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Remote sensing image data processing method and system and storage medium

A remote sensing image and data processing technology, which is applied in the field of data processing, can solve the problems that affect the quickness and ease of use of the operating system, the long time for data reading, transmission, and processing, etc.

Active Publication Date: 2021-06-15
北京亿耘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the development of remote sensing, the types and accuracy of remote sensing image data have been continuously improved, leading to a sharp increase in remote sensing image data. Traditional remote sensing image data generally place image data in large-scale relational databases, so data reading, transmission , The processing time is very long, which seriously affects the quickness and ease of use of the operating system

Method used

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  • Remote sensing image data processing method and system and storage medium
  • Remote sensing image data processing method and system and storage medium
  • Remote sensing image data processing method and system and storage medium

Examples

Experimental program
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Embodiment 1

[0067] Such as figure 1 as shown, figure 1 A flow chart of a remote sensing image data processing method provided by an embodiment of the present invention is implemented by a server. The remote sensing image data processing method includes:

[0068] S1. Configuring Web Mercator projection coordinates, and projecting remote sensing image data to the Web Mercator projection coordinates;

[0069] S2. Constructing an image pyramid according to the resampling of the remote sensing image data;

[0070] S3. Traversing the image pyramid layers, creating a slice index for each layer level according to the boundary information of the remote sensing image data of each layer; the slice index includes the slice position, the number of slices, and the spatial index key of the slice;

[0071] S4. Cut the remote sensing image data at each layer level in the image pyramid layer into slices of regular size according to the slice index;

[0072] S5. Store the slices in a distributed reposito...

Embodiment 2

[0113] For ease of understanding, this embodiment uses a more specific scene to illustrate the remote sensing image data processing method, which is implemented by a system composed of a server and a client, such as Figure 5 As shown, the remote sensing image data processing method includes:

[0114] S51. The server configures Web Mercator projection coordinates, and reads remote sensing image data;

[0115] S52. The server projects the remote sensing image data to Web Mercator projection coordinates;

[0116] S53. The server resamples the remote sensing image data according to a sampling ratio of 4:1, and builds an image pyramid hierarchically according to the resampling result;

[0117] The original remote sensing image data is defined as the bottom layer of the image pyramid, and the resolution and data volume will decrease with each upward layer until resampling is impossible. The image pyramid layers start from level 0, and each upward level Level plus 1.

[0118] S54...

Embodiment 3

[0132] An embodiment of the present invention provides a remote sensing image data processing system, such as Figure 6 As shown, the remote sensing image data processing system includes a server and a client, and the server includes a first memory and a first processor;

[0133] a first memory for storing computer programs;

[0134] The first processor is configured to execute the computer program to realize the steps of the remote sensing image data processing method performed by the server in the above embodiment; details will not be repeated here.

[0135] the client includes a second memory and a second processor;

[0136] a second memory for storing computer programs;

[0137] The second processor is configured to execute the computer program to implement the steps of the client executing the remote sensing image data processing method in the above embodiment, which will not be repeated here.

[0138] This embodiment also provides a storage medium, which stores one or...

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Abstract

The invention relates to a remote sensing image data processing method and system and a storage medium. The method comprises the following steps: projecting remote sensing image data to a configured Web Mercator projection coordinate; constructing an image pyramid according to resampling of the remote sensing image data; creating a slice index for the layer level of the image pyramid layer, wherein the slice index comprises a slice position, a slice number and a spatial index key of the slice; cutting the remote sensing image data of each graph level into slices with regular sizes according to the slice indexes; storing the slices in a distributed storage library, wherein the distributed storage library comprises a metadata table storing attribute information of each slice and an object table storing the slices, the attribute information comprises row and column numbers, zoom levels, boundary ranges and projection information of the slices, the row and column numbers correspond to the spatial index key, and the slices are stored in a distributed storage library, so that the storage and expansion requirements of massive remote sensing images are met, and quick reading and writing of massive slices are achieved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a remote sensing image data processing method, system and storage medium. Background technique [0002] With the rapid development of spatial information science, the means and methods of obtaining various spatial data are becoming more and more rapid and diversified, and the most prominent performance is remote sensing image data. At present, many governments have applied massive remote sensing image data to the fields of national defense, land, environment, resources, etc., providing various map navigation services for the public, and gradually remote sensing image data has become one of the important data sources of spatial information science. [0003] However, with the development of remote sensing, the types and accuracy of remote sensing image data have been continuously improved, leading to a sharp increase in remote sensing image data. Traditional remote sensing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/51G06F16/587G06F16/27
CPCG06F16/51G06F16/587G06F16/27
Inventor 张峰
Owner 北京亿耘科技有限公司