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CN-121978660-A - Remote sensing mapping data processing system

CN121978660ACN 121978660 ACN121978660 ACN 121978660ACN-121978660-A

Abstract

The invention relates to the technical field of image data processing, in particular to a remote sensing mapping data processing system. The remote sensing image correction system at least comprises a first image acquisition module, a remote sensing image determination GCPs, a GCPs measurement module, a second image acquisition module, a second image correction module, a correction point acquisition module and a first image correction module, wherein the first image acquisition module is used for acquiring a remote sensing image, the remote sensing image is based on the remote sensing image determination GCPs, the GCPs measurement module is used for acquiring measurement data during measurement GCPs, the second image acquisition module is used for acquiring a low-altitude image, the second image correction module is used for correcting the low-altitude image by using GCPs and measurement data corresponding to the low-altitude image to obtain a corrected low-altitude image, the correction point acquisition module is used for determining a correction point based on the corrected low-altitude image, and the first image correction module is used for correcting the remote sensing image by using the corrected low-altitude image and the correction point on the corrected low-altitude image to obtain the corrected remote sensing image. According to the invention, through the cooperation processing of the two images, the transition is carried out by means of the clear low-altitude image in the low-altitude state, so as to correct the remote sensing image in cooperation with GCPs, and further, the more accurate remote sensing image is obtained.

Inventors

  • WU SHECHENG
  • CHEN CHAO

Assignees

  • 衢州市华创房地产测绘有限公司

Dates

Publication Date
20260505
Application Date
20240408

Claims (10)

  1. 1. A remote sensing mapping data processing system, comprising at least: a first image acquisition module (100) for acquiring a remote sensing image; determining GCPs (1) based on the remote sensing image; GCPs a measurement module (200) for acquiring measurement data (2) when measuring GCPs (1); a second image acquisition module (300) for acquiring a low-altitude image (3); A second image correction module (400) for correcting the low-altitude image (3) by using the GCPs (1) and the corresponding measurement data (2) to obtain a corrected low-altitude image (4); a correction point acquisition module (500) that determines a correction point (5) based on the corrected low-altitude image (4); And a first image correction module (600) for correcting the remote sensing image by using the corrected low-altitude image (4) and the correction point (5) on the corrected low-altitude image (4) to obtain a corrected remote sensing image (6); The output end of the first image acquisition module (100) is connected with the GCPs measurement module (200), the input end of the second image correction module (400) is connected with the second image acquisition modules (300) and GCPs measurement module (200), the output end of the second image correction module (400) is connected with the correction point acquisition module (500), and the input end of the first image correction module (600) is connected with the second image correction module (400) and the correction point acquisition module (500).
  2. 2. The remote sensing mapping data processing system of claim 1, wherein the remote sensing image is acquired based on a satellite-borne device.
  3. 3. The remote sensing mapping data processing system of claim 1, wherein the remote sensing image is acquired based on an unmanned aerial vehicle onboard device.
  4. 4. A remote sensing mapping data processing system according to any of claims 1-3, characterized in that the remote sensing image acquired by the first image acquisition module (100) comprises radiation data, atmospheric data, geometrical data and image data.
  5. 5. A telemetric data processing system according to any of claims 1-3, characterized in that the acquisition height of the low-altitude image (4) is lower than the acquisition height of the telemetric image.
  6. 6. A remote sensing mapping data processing system according to any of claims 1-3, characterized in that the method step of determining GCPs (1) based on the remote sensing image is as follows: s1.1, dividing a remote sensing image into a plurality of matrixes to obtain a plurality of remote sensing image blocks; s1.2, automatically detecting corner points at the periphery of a remote sensing image block; s1.3, performing redundancy processing on the corner points, and determining the redundant corner points as GCPs (1).
  7. 7. The remote sensing mapping data processing system of claim 1, wherein the GCPs measurement module (200) obtains GCPs (1) measurement data (2) including coordinate data, position within the remote sensing image, error information, and attribute information.
  8. 8. The remote sensing mapping data processing system of claim 6, wherein the second image acquisition module (300) acquires a low-altitude image (3) within a matrix comprising GCPs (1).
  9. 9. The remote sensing mapping data processing system according to claim 8, wherein the first image correction module (600) is preset with an ideal resolution between the resolution of the remote sensing image block and the resolution of the low-altitude image (3), and the resolution of the remote sensing image block including GCPs (1) and the resolution of the low-altitude image (3) are equalized to the ideal resolution by a scaling process.
  10. 10. The remote sensing mapping data processing system of claim 9, wherein the step of performing correction processing on the remote sensing image by the first image correction module (600) comprises: s2.1, classifying the remote sensing image blocks according to different processing algorithms used by the remote sensing image blocks; S2.2, according to classification, synchronously performing a plurality of processing algorithms to correct the remote sensing image block containing GCPs (1) to obtain a corrected remote sensing image block; S2.3, restoring the resolution of the corrected remote sensing image block; S2.4, correcting the remote sensing image block which does not contain GCPs (1) based on the restored corrected remote sensing image block to obtain a corrected remote sensing image (6).

