Threshold setting method and device in spectral similarity matching classification

A technology of spectral similarity and similarity threshold, which is applied in the field of threshold setting in spectral similarity matching classification, can solve the problems of setting threshold without data reference, cumbersome threshold setting process, affecting classification efficiency, etc., and achieves the improvement of threshold adjustment. Efficiency, improving classification efficiency, and simplifying the effect of the threshold setting process
CN112418314APending Publication Date: 2021-02-26GUANGDONG GONGYE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG GONGYE TECH CO LTD
Publication Date
2021-02-26

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Abstract

The invention belongs to the technical field of image data processing, and particularly relates to a threshold setting method and device in spectral similarity matching classification, and the methodcomprises the steps: obtaining a target region of interest selected from a hyperspectral image of a pre-selected object; calculating an actual similarity value between the spectral data of each pixelin the target region of interest and standard spectral data of each category in a preset spectral library; calculating a mean value and a variance of each actual similarity value; and obtaining the following threshold setting range according to the mean value and the variance of each actual similarity value. According to the method and device, reliable data reference is provided for threshold setting according to the mean value and the variance, threshold adjusting efficiency is improved, useless and irrelevant threshold setting steps are filtered out, the threshold setting process is simplified, classification efficiency is improved, and extremely high practicability is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of image data processing, and in particular relates to a threshold value setting method and device in spectral similarity matching classification. Background technique

[0002] The classification of items, such as garbage classification methods, has always been a technology that the market continues to explore and update. Commonly used classification methods on the market, such as using spectral similarity to classify, and classifying by spectral similarity.

[0003] When using spectral similarity for classification, it is necessary to set a similarity comparison threshold, and use the similarity threshold to determine which classification category it belongs to. At present, when setting the threshold, the technicians set it without purpose. They check the classification effect after the threshold setting one by one, and then adjust according to the classification effect. In this way, because the setting th...

Claims

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