CN113203363A - Bamboo tube measuring method and measuring device based on digital image processing technology - Google Patents
Bamboo tube measuring method and measuring device based on digital image processing technology Download PDFInfo
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- CN113203363A CN113203363A CN202110375660.8A CN202110375660A CN113203363A CN 113203363 A CN113203363 A CN 113203363A CN 202110375660 A CN202110375660 A CN 202110375660A CN 113203363 A CN113203363 A CN 113203363A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 260
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 260
- 241001330002 Bambuseae Species 0.000 title claims abstract description 260
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 260
- 239000011425 bamboo Substances 0.000 title claims abstract description 260
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000284 extract Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 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
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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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
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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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
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
Abstract
The invention relates to the technical field of bamboo product production, in particular to a bamboo tube measuring method and a bamboo tube measuring device based on a digital image processing technology, wherein a first image is shot by a first camera to obtain the outer contour of a bamboo tube body; the computer can calculate the circle center coordinate of the bamboo tube body through the outer contour information of the first image, then the PLC or other control devices control the moving mechanism to move the second camera to the circle center coordinate of the bamboo tube body, the second camera is used for shooting the axial direction of the bamboo tube to obtain a second image so as to obtain the clear inner contour of the bamboo tube body, and the outer contour information and the inner contour information of the bamboo tube body can be synthesized to accurately calculate the diameter and wall thickness data of the bamboo tube.
Description
Technical Field
The invention relates to the technical field of bamboo product production, in particular to a bamboo tube measuring method and device based on a digital image processing technology.
Background
Chinese patent application publication No. CN102269571A discloses a method and apparatus for measuring bamboo tube diameter based on digital image processing technology, which uses an industrial camera perpendicular to bamboo tube cross section to collect bamboo tube cross section images, automatically processes and measures through designed digital image processing program, and increases sampling times to improve measurement accuracy; the non-contact method for measuring the diameter of the bamboo tube has the characteristics of high speed and high efficiency.
However, the above patent is only used for measuring the diameter of the bamboo tube, and does not measure the wall thickness of the bamboo tube, because the technical solution of the above patent only uses one industrial camera to obtain the image of a single position of the cross section of the bamboo tube from a single position, and in order to measure the diameter of the bamboo tube, the industrial camera must be far away from the cross section of the bamboo tube to obtain the whole outer contour of the cross section of the bamboo tube, but the inner contour image of the bamboo tube is not clear, so the wall thickness of the bamboo tube cannot be accurately calculated from the image.
Therefore, how to accurately and efficiently measure the wall thickness and the diameter of the bamboo tube is a technical problem which needs to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to accurately and efficiently measure the wall thickness and the diameter of the bamboo tube.
In order to solve the technical problems, the invention adopts the technical scheme that:
a bamboo tube measuring method based on a digital image processing technology comprises the following steps:
shooting the end face of the bamboo tube twice from far to near to obtain an outer contour image of the end face of the bamboo tube and an inner contour image of the end face of the bamboo tube in sequence; and identifying and extracting each pixel point of the outer contour image of the end face of the bamboo tube and the inner contour image of the end face of the bamboo tube, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point.
The bamboo tube measuring method based on the digital image processing technology specifically comprises the following steps:
step 1: shooting the end face of the bamboo tube by a first camera to obtain an outer contour image of the end face of the bamboo tube;
step 2: the computer identifies and extracts each pixel point of the bamboo tube end face outer contour image, calculates the center position of the outer contour image according to each pixel point, and calculates the position of the axis of the bamboo tube;
and step 3: the second camera moves to the position where the axis of the bamboo tube is located, the end face of the bamboo tube is shot, and an inner contour image of the end face of the bamboo tube is obtained;
and 4, step 4: and identifying and extracting each pixel point in the image of the inner contour of the end face of the bamboo tube by the computer, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point of the inner contour and each pixel point of the outer contour.
