CN113375591A - Imaging device based on 3D scanning and correction method thereof - Google Patents
Imaging device based on 3D scanning and correction method thereof Download PDFInfo
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- CN113375591A CN113375591A CN202110620528.9A CN202110620528A CN113375591A CN 113375591 A CN113375591 A CN 113375591A CN 202110620528 A CN202110620528 A CN 202110620528A CN 113375591 A CN113375591 A CN 113375591A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012937 correction Methods 0.000 title abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003702 image correction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses imaging equipment based on 3D scanning and a correction method thereof, and the imaging equipment comprises a box body, a containing module, a sliding module, a fixed seat and a 3D scanning shooting module, wherein the sliding module comprises a sliding seat and a moving seat, the two groups of sliding seats are respectively arranged at two end parts of the upper end surface of the containing module, a U-shaped bracket is arranged on the upper end surface where the sliding seat is arranged, and the two end parts where the moving seat is arranged are respectively connected on the sliding seat in a sliding manner, so that the moving seat can do linear reciprocating motion along the extension direction of the sliding seat; the front end sliding connection that removes the seat place has the fixing base to be provided with the 3D scanning and shoot the module in the below at fixing base place. The correction method adopted by the device divides the image picture into one-by-one cell forms along three directions of the X, Y, Z axes respectively, then the correction is carried out, the assembly is carried out, the measurement of the workpiece with larger size can be realized only by the camera module with smaller size, and the measurement precision of the workpiece with larger size is higher.
Description
Technical Field
The invention belongs to the technical field of scanning and surveying, and particularly relates to imaging equipment based on 3D scanning and a correction method thereof.
Background
In recent years, with the increasing of the shipment of smart phones year by year, the development of camera shooting technology and picture technology applied to the smart phones is also rapidly brought into play. Meanwhile, some application software similar to camera photographing measurement is also continuously popularized, and when some workpieces with higher precision requirements are measured, the measurement accuracy is poorer, and the measurement result is influenced.
A quick photographing measuring instrument is disclosed in publication No. CN209706846U, in which an object to be measured under a photographing device is prevented from being photographed in a stationary state during measurement, and the device is limited to photographing only an article having a small size. However, in the practical process of the measuring device, because the measured workpiece is of a three-dimensional structure, the image in a 2D quick photographing mode can only be displayed in a 2-dimensional state, and the image has certain influence on the depth of the three-dimensional structure, for example, a hole (protrusion) exists on a part, the method can only measure the plane position of the hole (protrusion), the depth (or height) of the hole (protrusion) cannot be measured, and then additional equipment machinery is required to perform depth (or height) of the position on two sides twice, so that the precision and effect of the measuring part during measurement are naturally influenced.
Disclosure of Invention
In view of the shortcomings of the prior art, the present invention is directed to an imaging device based on 3D scanning and a correction method thereof, which solve the above technical problems in the prior art.
The purpose of the invention can be realized by the following technical scheme:
an imaging device based on 3D scanning comprises a box body, a containing module, a sliding module, a fixed seat and a 3D scanning shooting module, wherein the sliding module comprises a sliding seat and a moving seat, and the containing module is arranged above the box body;
the two sliding seats are respectively arranged at two end parts of the upper end surface of the containing module, the upper end surface where the sliding seat is arranged is provided with a U-shaped bracket, and the two end parts where the moving seat is arranged are respectively connected to the sliding seats in a sliding manner, so that the moving seat can do linear reciprocating motion along the extension direction of the sliding seat;
the front end part of the movable seat is connected with a fixed seat in a sliding mode, and a 3D scanning shooting module is arranged below the fixed seat.
Furthermore, the whole containing module is of a rectangular box structure, a light transmitting source is arranged in the rectangular box structure, and the upper surface where the containing module is located is of a plane structure.
Furthermore, a first sliding groove is formed in the upper end face where the sliding seat is located, and an auxiliary sliding block is arranged below the moving seat, so that the auxiliary sliding block is connected into the first sliding groove in a sliding mode, and the moving seat moves linearly and reciprocally along the extending direction of the first sliding groove.
Furthermore, the front end part and the rear end part of the auxiliary sliding block are respectively provided with a limiting bulge extending towards the two end parts.
Furthermore, a second sliding groove is formed in the front end portion where the moving seat is located, and the fixed seat is made to reciprocate left and right along the extending direction of the second sliding groove.
