Soil profile color acquisition method based on hyperspectral imaging technology
A hyperspectral imaging and soil profile technology, applied in the field of soil attribute analysis, can solve the problems of eye sensitivity, quantitative analysis, soil color and other problems of measurement results, and achieve the effect of being convenient for computer and network display
Active Publication Date: 2022-03-22
INST OF SOIL SCI CHINESE ACAD OF SCI
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Problems solved by technology
However, the soil color is difficult to quantify, and the measurement results are easily affected by factors such as the sensitivity of the measurement personnel's eyes
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[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0037] The present invention designs a soil profile color acquisition method based on hyperspectral imaging technology. In practical applications, such as figure 1 As shown, the following steps A to E are specifically performed.
[0038] Step A. According to the conditions of the equipment, gasoline or electric power soil drill can be used to obtain the entire section of soil profile at the target depth in the research area, and then enter step B.
[0039] Step B. For the entire soil profile, make the humidity of the entire soil profile reach a preset humidity state, and use it as a sample of the entire soil profile, and then proceed to step C.
[0040] In practical applications, for the preset humidity state, it can be designed to be divided into the state with humidity greater than the air-dry state soil humidity and ...
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The invention relates to a hyperspectral imaging technology-based soil profile color acquisition method, which comprises the following steps of: based on acquisition of a whole section of soil profile, scanning the whole section of soil profile through a hyperspectral imaging technology, and then acquiring a soil color parameter under a CIE XYZ standard color system by utilizing a soil reflection spectrum; the problems of quantitative analysis, color difference comparison and the like of soil color parameters based on a Munsell color system are solved; finally, the generated CIE XYZ soil color is an intermediate medium for space conversion of different colors, different research requirements can be met, the technology provides a method for converting the CIE XYZ soil color into the soil color under the sRGB color system at the same time, and computer and network display is facilitated; the whole technical scheme is of great significance to quickly and accurately obtain the color parameters of the soil profile, a new idea is provided for effectively monitoring the color of the soil profile, and the development of obtaining the attribute parameters of the soil based on the hyperspectral imaging technology is further promoted.
Description
technical field [0001] The invention relates to a soil profile color acquisition method based on hyperspectral imaging technology, and belongs to the technical field of soil attribute analysis. Background technique [0002] Color is an important attribute of soil, and it is a comprehensive reflection of the color of soil components, especially the color of chromophore substances (such as organic matter and iron compounds). Therefore, obtaining soil color information can assist in revealing the soil evolution and formation process and reflecting other soil attribute information. And soil color is more intuitive and easier to measure than other soil properties. Therefore, in soil science-related research, color is one of the most widely used soil monitoring parameters. [0003] At present, soil color mainly adopts the Munsell color system, which is described by the combination of three dimensions: hue (Hue, abbreviated as H), lightness (Value, abbreviated as V) and chroma (C...
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CPCG01N21/25
Inventor 王昌昆潘贤章
Owner INST OF SOIL SCI CHINESE ACAD OF SCI