Crop type sample collection method and device

A collection method and sample technology, applied in the field of remote sensing mapping, can solve the problems of time-consuming and labor-intensive, inability to obtain historical samples, scope limitations, etc., and achieve the effect of high collection efficiency and solid data foundation.

Active Publication Date: 2022-03-18
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In view of the above problems, the purpose of the present invention is to provide a method and device for collecting samples of crop types to solve the problems of time-consuming and laborious, inability to obtain historical samples, doubtful accuracy and limited scope in the current method of obtaining sample points.

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  • Crop type sample collection method and device
  • Crop type sample collection method and device

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Embodiment Construction

[0056] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details.

[0057] Aiming at the above-mentioned problems such as time-consuming and laborious, inability to obtain historical samples, doubtful accuracy and limited scope in the current method of obtaining sample points proposed above, a method and device for collecting crop type samples are proposed.

[0058] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] In order to illustrate the collection method of the crop type sample provided by the present invention, figure 1 The flow chart of the collection method of the crop type sample according to the embodiment of the present invention is shown; figure 2 The specific flow of ...

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Abstract

The invention provides a crop type sample acquisition method and device. The crop type sample acquisition method comprises the following steps: acquiring sample data with position information from a social network data platform; according to position information in the text data, performing vector conversion processing on the text data to obtain text vector data, and obtaining remote sensing data corresponding to the position information; calculating the position confidence of the sample data according to the text vector data, calculating the spectrum confidence of the sample data according to the remote sensing data, and calculating the image matching degree of the sample data according to the picture data; and based on a preset sample screening rule, judging the availability of the sample data according to the position confidence coefficient, the spectrum confidence coefficient and the image matching degree of the sample data. The method can solve the problems of time and labor wasting, incapability of obtaining historical samples, accuracy doubt, range limitation and the like in the current sample point obtaining mode.

Description

technical field [0001] The invention relates to the technical field of remote sensing mapping, and more specifically, to a method and device for collecting crop type samples. Background technique [0002] Remote sensing technology has the advantages of large-scale, long-term and dynamic monitoring. Different ground features exhibit different spectral characteristics, which makes remote sensing technology widely used in land cover mapping. Crop area mapping is a further subdivision of agricultural land types in land cover mapping. There are many types of crops, and the rotation of planting areas changes frequently. Opportunities and challenges coexist. [0003] In the process of remote sensing mapping of crop planting areas, efficiently obtaining relatively accurate and considerable sample points is the first step in remote sensing mapping, and it is also a difficult problem to solve. [0004] Current research often obtains sample points through the following three methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/9536G06F16/9537
CPCG06F16/9536G06F16/9537
Inventor 俞乐李曦煜
Owner TSINGHUA UNIV
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