In the bamboo tube measuring method based on the digital image processing technology, the step 4 is specifically as follows: the computer identifies and extracts all pixel points in the bamboo tube inner contour image, and the diameter and the wall thickness of the bamboo tube are calculated according to all the pixel points in the bamboo tube inner contour, all the pixel points in the outer contour, the distance between the first camera and the end face of the bamboo tube when the first camera obtains the bamboo tube outer contour image, and the distance between the second camera and the end face of the bamboo tube when the second camera obtains the bamboo tube inner contour image.
The invention also relates to a bamboo tube measuring device based on the digital image processing technology, which comprises a first camera, a second camera, a computer, a moving mechanism and a bamboo tube positioning device, wherein the second camera is connected with the moving mechanism and is positioned between the first camera and the bamboo tube positioning device, the axial direction of the bamboo tube positioned on the bamboo tube positioning device is parallel to the shooting direction of the first camera and the shooting direction of the second camera, and the computer is electrically connected with the first camera and the second camera.
The invention has the beneficial effects that: the invention provides a bamboo tube measuring method based on a digital image processing technology, which comprises the steps of shooting images of end faces of two bamboo tubes from original to close, obtaining a clear outer contour image of the end face of the bamboo tube from a longer distance by a first image, and obtaining a clear inner contour image of the end face of the bamboo tube from a shorter distance by a second image.
Drawings
Fig. 1 is a schematic structural diagram of a bamboo tube measuring device based on digital image processing technology according to an embodiment of the present invention;
FIG. 2 is a front view of a bamboo tube measuring device based on digital image processing technology according to an embodiment of the present invention;
FIG. 3 is a top view of a bamboo tube measuring device based on digital image processing technology according to an embodiment of the present invention;
description of reference numerals:
1. a first camera; 2. a second camera; 3. a cross linear sliding table; 4. a bamboo tube positioning device; 41. a conveyor belt; 42. a movable positioning plate; 5. a first light source; 6. a second light source; 7. a bamboo tube body.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, the present invention relates to a bamboo tube measuring method based on digital image processing technology, which includes the following steps:
shooting the end face of the bamboo tube twice from far to near to obtain an outer contour image of the end face of the bamboo tube and an inner contour image of the end face of the bamboo tube in sequence; and identifying and extracting each pixel point of the outer contour image of the end face of the bamboo tube and the inner contour image of the end face of the bamboo tube, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point.
According to the bamboo tube measuring method based on the digital image processing technology, images of the end faces of two bamboo tubes are shot from the original to the close position, the first image can obtain a clear outer contour image of the end face of the bamboo tube from a longer distance, the second image can obtain a clear inner contour image of the end face of the bamboo tube from a shorter distance, when the two images are shot by a camera, the distance between the camera and the end face of the bamboo tube is fixed, the outer diameter and the inner diameter of the bamboo tube can be calculated according to the pixel point positions of the two images and the corresponding distance, and therefore the diameter and the wall thickness of the bamboo tube can be accurately calculated.
The bamboo tube measuring method based on the digital image processing technology specifically comprises the following steps:
step 1: shooting the end face of the bamboo tube by a first camera to obtain an outer contour image of the end face of the bamboo tube;
step 2: the computer identifies and extracts each pixel point of the bamboo tube end face outer contour image, calculates the center position of the outer contour image according to each pixel point, and calculates the position of the axis of the bamboo tube;
and step 3: the second camera moves to the position where the axis of the bamboo tube is located, the end face of the bamboo tube is shot, and an inner contour image of the end face of the bamboo tube is obtained;
and 4, step 4: and identifying and extracting each pixel point in the image of the inner contour of the end face of the bamboo tube by the computer, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point of the inner contour and each pixel point of the outer contour.
In the bamboo tube measuring method based on the digital image processing technology, the step 4 is specifically as follows: the computer identifies and extracts all pixel points in the bamboo tube inner contour image, and the diameter and the wall thickness of the bamboo tube are calculated according to all the pixel points in the bamboo tube inner contour, all the pixel points in the outer contour, the distance between the first camera and the end face of the bamboo tube when the first camera obtains the bamboo tube outer contour image, and the distance between the second camera and the end face of the bamboo tube when the second camera obtains the bamboo tube inner contour image.
