data used for modeling, and finally input the point cloud data into special software to complete the modeling.
Description
Technical Field
The invention relates to the field of three-dimensional scanning modeling, and belongs to the technical field of scanning devices and modeling software.
Background
With the development of 3D printing technology, the market of 3D scanning devices is also rapidly burning. However, the 3D scanning devices on the market are generally high in precision, expensive, complex to operate, difficult to process subsequent models, and not suitable for common users. A simple 3D scanning device and modeling software can be completely manufactured by a triangular distance measurement method and an illusion 4 engine.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems of low general precision, high price and the like of a 3D scanning device, the invention provides a systematic 3D scanning device and matched modeling software, has low cost and is suitable for common users.
The technical scheme is as follows: the utility model provides a three-dimensional object scanning modeling system, the system includes linear laser instrument, USB camera, light filter, steering wheel, carousel, microcomputer, computer, support, and linear laser instrument and USB camera are fixed on the support, and the light filter pastes on the camera lens of USB camera, and the microcomputer is connected steering wheel and laser instrument, and the microcomputer outputs the square wave signal that the duty cycle is different to the steering wheel according to the procedure, and the microcomputer provides the power to the laser instrument, and the USB camera is connected the computer, and the computer passes through the net twine with the microcomputer and is connected, the carousel is connected to the steering wheel, forms the object and puts the district, the support with the object is put the district and has fixed relative distance.
Further, the steering engine rotates to a specific angle according to the duty cycle of the received square wave signal, the angle range is 0-360 degrees, and the microcomputer is connected with the steering engine and emits the square wave signal.
Furthermore, the support is in a shape of a square, the angle of the support is 150 degrees +/-3 degrees, the USB camera and the laser are carried at two ends of the support, and the turntable is lower than the support, so that the placed objects are opposite to the USB camera.
Further, the laser emits infrared laser light and passes through the turntable rotation center.
Furthermore, the USB camera can receive infrared light and present on a shot picture in white, and the optical filter can filter out light outside an infrared band.
Further, the method comprises:
step A: running a program, wherein a computer is connected with the microcomputer, and the angle of the steering engine returns to zero;
and B: the USB camera takes pictures and stores the pictures in a local computer;
and C: after a picture is shot, the steering engine rotates for 2 degrees;
step D: the microcomputer sends the digital symbol string consisting of 0 and 1 to the computer for judgment through a TCP protocol, and the steps B and C are repeated until the steering engine rotates to 360 degrees;
step E: according to the data signal, waiting for initialization;
step F: controlling a computer and the data signal of the microcomputer to enable the USB camera and the steering engine to work alternately;
step G: obtaining point cloud data used for modeling through the shot image;
step H: and reading the point cloud data, establishing a model, rendering and displaying on a computer screen.
Further, the step G further includes:
step G1: obtaining the angle of the laser scanning line on the object through the rotation times of the steering engine;
step G2: analyzing the gray-scale image to obtain a two-dimensional coordinate of the object to be measured at the angle;
step G3: and converting the two-dimensional coordinates into three-dimensional coordinates by using a triangulation method and storing the three-dimensional coordinates.
Further, the step H includes:
step H1: modeling and rendering by using engine software;
step H2: the displayed model can be rotated, translated and zoomed;
step H3: the material of the displayed model can be changed;
step H4: the file of the model may be exported.
Has the advantages that: the invention can rotate the object by 360 degrees through the turntable device to realize the omnibearing scanning of the object, further obtain an omnibearing scanning image through the camera, analyze the obtained picture by using a triangulation ranging method to obtain point cloud data used for modeling, and finally input the point cloud data into special software to complete the modeling. Compared with the existing technology of processing modeling data by using a 3D scanner with a complex and expensive structure and a computer, the method has the characteristics of rapidness and systematization, and the method uses low-cost accessories to manufacture a simple and systematic 3D scanning device and is provided with used modeling software.
