Compact polarized paddy rice drawing method and system

Abstract

The invention discloses a compact polarized paddy rice drawing method and system, and the method comprises the steps: acquiring a radar data source; planning the acquisition of attribute feature dataof a sample field; receiving attribute feature data of the sample field and equally dividing the attribute feature data into training sample data and verification sample data; extracting preprocessingparameters of characteristic parameters of the radar data source; obtaining a response value of the sample field; calculating a number of support vector machines supported by each preprocessing parameter in the sample, and performing sequence traversal searching of the preprocessing parameters to obtain multi-temporal preferred feature parameters; carrying out the SVM (support vector machine) classification of the multi-temporal preferred feature parameters in the training sample data, building a preferred parameter building decision tree to obtain a classification result of the sample field;carrying out the evaluation of the classification accuracy of the classification result of the sample field to obtain a compact polarized paddy rice drawing of the sample field. The method and systemdo not need a large amount of manpower for the actual planning and segmenting, and greatly save the manpower cost.

Description

technical field [0001] The present invention relates to the technical field of using remote sensing data to finely classify different types of rice and planting methods, and more specifically, relates to a method and system for compactly polarized rice mapping. Background technique [0002] Rice is one of the world's three major food crops and is the source of food for more than half of my country's population. With the development of agricultural science and technology, rice varieties and planting methods are becoming more and more abundant. However, differences in varieties and planting methods will lead to certain differences in rice growth and yield. Traditional rice mapping (distinguishing rice from non-rice) has been difficult to meet the needs of high-precision agricultural applications. Therefore, it is of great significance to realize rice fine mapping, identify and distinguish different rice varieties and planting methods, and provide more accurate basic informati...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a method and system for compact and polarized rice mapping, which solves the problem of insufficient discrimination of different rice types and planting methods in rice mapping in the prior art, and lacks a more robust technology question

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