Description

Remote sensing mapping data processing system Technical Field The invention relates to the technical field of image data processing, in particular to an image data processing system for remote sensing mapping. Background The remote sensing mapping image is a series of mapping images obtained by using a remote sensing technology, and in the process of collecting the remote sensing mapping image, the problems of long image collecting distance, weather factor influence and equipment performance limitation are solved, however, the prior art for solving the problems is perfect, for example: The invention discloses an intelligent enhancement method for a remote sensing mapping image, which comprises the steps of acquiring a remote sensing mapping image, acquiring a preliminary enhancement image of the remote sensing mapping image, acquiring a first region and a second region in the preliminary enhancement image, acquiring enhancement factors of the first enhancement region, enhancing the first region to obtain a final enhanced first region, enhancing the second region by wavelet coefficient amplitude, and carrying out wavelet inverse transformation on the enhanced wavelet coefficient amplitude to obtain a final enhanced second region; Or Chinese patent publication No. CN115147313B discloses a geometric correction method, a device, equipment and a medium of an elliptical orbit remote sensing image, which relate to the technical field of remote sensing image processing and are used for solving the problem of high-precision geometric positioning of the elliptical orbit remote sensing image; the method comprises the steps of fitting and interpolating orbit data of an elliptical orbit, calculating one-to-one correspondence of image side coordinates to a space coordinate system according to the interpolated attitude data, the fitted and interpolated orbit data and the heights of elliptical orbit satellites, calculating pixel resolutions for normalizing spaces of different geographic positions to the same ground based on the one-to-one correspondence of the image side coordinates to the space coordinate system, resampling an elliptical orbit remote sensing image according to pixel resolution parameters, obtaining the radiation brightness value of each pixel after resampling, and realizing geometric correction of the elliptical orbit remote sensing image. In the above patent or the prior art, correction processing is mostly performed on a final remote sensing image, but in this way, the reference image is limited, and it is difficult to achieve the expected effect, especially for the high-altitude remote sensing mapping image, the definition of the image itself is not high enough, GCPs in the image is difficult to clearly identify, and the number of GCPs that can be established on the ground is limited. Disclosure of Invention The invention aims to provide a remote sensing mapping data processing system which is used for solving the problems in the background technology. In order to achieve the above object, there is provided a remote sensing mapping data processing system, at least comprising: the first image acquisition module is used for acquiring remote sensing images; Determining a Ground Control Point (GCPs) based on the remote sensing image; GCPs a measurement module for acquiring measurement data when measuring GCPs; A second image acquisition module for acquiring a low-altitude image; the second image correction module corrects the low-altitude image by using the GCPs and the corresponding measurement data to obtain a corrected low-altitude image; a correction point acquisition module that determines a correction point based on the corrected low-altitude image; the first image correction module corrects the remote sensing image by using the corrected low-altitude image and the correction point on the corrected low-altitude image to obtain a corrected remote sensing image; The first image acquisition module output end is connected with the GCPs measurement module, the second image correction module input end is connected with the second image acquisition module and the GCPs measurement module, the second image correction module output end is connected with the correction point acquisition module, and the first image correction module input end is connected with the second image correction module and the correction point acquisition module. As a further improvement of the technical scheme, the remote sensing image is acquired based on satellite-mounted equipment. As a further improvement of the technical scheme, the remote sensing image is acquired based on unmanned aerial vehicle carrying equipment. As a further improvement of the technical scheme, the remote sensing image acquired by the first image acquisition module comprises radiation data, atmosphere data, geometric data and image data. As a further improvement of the technical scheme, the acquisition height of the low-altitude image is lower than that of th