Drawings
FIG. 1 is a schematic structural diagram of a 3D scanning device according to the present invention;
FIG. 2 is a flow chart of a 3D scanning method of the present invention;
FIG. 3 is a flow chart of step G of a 3D scanning method according to the present invention;
fig. 4 is a flowchart of step H in a 3D scanning method according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in figure 1, the 3D scanning device comprises a linear laser 1, a USB camera 2, a light filter, a steering engine, a turntable, a microcomputer, a computer and a bracket, wherein the linear laser 1 and the USB camera 2 are fixed on the bracket, an object placing area 3 comprises the steering engine and the turntable, the bracket and the object placing area 3 have a fixed relative distance, the bracket is in a shape of < "> with an angle of 150 degrees +/-3 degrees, the USB camera 2 and the linear laser 1 are carried at two ends of the bracket, the turntable is lower than the bracket, so that a placed object is opposite to the USB camera 2, the microcomputer is connected with the steering engine and the linear laser 1, the microcomputer outputs square signals with different duty ratios to the steering engine according to a program, the microcomputer provides power for the linear laser 1, the USB camera 2 is connected with the computer, the computer is connected with the microcomputer through a network cable, the light filter is carried on a lens of the USB camera 2 and can filter light outside an infrared band, the line laser 1 is an infrared emitter.
After the program starts, the microcomputer provides power for the laser 1, and simultaneously, the microcomputer outputs square wave signals with different duty ratios to the steering engine according to the program, the steering engine rotates to a certain angle after receiving the signals and drives the turntable to rotate, and the USB camera 2 shoots an object placing area 3. The linear laser 1 emits linear infrared laser, and a formed plane is vertical to a plane where the turntable is located and passes through the rotation center of the turntable. The USB camera 2 can receive infrared light and display the infrared light as white on a photographed image, and the optical filter can filter out light outside the infrared band and is mounted on the lens of the USB camera 2. The computer and the microcomputer send data signals to each other to control the scanning process.
As shown in fig. 2, a 3D scanning method based on the above device of the present invention includes the following steps:
A. running a program, wherein a computer is connected with the microcomputer, and the angle of the steering engine returns to zero;
B. the USB camera takes pictures and stores the pictures in a local computer;
C. after a picture is shot, the steering engine rotates for 2 degrees;
D. the microcomputer sends the digital symbol string consisting of 0 and 1 to the computer for judgment through a TCP protocol, and the steps B and C are repeated until the steering engine rotates to 360 degrees;
E. based on the data signal, initialization is awaited.
F. Controlling a computer and the data signal of the microcomputer to enable the USB camera and the steering engine to work alternately;
G. obtaining point cloud data used for modeling through the shot image;
H. and reading the point cloud data, establishing a model, rendering and displaying on a computer screen.
As shown in fig. 3, step G further includes:
G1. obtaining the angle of the laser scanning line on the object through the rotation times of the steering engine;
G2. analyzing the gray-scale image to obtain a two-dimensional coordinate of the object to be measured at the angle;
G3. and converting the two-dimensional coordinates into three-dimensional coordinates by using a triangulation method and storing the three-dimensional coordinates.
As shown in fig. 4, step H further includes:
H1. modeling and rendering by using engine software;
H2. the displayed model can be rotated, translated and zoomed;
H3. the material of the displayed model can be changed;
H4. the file of the model may be exported.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a three-dimensional object scanning modeling system, its characterized in that, the system includes linear laser instrument (1), USB camera (2), light filter, steering wheel, carousel, microcomputer, computer, support, linear laser instrument (1) and USB camera (2) are fixed on the support, and the light filter pastes on the camera lens of USB camera, and the microcomputer is connected steering wheel and linear laser instrument (1), and the microcomputer outputs the square wave signal that the duty cycle is different to the steering wheel according to the procedure, and the microcomputer provides the power to linear laser instrument (1), and USB camera (2) are connected the computer, and the computer passes through the net twine with the microcomputer and is connected, the carousel is connected to the steering wheel, forms object and puts district (3), the support with object puts district (3) and possess fixed relative distance.
2. The three-dimensional object scanning modeling system of claim 1, wherein the steering engine rotates to a specific angle according to a duty cycle of a received square wave signal, the angle range is 0-360 degrees, and the microcomputer is connected with the steering engine and transmits the square wave signal.
