CN215678079U - Tobacco leaf image acquisition system - Google Patents
Tobacco leaf image acquisition system Download PDFInfo
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- CN215678079U CN215678079U CN202122216408.0U CN202122216408U CN215678079U CN 215678079 U CN215678079 U CN 215678079U CN 202122216408 U CN202122216408 U CN 202122216408U CN 215678079 U CN215678079 U CN 215678079U
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- tobacco leaf
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- acquisition system
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Abstract
A tobacco leaf image acquisition system is characterized in that: including base, the image acquisition room of setting on the base and set up the camera at image acquisition room top through stand and davit, image acquisition room side is provided with the dodge gate that can open and shut, the base is the inside negative pressure auxiliary device that is provided with of hollow structure, and this negative pressure auxiliary device is including looping through communicating negative pressure objective table, vacuum generator and the air compressor of pipe, the central point that the negative pressure objective table is located image acquisition room bottom puts, and the equipartition has the suction hole that is used for adsorbing the tobacco leaf on the mesa, is provided with light source and colour temperature illuminometer respectively in image acquisition room top and bottom. Compared with the prior art, the utility model has the following maximum advantages: the tobacco leaves can be flatly paved on the negative pressure objective table to be flat and unfolded, so that the accuracy of the appearance of the tobacco leaf image is ensured; a stable illumination environment is provided for the acquisition of the tobacco leaf images, and the accuracy of the colors of the tobacco leaf images is ensured.
Description
Technical Field
The utility model relates to the field of tobacco leaf appearance acquisition and classification, in particular to a tobacco leaf image acquisition system.
Background
The appearance of the tobacco leaves is the main basis for grading the tobacco leaves, and the appearance of the tobacco leaves mainly comprises indexes such as color, shape, size, texture, identity and the like of the tobacco leaves. At present, in the field of domestic tobacco grading, the appearance of tobacco is judged mainly by means of senses of professional technicians, such as color, form and size, and the texture and identity are mainly touched by hands, the judgment method depends on personal experience of the professional technicians, and the judgment result is prone to large deviation. With the development of machine vision and image processing technology, the tobacco industry begins to explore and utilize tobacco leaf images to assist in tobacco leaf grading, namely, the tobacco leaf images are collected, the tobacco leaf image characteristics are analyzed, the relationship between the image characteristics and the tobacco leaf grades is researched, and finally the tobacco leaf grading is assisted through the tobacco leaf images.
Chinese patent also discloses a plurality of tobacco leaf image acquisition devices, for example, patent number 201720101420.8 discloses a tobacco leaf image acquisition device, the inside airtight light-tight of tobacco leaf photo box, the inner wall four sides are the processing of not reflecting light of black, the bottom is the processing of not reflecting light of white, the top of case inner chamber is provided with lighting system, can realize same condition, place the tobacco leaf and carry out image acquisition's purpose under the certain environment of illumination intensity when taking a picture under the same standard parameter, thereby solve different equipment, different visual angles, carry out image acquisition's influence to the tobacco leaf under the different illumination condition.
Patent No. 201520666424.1 discloses a tobacco leaf image acquisition device, including base, motor, a plurality of collection board and image sensor, when gathering the tobacco leaf image, a plurality of tobacco leaves are respectively tiled on each collection board, and after image sensor gathered the image of a slice of tobacco leaf, the pivot of motor rotated, took image sensor under with next collection board, can realize the continuous collection of multi-disc tobacco leaf image.
