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Uniform irradiation method and device in spectral imaging detection of agricultural products

A technology of spectral imaging and uniform illumination, which is used in measurement devices, material analysis by optical means, instruments, etc., can solve the problems of uneven illumination and influence, and achieve the effect of improving the detection accuracy of spectral imaging and solving the problem of inconspicuous image levels.

Active Publication Date: 2015-08-12
浙江德菲洛智能机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a uniform irradiation method and device in the spectral imaging detection of agricultural products, which uses the principle that the light tends to be uniform after being reflected and transmitted by the white nylon cloth multiple times, so as to solve the problem of uneven illumination and external environmental factors in the spectral imaging detection. impact issues

Method used

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  • Uniform irradiation method and device in spectral imaging detection of agricultural products
  • Uniform irradiation method and device in spectral imaging detection of agricultural products
  • Uniform irradiation method and device in spectral imaging detection of agricultural products

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 2 As shown, the light sources are two line light sources 7, and the two line light sources 7 are respectively installed in the spotlight rods 8. 7 is symmetrically fixed on the upper part of the hexahedron bracket 1, and the irradiation angles of the two line light sources 7 are adjusted respectively through the angle adjustment bolts 11 on the brackets 1 at both ends.

[0028] When the line light source 7 is powered on, it will emit two beams of linear light, which will be reflected by the white nylon cloth 2 multiple times to obtain relatively uniform light, and finally irradiate the detected agricultural products 9 placed on the tray 10, and the CCD camera 6 The image information is obtained through the shading hole 5, and the stray light in the outer layer cannot enter the detection area due to the effect of the black cotton cloth 3. The angle formed by the line light source 7 and the horizontal plane can be adjusted according to the needs of the ac...

Embodiment 2

[0030] Such as image 3 As shown, the light sources are four surface light sources 12, and the four surface light sources 12 are respectively installed in the middle of their respective brackets 1 at the same height.

[0031] When the surface light source 12 is energized, it will emit four beams of surface light, which are reflected by the white nylon cloth 2 multiple times to obtain relatively uniform illumination, and finally irradiate the detected agricultural products 9 placed on the tray 10, and the CCD camera 6 Image information is acquired through the hood hole 5 . The angle formed by the surface light source 12 and the white nylon cloth 2 can be adjusted according to the needs of the actual situation, so as to ensure uniform illumination used in the detection process.

Embodiment 3

[0033] Such as Figure 4 As shown, the light sources are four bar-shaped light sources 13, and the four bar-shaped light sources 13 are respectively installed in the middle of the upper part of the bracket 1 at the same height, and reflectors 14 are respectively arranged on the upper parts of the four bar-shaped light sources 13.

[0034] When the strip light source 13 is energized, four beams of strip light will be emitted. The strip light is reflected by the reflective plate 14 and the white nylon cloth 2 for many times to obtain relatively uniform illumination, and finally irradiates the object placed on the tray 10. On the detected agricultural product 9 , the CCD camera 6 acquires image information through the shading hole 5 , and the stray light on the outer layer cannot enter the detection area due to the effect of the black cotton cloth 3 . The angle formed by the strip light source 13 and the horizontal plane can be adjusted according to the needs of the actual situat...

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Abstract

The invention discloses a uniform irradiation method and a device for the spectral imaging detection of an agricultural product. The device comprises a hexahedral bracket, white nylon fabric, black cotton cloth, a light shielding cover, a CCD (Charge Coupled Device) camera, a light source and a tray; the black cotton cloth is coated on the peripheral outer side of the hexahedral bracket, the white nylon fabric is coated on the inner side of the hexahedral bracket, any one peripheral inner side of the hexahedral bracket is the removable white nylon fabric, and the outer side of the hexahedral bracket positioned on the same side as the removable white nylon fabric is the removable black cotton cloth; the light shielding cover is installed on the hexahedral bracket; the CCD camera is installed in a light shielding cover hole above the light shielding cover; the light source is installed at the peripheral inner side of the bracket; the tray is placed in the middle of the hexahedral bracket; and the agricultural product to be detected is placed on the tray. The uniform irradiation method and the device have the beneficial effects that as the uniform irradiation device is additionally arranged in the spectral imaging detection, the uniform irradiation device is suitable for various forms of irradiation, and more uniform illumination is obtained; the problems of unconspicuous image layers generated by non-uniform illumination in the spectral imaging detection, inconvenience in post-treatment and the like are solved; and a larger effect of improving the spectral imaging detection precision is achieved.

Description

technical field [0001] The invention relates to a detection method and device for agricultural products, in particular to a uniform irradiation method and device for spectral imaging detection of agricultural products. Background technique [0002] The detection and grading of agricultural products mainly involves the internal quality and external quality of agricultural products. At present, both have relevant technical support, and have related applications in countries all over the world, but these technologies are often only for internal quality or external quality. kind of. Spectral imaging technology is a new technology integrating spectral technology and imaging technology. It can be used for internal and external quality inspection of agricultural products at the same time. Its image information can detect the external quality of agricultural products, and spectral information can be used for internal quality inspection of agricultural products. , so as to achieve t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01
Inventor 应义斌胡栋张若宇饶秀勤高迎旺
Owner 浙江德菲洛智能机械制造有限公司