The correction method of the imaging device based on the 3D scanning comprises the following steps:
s1, firstly, starting the equipment to electrify the 3D scanning and shooting module to work;
s2, subsequently determining X, Y, Z the direction of the axis;
s3, operating the 3D scanning shooting module to move along the X-axis direction determined by the moving seat, and moving the shot image to the right along with the increase of the coordinate of the 3D scanning shooting module in the X-axis direction; when the right edge of the image is reached, moving a cell along the Y axis direction of the sliding seat, starting the moving seat again to continue moving in the X axis direction, and circularly reciprocating in sequence until the 3D scanning shooting module carries out image shooting and archiving on the object to be measured according to the set cell;
s4, respectively correcting the images of the image pictures discharged from each cell;
s5, splicing the corrected image pictures of each cell in sequence along the X, Y axis direction, simultaneously comparing the corrected image pictures with a standard measuring plate, and aligning the image pictures of each cell with the cells of the standard measuring plate one by one; and forming a complete measurement image picture and displaying the size of the complete image picture until the measurement is finished.
Further, in S2, the Z-axis direction is determined such that the upper surface on which the containing module is located is Z-0, and the Z value of the object coordinate located above the containing module is increased.
The invention has the beneficial effects that:
1. the correction method adopted by the device divides the image picture into one-by-one cell forms along three directions of the X, Y, Z axes respectively, then the correction is carried out, the assembly is carried out, the measurement of the workpiece with larger size can be realized only by the camera module with smaller size, and the measurement precision of the workpiece with larger size is higher.
2. After X, Y axis coordinates are determined, when a positive value appears in the Z axis direction, the device displays that the measured product piece is convex at the position, the convex position is higher along with the larger numerical value of the positive value, the corresponding position size of the measured product piece is determined according to the numerical difference appearing in the Z axis direction, and the measurement precision is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of an overall structure of a containing module according to an embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of the sliding module according to the embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a sliding module according to an embodiment of the present invention;
FIG. 5 is a schematic side sectional view of a sliding module according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a portion of a side section A of a sliding module according to an embodiment of the present invention;
fig. 7 is a schematic view of a correction flow structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an imaging device based on 3D scanning, which includes a box 1, a containing module 2, a sliding module 3, a fixing seat 4, and a 3D scanning and shooting module 5.
As shown in fig. 2, the containing module 2 is arranged above the box body 1; hold the whole rectangle box structure that is of module 2 to be provided with light source 21 in rectangle box structure, hold the upper surface at module 2 place simultaneously and be planar structure, during the use, open light source 21, when can increase the shooting, the display of its edge corner.
As shown in fig. 3 and 4, the sliding module 3 includes two sets of sliding seats 31 and moving seats 32, the two sets of sliding seats 31 are respectively disposed at two end portions of the upper end surface of the accommodating module 2, a U-shaped bracket 311 is disposed on the upper end surface where the sliding seat 31 is located, and the two end portions where the moving seats 32 are located are respectively connected to the sliding seat 31 in a sliding manner, so that the moving seats 32 perform linear reciprocating motion along the extending direction of the sliding seat 31.
The front end of the movable seat 32 is slidably connected with a fixed seat 4, and a 3D scanning and shooting module 5 is arranged below the fixed seat 4.
As shown in fig. 5 and 6, the first sliding groove 312 is disposed on the upper end surface where the sliding seat 31 is located, and the auxiliary sliding block 321 is disposed below the movable seat 32, so that the auxiliary sliding block 321 is slidably connected in the first sliding groove 312, the movable seat 32 makes a linear reciprocating motion along the extending direction of the first sliding groove 312, and at this time, the movable seat 32 operates more stably, and the problem that the 2D scanning and shooting module 4 blurs images shot due to unstable operation and affects the measurement accuracy of the images can be effectively reduced.
The front end and the rear end of the auxiliary sliding block 321 are respectively provided with a limiting protrusion 3211 extending towards the two ends, and the auxiliary sliding block 321 is made of elastic materials, so that when the auxiliary sliding block 321 of the movable base 32 moves along the first sliding groove 312, the two ends directly collide, and unnecessary vibration damage is caused to the precise parts inside the 2D scanning shooting module 4 arranged on the movable base 32.
The front end of the movable seat 32 is provided with a second sliding slot 322, and the fixed seat 4 reciprocates left and right along the extending direction of the second sliding slot 322.
As shown in fig. 7, the rectification method of the imaging device based on the 3D scan includes the following steps:
s1, firstly, starting the equipment to electrify the 3D scanning shooting module 5 to work, and carrying out shooting preparation work;
s2, subsequently determining X, Y, Z the direction of the axis; (can confirm the point position coordinate of punctuation through manual input parameter mode), for the convenience of equipment operation, can design the horizontal direction that the X axis direction is removal seat 32, and the Y axis direction is the extending direction of slide 31, and the direction of confirming the Z axle is 0 for Z in order to hold the upper surface that module 2 belonged to, and the object coordinate Z value that is located and holds module 2 top increases.