3. The three-dimensional object scanning modeling system according to claim 1, characterized in that the support is "<" shaped, the angle of the support is 150 ° ± 3 °, the linear laser (1) and the USB camera (2) are carried at two ends of the support, and the turntable is lower than the support, so that the placed object can be opposite to the USB camera (2).
4. The three-dimensional object scan modeling system according to claim 3, characterized in that said line laser (1) emits infrared line laser light and passes through said turntable rotation center.
5. The three-dimensional object scan modeling system according to claim 3, wherein said USB camera (2) is capable of receiving infrared light and presenting in white on a captured image, and said filter is capable of filtering out light outside the infrared band.
6. The scanning method of the three-dimensional object scanning modeling system of any of claims 1 to 5, characterized in that the method comprises:
step A: running a program, wherein a computer is connected with the microcomputer, and the angle of the steering engine returns to zero;
and B: the USB camera takes pictures and stores the pictures in a local computer;
and C: after a picture is shot, the steering engine rotates for 2 degrees;
step D: the microcomputer sends the digital symbol string consisting of 0 and 1 to the computer for judgment through a TCP protocol, and the steps B and C are repeated until the steering engine rotates to 360 degrees;
step E: according to the data signal, waiting for initialization;
step F: controlling a computer and the data signal of the microcomputer to enable the USB camera and the steering engine to work alternately;
step G: obtaining point cloud data used for modeling through the shot image;
step H: and reading the point cloud data, establishing a model, rendering and displaying on a computer screen.
7. The scanning method of the three-dimensional object scanning modeling system of claim 6, said step G further comprising:
step G1: obtaining the angle of the laser scanning line on the object through the rotation times of the steering engine;
step G2: analyzing the gray-scale image to obtain a two-dimensional coordinate of the object to be measured at the angle;
step G3: and converting the two-dimensional coordinates into three-dimensional coordinates by using a triangulation method and storing the three-dimensional coordinates.
8. The scanning method of the three-dimensional object scanning modeling system of claim 6, said step H comprising:
step H1: modeling and rendering by using engine software;
step H2: the displayed model can be rotated, translated and zoomed;
step H3: the material of the displayed model can be changed;
step H4: the file of the model may be exported.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110422791.7A CN113147033A (en) | 2021-04-16 | 2021-04-16 | Infrared three-dimensional object scanning modeling system and scanning method thereof |
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| CN202110422791.7A CN113147033A (en) | 2021-04-16 | 2021-04-16 | Infrared three-dimensional object scanning modeling system and scanning method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236076A (en) * | 2013-04-11 | 2013-08-07 | 武汉大学 | Three-dimensional object model reconstruction system and method based on laser images |
| CN203310384U (en) * | 2013-03-25 | 2013-11-27 | 武汉沃博科技有限公司 | Three-dimensional point cloud scan model fitting device based on laser vision |
| CN106969722A (en) * | 2017-02-24 | 2017-07-21 | 深圳市魔眼科技有限公司 | A kind of 3D scanning systems and method |
| CN109781010A (en) * | 2019-01-21 | 2019-05-21 | 珠海博明软件有限公司 | A kind of point cloud data calculation method, the device and system of broad range of data splicing |
-
2021
- 2021-04-16 CN CN202110422791.7A patent/CN113147033A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203310384U (en) * | 2013-03-25 | 2013-11-27 | 武汉沃博科技有限公司 | Three-dimensional point cloud scan model fitting device based on laser vision |
| CN103236076A (en) * | 2013-04-11 | 2013-08-07 | 武汉大学 | Three-dimensional object model reconstruction system and method based on laser images |
| CN106969722A (en) * | 2017-02-24 | 2017-07-21 | 深圳市魔眼科技有限公司 | A kind of 3D scanning systems and method |
| CN109781010A (en) * | 2019-01-21 | 2019-05-21 | 珠海博明软件有限公司 | A kind of point cloud data calculation method, the device and system of broad range of data splicing |
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