The acquisition of the tobacco leaf image mainly depends on the traditional CCD camera, if the acquired image is applied to tobacco leaf classification, the color accuracy of the tobacco leaf image is higher, so that the requirements on the shooting environment are higher, and the conditions such as light source intensity, light source color temperature and the like need to be stable and controllable; meanwhile, as the tobacco leaf image needs to be analyzed in shape and size, certain requirements are also placed on the stretching degree of the tobacco leaf of the photographed object, and the shrunken tobacco leaf can seriously influence the image analysis result. 201720101420.8 solves the problem of light source illumination, but researches show that the color temperature of a light source can also greatly influence the accuracy of tobacco leaf image acquisition, and the problem of light color temperature is not solved in the two Chinese patents; 201520666424.1, the tobacco leaf images can be collected continuously, but no device for shielding the ambient light is arranged, so the ambient light can have a great influence on the collection of the tobacco leaf images; meanwhile, the two patents do not solve the problem of smooth spreading of the tobacco leaves, and if the tobacco leaves cannot be spread smoothly, the collected images cannot accurately reflect the characteristics of the surfaces of the tobacco leaves.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system suitable for tobacco leaf image acquisition, which is designed based on the prior art and has the advantages of stable environment, smooth tobacco leaf stretching and reliable shooting result.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides a tobacco leaf image acquisition system, includes the base, sets up the image acquisition room on the base and sets up the camera at image acquisition room top through stand and davit, and image acquisition room lateral surface is provided with the dodge gate that can open and shut, the base is the inside negative pressure auxiliary device that is provided with of hollow structure, and this negative pressure auxiliary device is including looping through communicating negative pressure objective table, vacuum generator and the air compressor of pipe, the negative pressure objective table is located the central point of image acquisition room bottom and puts, and the equipartition has the suction hole that is used for adsorbing the tobacco leaf on the mesa, is provided with light source and colour temperature illuminometer respectively in image acquisition room top and bottom.
The image acquisition chamber is made of light-tight materials, and light diffuse reflection materials are attached to the inner wall of the image acquisition chamber.
The suspension arm can slide up and down relative to the upright post and is locked for adjusting the height of the camera.
A rubber light shield is arranged between the top of the image acquisition chamber and the suspension arm to avoid light leakage of the matching part.
In the image acquisition room, the position of colour temperature illuminometer is in negative pressure objective table one side, and its height is unanimous with the negative pressure objective table, or is a little higher than the negative pressure objective table, guarantees that the tobacco leaf places in the back of negative pressure objective table and colour temperature illuminometer height basic unanimous.
And the camera and the color temperature and illuminance meter are connected with a computer control system. The camera is a CCD industrial camera and adopts a fixed-focus lens to obtain higher image quality.
The image acquisition chamber is of a rectangular structure, and a light source is arranged on each of the four top corners.
The light source is preferably a halogen light source.
Compared with the prior art, the utility model has the following maximum advantages: the tobacco leaves can be flatly paved on a negative pressure objective table, under the adsorption action of negative pressure, the tobacco leaves can be flatly and spread, wrinkles are avoided, and the accuracy of the appearance of the tobacco leaf image is ensured; a stable illumination environment is provided for the acquisition of the tobacco leaf images, and the accuracy of the colors of the tobacco leaf images is ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a base; 2. a column; 3. a suspension arm; 4. a data line; 5. a computer; 6. a camera; 7. a rubber light shield; 8. a collection chamber; 9. a light source; 10. a movable door; 11. a color temperature illuminometer; 12. a negative pressure objective table; 13. an air compressor; 14. a conduit; 15. a vacuum generator.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1: the utility model provides a tobacco leaf image acquisition system, includes base 1, sets up image acquisition room 8 on the base and sets up the camera 6 at image acquisition room top through stand 2 and davit 3, and 8 sides in the image acquisition room are provided with dodge gate 10 that can open and shut, the base is the inside negative pressure auxiliary device that is provided with of hollow structure, and this negative pressure auxiliary device is including looping through communicating negative pressure objective table 12, vacuum generator 15 and air compressor 13 of pipe 14, negative pressure objective table 12 is located the central point of image acquisition room 8 bottom and puts, and the equipartition has the suction hole that is used for adsorbing the tobacco leaf on the mesa, is provided with light source 9 and colour temperature illuminometer 11 respectively in the top of image acquisition room 8 and bottom.
The image acquisition chamber 8 is made of opaque materials, and light diffuse reflection materials are attached to the inner wall of the image acquisition chamber; a rubber light shield 7 is arranged between the top of the image acquisition chamber and the suspension arm to avoid light leakage.