According to the description, in the bamboo tube measuring method based on the digital image processing technology, the first camera can be controlled by the PLC to shoot the outer contour image of the end face of the bamboo tube, the computer identifies and extracts all pixel points of the outer contour image of the end face of the bamboo tube, the central position of the outer contour image is calculated according to all the pixel points, and the position of the axis of the bamboo tube is calculated; and controlling a second camera to move to the position of the axis of the bamboo tube by a PLC (programmable logic controller), shooting the end face of the bamboo tube to obtain an inner contour image of the end face of the bamboo tube, finally identifying and extracting each pixel point of the inner contour of the bamboo tube in the image by a computer, and calculating the diameter and the wall thickness of the bamboo tube according to the distance between each pixel point of the inner contour of the bamboo tube and the end face of the bamboo tube when the outer contour image of the bamboo tube is obtained by the first camera, each pixel point of the outer contour and the first pixel point of the inner contour of the bamboo tube, and the distance between each pixel point of the inner contour of the bamboo tube and the end face of the bamboo tube when the inner contour image of the bamboo tube is obtained by the second camera.
The invention also relates to a bamboo tube measuring device based on the digital image processing technology, which comprises a first camera 1, a second camera 2, a computer, a moving mechanism and a bamboo tube positioning device 4, wherein the second camera 2 is connected with the moving mechanism, the second camera 2 is positioned between the first camera 1 and the bamboo tube positioning device 4, the axial direction of the bamboo tube positioned on the bamboo tube positioning device 4 is parallel to the shooting direction of the first camera 1 and the shooting direction of the second camera 2, and the computer is electrically connected with the first camera 1 and the second camera 2.
In the bamboo tube measuring device based on the digital image processing technology, the images of the end faces of the two bamboo tubes are shot from the original to the close position through the two cameras, the first camera shoots the first image, the clear outer contour image of the end face of the bamboo tube can be obtained from a far distance, the computer calculates the center position of the bamboo tube and the position of the axis of the bamboo tube through the outer contour image of the end face of the bamboo tube, then the second camera shoots the second image, the clear inner contour image of the end face of the bamboo tube can be obtained from a near distance, and because the first camera and the second camera respectively shoot the images, the distances between the two cameras and the end face of the bamboo tube are fixed, the outer diameter and the inner diameter of the bamboo tube can be calculated according to the pixel point positions of the two images and the corresponding distances, and the diameter and the wall thickness of the bamboo tube can be accurately calculated.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, the moving direction of the moving mechanism is perpendicular to the shooting direction of the second camera 2.
As can be seen from the above description, the shooting direction of the second camera 2 is the axial direction of the bamboo tube, and since each measurement needs to be performed to ensure the accuracy of the measured data, the axial distances between the first camera 1, the second camera 2 and the bamboo tube are all kept fixed, and the moving direction of the second camera 2 is limited to the direction perpendicular to the axial direction of the bamboo tube, the second camera 2 can move to avoid the shooting of the first camera 1 on the outer contour of the bamboo tube, and the axial distance between the second camera 2 and the bamboo tube is kept unchanged.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, the moving mechanism is a cross linear sliding table 3.
From the above description, it can be seen that the second camera 2 can move along the x-axis and z-axis directions in the plane perpendicular to the bamboo tube axis direction by arranging the cross linear sliding table 3 on the base.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, the bamboo tube positioning device 4 comprises a conveyer belt 41 and a movable positioning plate 42;
the conveying direction of the conveying belt 41 is opposite to the shooting direction of the first camera 1, and the movable positioning plate 42 is positioned at the tail end of the conveying belt 41.
