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Crop marking method and device for remote sensing images facing the cold and cool regions of Northeast China

A technology of remote sensing image and marking method, which is applied in the direction of measuring devices, character and pattern recognition, instruments, etc., can solve the problems of not being able to accurately identify the type of crops and the difficulty of identifying different crops, and achieve accurate recognition and high recognition accuracy Effect

Active Publication Date: 2022-03-08
中科禾信遥感科技(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many types of crops in the cold and cool regions of Northeast China, and it is difficult to identify different crops. At present, there is no method that can accurately identify crop types

Method used

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  • Crop marking method and device for remote sensing images facing the cold and cool regions of Northeast China
  • Crop marking method and device for remote sensing images facing the cold and cool regions of Northeast China
  • Crop marking method and device for remote sensing images facing the cold and cool regions of Northeast China

Examples

Experimental program
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Effect test

Embodiment 1

[0077] This embodiment provides a method for marking crops in remote sensing images facing the cold and cool regions of Northeast China, such as figure 1 shown, including the following steps:

[0078] S1: Acquire remote sensing images of the area to be marked; the remote sensing images include blue light, green light, red light, near infrared, three red edge bands, and shortwave infrared bands, and the remote sensing images include images from May to September;

[0079] S2: Identify the pixels on the remote sensing image to determine the crop type;

[0080] When the pixel on the remote sensing image meets condition 1, it is recognized as corn, condition 1: T 1 05 2 , and NDVI 08 >T 3 , and REP 08 >T 4 ;

[0081] When the pixel on the remote sensing image meets condition 2, it is recognized as rice, condition 2: T 1 05 2 , and NDVI 08 >T 3 , and REP 08 ≤T 4 , and NDRI 08 ≤T 5 ;

[0082] When the pixel on the remote sensing image meets the condition 3, it is recogn...

Embodiment 2

[0135] This embodiment also provides a remote sensing image crop marking device facing the Northeast cold area, including:

[0136] Image acquisition module: used to obtain remote sensing images of the area to be marked; the remote sensing images include blue light, green light, red light, near infrared, 3 red edge bands, and short-wave infrared bands. The remote sensing image time includes May-September image;

[0137] Crop type identification module: identify the pixels on the remote sensing image to determine the crop type; when the pixel on the remote sensing image meets condition 1, it is recognized as corn, condition 1: T 1 05 2 , and NDVI 08 > T 3 , and REP 08 >T 4 ; When the pixel on the remote sensing image meets condition 2, it is recognized as rice, condition 2: T 1 05 2 , and NDVI 08 >T 3 , and REP 08 ≤T 4 , and NDRI 08 ≤T 5 ; When the pixel on the remote sensing image meets the condition 3, it is recognized as sugar beet, condition 3: T 1 05 2 , and ND...

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Abstract

This application relates to a remote sensing image crop marking method and device for cold and cold areas in Northeast China. The normalized difference vegetation index is used to distinguish vegetation from non-vegetation. The normalized building index is used to distinguish between buildings and fallow land. The position of the red edge The index was used to extract corn, the normalized rice index was used to extract rice, and the greenness index was used to distinguish soybeans from sugar beets. It has high recognition accuracy and can accurately identify crops and the plots where the crops are located.

Description

technical field [0001] The invention relates to the field of remote sensing monitoring of crops, in particular to a remote sensing image crop marking method and device for cold and cold regions in Northeast China. Background technique [0002] The adjustment of crop planting structure will be a national policy for the sustainable development of China's agricultural production. Crop rotation and fallow is the strategic layout of "storing grain in the ground and storing grain in technology", which has far-reaching significance for ensuring my country's food security and green transformation of agriculture. [0003] At present, the acquisition of crop planting area in the cold and cool regions of Northeast China is mostly based on statistical data, which has poor timeliness and authenticity, and cannot present spatial differentiation characteristics. The use of satellite remote sensing technology to monitor crop planting area has obvious advantages such as low cost, convenience...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17G06V20/13G06V10/764G06K9/62
CPCG01N21/17G01N2021/1797G06V20/188
Inventor 徐飞飞陆洲
Owner 中科禾信遥感科技(苏州)有限公司