Hyperspectral imaging-based measuring equipment of chlorophyll content of whole rice plant and method thereof

Abstract

The invention discloses a hyperspectral imaging-based measuring equipment of chlorophyll content of a whole rice plant and a method thereof. The measuring equipment comprises a darkroom, a first light source, a second light source, a light source controller, a workstation computer, a hyperspectral camera, a first proximity switch, a second proximity switch, a translation stage, a translation stage controller and the like. The measuring method comprises the following steps: a hyperspectral imaging system is established; spectroscopic data of rice in each pot is acquired by the use of the hyperspectral imaging system; chlorophyll content of rice in each pot is measured manually; and modeling of chlorophyll and spectral indexes is conducted. By the utilization of the hyperspectral imaging method, the shot spectroscopic data is processed by data analysis and image processing techniques, and chlorophyll content of a whole rice plant is obtained through analysis. By integrating acquisition, extraction, calculation and other steps into the same system, the measuring equipment and the measuring method has advantages of online lossless measurement, accurate and reliable measuring result, simple operation and the like.

Description

technical field [0001] The invention relates to the technical field of machine vision detection, in particular to a device and method for measuring chlorophyll content of whole rice plants based on hyperspectral imaging. Background technique [0002] Rice is the main food crop in China, and the solution to the food problem mainly depends on increasing the yield per unit area of ​​rice. The high-throughput digital measurement of rice phenotypic parameters provides a strong technical support for the screening and identification of rice varieties. Chlorophyll content is a very important indicator in rice phenotype measurement research. It is the basic substance of plant cells. It is widely distributed in the chloroplast of cells. It is the most basic pigment for photosynthesis of plants and is closely related to the nutrient absorption of plants. It is widely used as an important indicator for detecting the state of plants. How to quickly, accurately and conveniently measure ...

AI Technical Summary

Problems solved by technology

Many spectral indexes are not adaptable, and the measurement results have poor generalizability

And the general way to obtain the spectral index is to use a spectroradiometer or multi-spectrum, with less data and lower resolution

Portable chlorophyll meters need to be in direct contact with leaves, and are not suitable for high-throughput phenotype online detection platforms

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