As can be seen from the above description, the bamboo tube to be measured can be conveyed to a specific position by the conveyor belt 41, please refer to fig. 1-3, the conveyor belt 41 conveys the bamboo tube to its axial direction, before the first camera 1 shoots the outer profile of the bamboo tube in the axial direction, the movable positioning plate 42 at the end of the conveyor belt 41 can block the bamboo tube body 7 to continue to convey forward, so as to ensure that the bamboo tube body 7 and the first camera 1 keep a fixed distance, the movable positioning plate 42 can be provided with a proximity switch or other type of sensor, the sensor is connected with the PLC by the sensor, and a clamping device is arranged in the radial direction of the bamboo tube, when one end of the bamboo tube contacts the movable positioning plate 42, the sensor is triggered, the clamping device (clamp block structure controlled by the cylinders arranged at both sides of the conveyor belt 41) is controlled by the PLC to clamp the bamboo tube body 7 from the radial direction of the bamboo tube, so as to position the bamboo tube body 7, then, the movable positioning plate 42 is controlled to move to be separated from the end part of the bamboo tube, so that the first camera 1 can acquire the complete outer contour information of the end face of the bamboo tube; the movable positioning plate 42 may be a structure that is connected to the positioning plate body through a cylinder, and the cylinder drives the positioning plate to move along the radial direction of the bamboo tube.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, a first light source 5 is arranged around the first camera 1.
As can be seen from the above description, the first camera 1 can acquire clearer image information of the outer contour of the bamboo tube through the first light source 5, so as to obtain more accurate coordinates of the center of the circle of the bamboo tube body 7.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, a second light source 6 is arranged around the second camera 2.
As can be seen from the above description, the second camera 2 can acquire clearer inner contour image information of the bamboo tube by using the second light source 6, so as to obtain more accurate wall thickness data of the bamboo tube.
Further, in the structure of the bamboo tube measuring device based on the digital image processing technology, a PLC is further included, and the PLC is respectively electrically connected with the moving mechanism, the first camera 1, the second camera 2, the bamboo tube positioning device 4 and the computer.
According to the description, the control of the sequence of the components is realized through the PLC, and the aim of accurately, efficiently and automatically measuring the wall thickness and diameter data of the bamboo tube is fulfilled.
Example 1
A bamboo tube measuring method based on a digital image processing technology comprises the following steps:
step 1: controlling a first camera to shoot an outer contour image of the end face of the bamboo tube through a PLC;
step 2: the computer identifies and extracts all pixel points of the outer contour image of the end face of the bamboo tube, calculates the central position of the outer contour image according to all the pixel points, and calculates the position of the axis of the bamboo tube;
and step 3: controlling a second camera to move to the position of the axis of the bamboo tube through a PLC (programmable logic controller), and shooting the end face of the bamboo tube to obtain an inner contour image of the end face of the bamboo tube;
and 4, step 4: and the computer identifies and extracts each pixel point of the inner contour of the bamboo tube in the image, and calculates the diameter and the wall thickness of the bamboo tube according to each pixel point of the inner contour of the bamboo tube, each pixel point of the outer contour, the distance between the first camera and the end face of the bamboo tube when the first camera obtains the outer contour image of the bamboo tube and the distance between the second camera and the end face of the bamboo tube when the second camera obtains the inner contour image of the bamboo tube.
The first camera and the second camera may be industrial cameras, and the computer may be an industrial computer.
