Hyperspectral imaging system and method integrating reflection and transmission

Abstract

The invention belongs to the technical field of non-destructive testing of agricultural product quality, and specifically discloses a hyperspectral imaging system and method integrating reflection andtransmission. The system comprises a box body, an imaging device arranged at the top of the box body and a transmission device arranged in the box body, the imaging device is used for obtaining an emission hyperspectral image and a transmission hyperspectral image of a sample to be detected, and is connected with a height adjustment device; and the transmission device is located below the imagingdevice, and comprises a displacement platform and a transmission unit mounted on the displacement platform, the transmission unit realizes position adjustment under the drive of the displacement platform for generating a transmission light source, and reflection light source components for generating reflection light sources are further arranged on the two sides of the transmission unit. The hyperspectral imaging system provided by the invention can not only collect the reflection hyperspectral images of various agricultural products, but also can collect the transmission hyperspectral imagesof different kinds of agricultural products, and has the advantages of high detection precision and convenient maintenance, and the like.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing of agricultural product quality, and more specifically relates to a hyperspectral imaging system and method integrating reflection and transmission. Background technique [0002] With the continuous improvement of people's living standards, consumers have put forward higher and higher requirements for the variety, freshness, food safety, and packaging appearance of agricultural products. Affected by various environmental factors during the growth and development of agricultural products, there may be differences in external qualities such as color, lesions, and deformities, as well as differences in internal qualities such as moisture, sugar content, and vitamins. Quality is the key factor in determining the price of agricultural products. Therefore, if agricultural products can be classified according to their internal and external quality before they go on the market, it will hel...

AI Technical Summary

Problems solved by technology

[0004] The hyperspectral image acquisition devices mentioned above can only collect transmission hyperspectral images of one or one type of agricultural products, and cannot obtain internal and external quality information at the same time, so their applications are limited

Due to the inconsistent shape and size of different types of agricultural products, when collecting reflection and transmission hyperspectral images, the requirements for light source power, shape and size of light transmission holes are different. At present, there is no way to collect reflection hyperspectral images of various agricultural products. A report on an experimental device capable of collecting its transmitted hyperspectral images

Under normal circumstances, if you need to collect reflection and transmission hyperspectral images of agricultural products, you need to process or purchase related devices, which is not only time-consuming and labor-intensive, but may also affect the detection accuracy

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