The boom 3 is slidable up and down and locked with respect to the column 2 for adjusting the height of the camera 6.
In the image acquisition room, the color temperature illuminometer is positioned on one side of the negative pressure objective table, and the height of the color temperature illuminometer is consistent with that of the negative pressure objective table.
And the camera and the color temperature and illuminance meter are connected with a computer control system.
The image acquisition chamber is of a rectangular structure, and a light source is arranged on each of the four top corners.
The using process and the steps of the utility model are as follows:
step 1: turning on a light source, and preheating for 20 minutes;
step 2: turning on the air compressor;
and step 3: adjusting the vacuum generator to enable the negative pressure generated by the negative pressure objective table to be capable of just adsorbing the tobacco leaves and keeping the tobacco leaves smooth and stretched;
and 4, step 4: opening the movable door, and placing the tobacco leaves on a negative pressure objective table to ensure that the tobacco leaves are smooth and unfolded;
and 5: adjusting the height of the camera support arm to ensure that the camera can shoot complete tobacco leaves;
step 6: adjusting the focal length of the camera to ensure that the image is focused;
and 7: closing the movable door;
and 8: the computer reads the parameters of the color temperature illuminometer and adjusts the exposure parameters of the camera according to the parameters to ensure the color balance and accurate exposure of the tobacco leaf picture shot by the camera;
and step 9: and the computer controls the camera to shoot the tobacco leaf picture and store the tobacco leaf picture.
The tobacco leaf image acquisition is completed through the steps, and the tobacco leaves on the negative pressure objective table are replaced to obtain images of different tobacco leaves.
Claims (9)
1. A tobacco leaf image acquisition system is characterized in that: including base, the image acquisition room of setting on the base and set up the camera at image acquisition room top through stand and davit, image acquisition room side is provided with the dodge gate that can open and shut, the base is the inside negative pressure auxiliary device that is provided with of hollow structure, and this negative pressure auxiliary device is including looping through communicating negative pressure objective table, vacuum generator and the air compressor of pipe, the central point that the negative pressure objective table is located image acquisition room bottom puts, and the equipartition has the suction hole that is used for adsorbing the tobacco leaf on the mesa, is provided with light source and colour temperature illuminometer respectively in image acquisition room top and bottom.
2. The tobacco leaf image acquisition system according to claim 1, characterized in that: the image acquisition chamber is made of light-tight materials, and light diffuse reflection materials are attached to the inner wall of the image acquisition chamber.
3. The tobacco leaf image acquisition system according to claim 1, characterized in that: the suspension arm can slide up and down relative to the upright post and is locked for adjusting the height of the camera.
4. The tobacco leaf image acquisition system according to claim 1, characterized in that: a rubber light shield is arranged between the top of the image acquisition chamber and the suspension arm to avoid light leakage.
5. The tobacco leaf image acquisition system according to claim 1, characterized in that: in the image acquisition room, the color temperature illuminometer is positioned on one side of the negative pressure objective table, and the height of the color temperature illuminometer is consistent with that of the negative pressure objective table.
6. The tobacco leaf image acquisition system according to claim 1, characterized in that: and the camera and the color temperature and illuminance meter are connected with a computer control system.
7. The tobacco leaf image acquisition system according to claim 1, characterized in that: the image acquisition chamber is of a rectangular structure, and a light source is arranged on each of the four top corners.
8. The tobacco leaf image acquisition system according to claim 1, characterized in that: the camera is a CCD industrial camera and adopts a fixed-focus lens.
9. The tobacco leaf image acquisition system according to claim 1 or 7, characterized in that: the light source is a halogen light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122216408.0U CN215678079U (en) | 2021-09-14 | 2021-09-14 | Tobacco leaf image acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122216408.0U CN215678079U (en) | 2021-09-14 | 2021-09-14 | Tobacco leaf image acquisition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215678079U true CN215678079U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122216408.0U Active CN215678079U (en) | 2021-09-14 | 2021-09-14 | Tobacco leaf image acquisition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215678079U (en) |
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2021
- 2021-09-14 CN CN202122216408.0U patent/CN215678079U/en active Active
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