S3, operating the 3D scanning and shooting module 5 to move along the X-axis direction determined by the moving seat 32, and moving the shot image to the right (i.e. the shot image is also one cell size) along with the increase of the coordinates of the 3D scanning and shooting module 5 in the X-axis direction (one cell is moved each time); when the rightmost side of the image is reached, moving a cell along the Y axis direction of the sliding seat 31, starting the moving seat 32 again to continue moving in the X axis direction, and repeating the steps in sequence until the 3D scanning shooting module 5 takes pictures and files the object to be measured according to the set cell;
s4, respectively carrying out image correction on the image picture discharged from each cell (correcting the edge blurring part of the shot image);
s5, splicing the corrected image pictures of each cell in sequence along the X, Y axis direction, simultaneously comparing the corrected image pictures with a standard measuring plate, and aligning the image pictures of each cell with the cells of the standard measuring plate one by one; and forming a complete measurement image picture until the measurement is finished, and displaying the actual size of the complete image picture.
After the X, Y axis coordinate is determined, when the positive value appearing in the Z axis direction shows that the measured product piece is convex at the position, the convex position is higher along with the larger numerical value of the positive value, the corresponding position size of the measured product piece is determined according to the numerical difference appearing in the Z axis direction, the measurement precision is improved, and the measurement accuracy can be realized by one-time measurement.
The whole device divides the image picture into unit grid forms one by one, then corrects the unit grid forms, assembles, only needs the camera module of small size can realize the measurement of great size work piece to can realize that great work piece measuring precision is higher.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. The imaging equipment based on 3D scanning comprises a box body (1), a containing module (2), a sliding module (3), a fixed seat (4) and a 3D scanning shooting module (5), and is characterized in that the containing module (2) is arranged above the box body (1);
the sliding module (3) comprises a sliding seat (31) and a moving seat (32), the sliding seat (31) comprises two groups of sliding seats (31) which are respectively arranged at two end parts of the upper end surface of the containing module (2), a U-shaped support (311) is arranged on the upper end surface where the sliding seat (31) is located, and the two end parts where the moving seat (32) is located are respectively connected to the sliding seat (31) in a sliding manner, so that the moving seat (32) can do linear reciprocating motion along the extending direction of the sliding seat (31);
the front end part where the movable seat (32) is located is connected with a fixed seat (4) in a sliding mode, and a 3D scanning shooting module (5) is arranged below the fixed seat (4).
2. The imaging apparatus based on 3D scanning according to claim 1, characterized in that the containing module (2) is a rectangular box structure as a whole, and a light-transmitting source (21) is arranged in the rectangular box structure, while the upper surface where the containing module (2) is located is a plane structure.
3. The imaging apparatus based on 3D scanning according to claim 1, wherein the upper end face where the sliding base (31) is located is provided with a first sliding groove (312), and the lower side where the moving base (32) is located is provided with a sub-slider (321), such that the sub-slider (321) is slidably connected in the first sliding groove (312), and the moving base (32) linearly reciprocates along the extending direction of the first sliding groove (312).
4. The 3D scanning-based imaging device according to claim 3, wherein the front and rear end portions where the sub slider (321) is located are provided with limit protrusions (3211) protruding toward both end portions, respectively.
5. The imaging apparatus based on 3D scanning according to claim 1, characterized in that a second sliding chute (322) is arranged at the front end part where the moving seat (32) is located, and the fixed seat (4) is made to reciprocate left and right along the extending direction of the second sliding chute (322).
6. The method for 3D scan-based imaging device rectification according to any one of claims 1-5, characterized by the steps of:
s1, firstly, starting the equipment to electrify the 3D scanning shooting module (5) to work;
s2, subsequently determining X, Y, Z the direction of the axis;
s3, operating the 3D scanning and shooting module (5) to move along the X-axis direction determined by the moving seat (32), and moving the shot image to the right along with the increase of the coordinate of the 3D scanning and shooting module (5) in the X-axis direction; when the right edge of the image is reached, moving a cell along the Y axis direction of the sliding seat (31), starting the moving seat (32) again to continue moving in the X axis direction, and sequentially and circularly reciprocating until the 3D scanning shooting module (5) shoots and archives the image of the object to be measured according to the set cell;
s4, respectively correcting the images of the image pictures discharged from each cell;
s5, splicing the corrected image pictures of each cell in sequence along the X, Y axis direction, simultaneously comparing the corrected image pictures with a standard measuring plate, and aligning the image pictures of each cell with the cells of the standard measuring plate one by one; and forming a complete measurement image picture and displaying the size of the complete image picture until the measurement is finished.
7. The method for correcting an imaging apparatus based on 3D scanning according to claim 6, wherein in the step S2, the direction of the Z axis is determined to be Z-0 on the upper surface where the containing module (2) is located, and the Z value of the object coordinate located above the containing module (2) is increased.
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| CN202110620528.9A CN113375591A (en) | 2021-06-03 | 2021-06-03 | Imaging device based on 3D scanning and correction method thereof |
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| CN202110620528.9A CN113375591A (en) | 2021-06-03 | 2021-06-03 | Imaging device based on 3D scanning and correction method thereof |
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Application publication date: 20210910 |