Example 2
Referring to fig. 1-3, a bamboo tube measuring device based on a digital image processing technology includes a first camera 1, a second camera 2, a computer, a moving mechanism and a bamboo tube positioning device 4, wherein the second camera 2 is connected to the moving mechanism, the second camera 2 is located between the first camera 1 and the bamboo tube positioning device 4, an axial direction of a bamboo tube positioned on the bamboo tube positioning device 4 is parallel to shooting directions of the first camera 1 and the second camera 2, and the computer is electrically connected with the first camera 1 and the second camera 2. Shooting a first image through a first camera 1 to obtain the outer contour of the bamboo tube body 7; the computer can calculate the circle center coordinate of the bamboo tube body 7 through the outer contour information of the first image, then the second camera 2 is controlled by a PLC or other control devices to move to the circle center coordinate of the bamboo tube by the moving mechanism, the second camera 2 is used for shooting the axial direction of the bamboo tube to obtain a second image so as to obtain the clear inner contour of the bamboo tube, and the diameter and wall thickness data of the bamboo tube can be accurately calculated through the outer contour information and the inner contour information of the bamboo tube under the synthesis of the first image and the second image. The moving direction of the moving mechanism is perpendicular to the shooting direction of the second camera 2. The shooting direction of the second camera 2 is the axial direction of the bamboo tube, and since each measurement needs to be guaranteed in order to guarantee the accuracy of the measured data, the axial distances between the first camera 1 and the second camera 2 and the bamboo tube are all kept fixed, and the moving direction of the second camera 2 is limited to the direction perpendicular to the axial direction of the bamboo tube, the second camera 2 can move in a manner that the shooting of the first camera 1 on the outer contour of the bamboo tube can be avoided, and the axial distance between the second camera 2 and the bamboo tube can be kept unchanged. The moving mechanism is a cross linear sliding table 3. The second camera 2 can be moved in the x-axis and z-axis directions in a plane perpendicular to the bamboo tube axis direction. The bamboo tube positioning device 4 comprises a conveying belt 41 and a movable positioning plate 42; the conveying direction of the conveying belt 41 is opposite to the shooting direction of the first camera 1, and the movable positioning plate 42 is positioned at the tail end of the conveying belt 41. The bamboo tube to be measured can be conveyed to a specific position through the conveying belt 41, referring to fig. 1-3, the conveying belt 41 conveys the bamboo tube to the axial direction, before the first camera 1 shoots the axial outer contour of the bamboo tube, the movable positioning plate 42 at the tail end of the conveying belt 41 can block the bamboo tube body 7 to continue to convey forwards, so as to ensure that the fixed distance between the bamboo tube body 7 and the first camera 1 is kept, a proximity switch or other types of sensors can be arranged on the movable positioning plate 42 and connected with a PLC through the sensors, a clamping device is arranged in the radial direction of the bamboo tube, after one end of the bamboo tube contacts the movable positioning plate 42, the sensors are triggered, the clamping device (clamping block structure controlled by cylinders arranged at two sides of the conveying belt 41) is controlled by the PLC to clamp the bamboo tube body 7 in the radial direction of the bamboo tube, so that the bamboo tube body 7 is positioned, and then the movable positioning plate 42 is controlled to move, the bamboo tube is separated from the end part of the bamboo tube, so that the first camera 1 can acquire the complete outer contour information of the end face of the bamboo tube; the movable positioning plate 42 may be a structure that is connected to the positioning plate body through a cylinder, and the cylinder drives the positioning plate to move along the radial direction of the bamboo tube. A first light source 5 is arranged around the first camera 1. The first camera 1 can acquire clearer bamboo tube outer contour image information through the first light source 5, so that more accurate circle center coordinates of the bamboo tube body 7 are obtained. A second light source 6 is arranged around the second camera 2. The second camera 2 can acquire clearer inner contour image information of the bamboo tube through the second light source 6, so that more accurate wall thickness data of the bamboo tube can be acquired. The PLC is respectively electrically connected with the moving mechanism, the first camera 1, the second camera 2, the bamboo tube positioning device 4 and the computer. The sequential control of the parts is realized through the PLC, and the aim of accurately, efficiently and automatically measuring the wall thickness and diameter data of the bamboo tube is fulfilled.
