Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for mapping rice growth region based on multi-feature extraction in growing period

A growing area, multi-feature technology, applied in the direction of instrumentation, computing, character and pattern recognition, etc.

Active Publication Date: 2019-03-29
SOUTH CHINA AGRI UNIV
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the phenology of rice is a gradual change process. The rice mapping method that captures the characteristics of a single growth period is likely to be disturbed by other surface information, such as river banks and wetlands. There are also a large number of vegetation-water mixed signals.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for mapping rice growth region based on multi-feature extraction in growing period
  • Method and system for mapping rice growth region based on multi-feature extraction in growing period
  • Method and system for mapping rice growth region based on multi-feature extraction in growing period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] see figure 1 , figure 1 It is a schematic flow chart of the rice growth area mapping method based on the multi-feature extraction of the growth period in the embodiment of the present invention.

[0054] like figure 1 Shown, a kind of rice growth area mapping method based on multi-feature extraction of growth period, described method comprises:

[0055] S11: Obtain the image data of the area where rice mapping is required, wherein the image data is L1TP-level Landsat surface albedo scientific image data;

[0056] In the specific implementation process of the present invention, the image data is obtained through Landsat 8 Operational Land Imager (OLI). The image data obtained in the embodiment of the present invention is the remote sensing image in 2015, wherein the image data comes from https: / / glovis.usgs .gov's L1TP-level Landsat surface albedo scientific data; the data list is shown in Table 1.

[0057] Table 1 Image data

[0058]

[0059] S12: Perform correc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a system for mapping a rice growth area based on multi-feature extraction in a growing period. The method comprises the following steps: obtaining image data of rice mapping area, wherein the image data is L1TP level Landsat surface reflectance scientific image data; Correcting the image data based on the top atmospheric reflectance correction algorithm to obtain corrected image data; Removing cloud and cloud shadow from the corrected image data to obtain processed image data; According to the processed image data, the rice growth area is mapped based on the rice growth period multi-feature mask extraction, and the rice growth area image is obtained. In the embodiment of the invention, the rice growing area can be simply and quickly captured and mapped,which is beneficial to the related research, policy management and the like of rice agriculture.

Description

technical field [0001] The invention relates to the technical field of agricultural mapping, in particular to a rice growth region mapping method and system based on multi-feature extraction of growing seasons. Background technique [0002] Rice agriculture plays an important role in global food security assessment, agricultural water resource utilization, greenhouse gas emissions, bird flu epidemic prevention, etc.; rice planting areas are vulnerable to climate change, agricultural policy adjustments, land use changes and other factors; for example, due to Due to rapid population growth and urbanization, China's rice planting area generally declined between 2005 and 2015; and due to climate warming and increased food demand, in the past decade, rice planting area has rapidly expanded in high-latitude regions, such as Northeast Asia; The information on the spatial variation of these rice cultivation is crucial to the related research of rice agriculture. [0003] The rice m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/188G06V10/462
Inventor 胡明月廖靖
Owner SOUTH CHINA AGRI UNIV