In summary, in the bamboo tube measuring method based on the digital image processing technology provided by the invention, the two cameras take images of the end faces of the two bamboo tubes from the original to the close, the first camera takes a first image, a clear outer contour image of the end face of the bamboo tube can be obtained from a longer distance, the computer calculates the center position of the bamboo tube and the position of the axis of the bamboo tube according to the outer contour image of the end face of the bamboo tube, then the second camera takes a second image, and a clear inner contour image of the end face of the bamboo tube can be obtained from a shorter distance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. The bamboo tube measuring method based on the digital image processing technology is characterized by comprising the following steps of:
shooting the end face of the bamboo tube twice from far to near to obtain an outer contour image of the end face of the bamboo tube and an inner contour image of the end face of the bamboo tube in sequence; and identifying and extracting each pixel point of the outer contour image of the end face of the bamboo tube and the inner contour image of the end face of the bamboo tube, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point.
2. The bamboo tube measuring method based on the digital image processing technology as claimed in claim 1, which comprises the following steps:
step 1: shooting the end face of the bamboo tube by a first camera to obtain an outer contour image of the end face of the bamboo tube;
step 2: the computer identifies and extracts each pixel point of the bamboo tube end face outer contour image, calculates the center position of the outer contour image according to each pixel point, and calculates the position of the axis of the bamboo tube;
and step 3: the second camera moves to the position where the axis of the bamboo tube is located, the end face of the bamboo tube is shot, and an inner contour image of the end face of the bamboo tube is obtained;
and 4, step 4: and identifying and extracting each pixel point in the image of the inner contour of the end face of the bamboo tube by the computer, and calculating the diameter and the wall thickness of the bamboo tube according to each pixel point of the inner contour and each pixel point of the outer contour.
3. The bamboo tube measuring method based on the digital image processing technology as claimed in claim 2, wherein the step 4 is specifically: the computer identifies and extracts all pixel points in the bamboo tube inner contour image, and the diameter and the wall thickness of the bamboo tube are calculated according to all the pixel points in the bamboo tube inner contour, all the pixel points in the outer contour, the distance between the first camera and the end face of the bamboo tube when the first camera obtains the bamboo tube outer contour image, and the distance between the second camera and the end face of the bamboo tube when the second camera obtains the bamboo tube inner contour image.
4. The bamboo tube measuring device based on the digital image processing technology is characterized by comprising a first camera, a second camera, a computer, a moving mechanism and a bamboo tube positioning device, wherein the second camera is connected to the moving mechanism and is positioned between the first camera and the bamboo tube positioning device, the axial direction of a bamboo tube positioned on the bamboo tube positioning device is parallel to the shooting direction of the first camera and the shooting direction of the second camera, and the computer is electrically connected with the first camera and the second camera.
5. The bamboo tube measuring device based on digital image processing technology as claimed in claim 4, wherein the moving direction of the moving mechanism is perpendicular to the shooting direction of the second camera.
6. The bamboo tube measuring device based on digital image processing technology as claimed in claim 5, wherein the moving mechanism is a cross linear sliding table.
7. The bamboo tube measuring device based on digital image processing technology as claimed in claim 4, wherein the bamboo tube positioning device comprises a conveyer belt and a movable positioning plate;
the conveying direction of the conveying belt is opposite to the shooting direction of the first camera, and the movable positioning plate is located at the tail end of the conveying belt.
8. The bamboo tube measuring device based on digital image processing technology as claimed in claim 4, wherein a first light source is provided around the first camera.
9. The bamboo tube measuring device based on digital image processing technology as claimed in claim 4, wherein a second light source is provided around the second camera.
10. The bamboo tube measuring device based on digital image processing technology as claimed in claim 4, further comprising a PLC electrically connected with the moving mechanism, the first camera, the second camera, the bamboo tube positioning device and the computer, respectively.
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| CN202110375660.8A CN113203363A (en) | 2021-04-08 | 2021-04-08 | Bamboo tube measuring method and measuring device based on digital image processing technology |
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Cited By (1)
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| CN116433747A (en) * | 2023-06-13 | 2023-07-14 | 福建帝视科技集团有限公司 | Construction method and detection device for detection model of wall thickness of bamboo tube |
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| CN116433747B (en) * | 2023-06-13 | 2023-08-18 | 福建帝视科技集团有限公司 | Construction method and detection device for detection model of wall thickness of bamboo tube |
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