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Three-dimensional image RPC model positioning system based on high-resolution remote sensing satellite

A remote sensing satellite and stereoscopic image technology, which is applied in the field of remote sensing satellite image processing, can solve the problems of positioning accuracy to be improved, and achieve the effect of accurate graphic coordinates and precise positioning results

Active Publication Date: 2022-05-27
GLOBALTOUR GROUP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of positioning, the system does not deal with the interference received in the process of collecting graphics, which leads to the need to improve the positioning accuracy

Method used

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  • Three-dimensional image RPC model positioning system based on high-resolution remote sensing satellite
  • Three-dimensional image RPC model positioning system based on high-resolution remote sensing satellite
  • Three-dimensional image RPC model positioning system based on high-resolution remote sensing satellite

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Embodiment 1

[0046] This embodiment provides a positioning system based on a high-resolution remote sensing satellite stereo image RPC model, combined with figure 1 , including an acquisition module, a calibration module, a model processing module and a ground control point, the acquisition module is used to collect image data on the ground, the ground control point is used to provide reference information on the ground, and the model processing module is based on the collected images. Data processing to obtain a three-dimensional model, and the calibration module performs calibration and positioning on the three-dimensional model according to the image data;

[0047] The acquisition module obtains several independent regions according to the image data processing, and the acquisition module sends the information of each independent region to the model processing module;

[0048] The model processing module creates a three-dimensional model according to each independent area, and calculate...

Embodiment 2

[0077] This embodiment includes all the content of the first embodiment, and provides a positioning system based on a high-resolution remote sensing satellite stereo image RPC model, including an acquisition module, a calibration module, a model processing module and a ground control point. The acquisition module is a high-resolution remote sensing satellite. Remote sensing satellites are used to collect ground image information, the model processing module generates a three-dimensional model according to the ground image information, the ground control point is used to provide reference information captured by the acquisition module, and the calibration module is based on the ground image information. Image information and reference information to locate the three-dimensional model;

[0078] combine figure 2 , the acquisition module includes a first coordinate unit, a reference information extraction unit and a single model extraction unit, the first coordinate unit is used ...

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Abstract

The invention provides a high-resolution remote sensing satellite-based stereoscopic image RPC model positioning system, which comprises an acquisition module, a calibration module, a model processing module and a ground control point, and is characterized in that the acquisition module is a high-resolution remote sensing satellite and is used for acquiring ground image information, the model processing module generates a stereoscopic model according to the ground image information, and the calibration module is used for calibrating the stereoscopic model. The ground control point is used for providing reference information captured by the acquisition module, and the calibration module is used for positioning a stereoscopic model according to ground image information and the reference information; multiple types of parameters are calculated according to reference information provided by ground control points of the system, coordinates of each three-dimensional model in an image are converted into actual coordinates according to the parameters, various interference factors in the image acquisition process are made up for due to the existence of the parameters, and the positioning result is more accurate.

Description

technical field [0001] The invention relates to the field of remote sensing satellite image processing, in particular to an RPC model positioning system based on a high-resolution remote sensing satellite three-dimensional image. Background technique [0002] Precise geometric positioning of remote sensing images is the basis for further applications of remote sensing images. The remote sensing image is affected by various complex factors in the imaging process, causing it to produce geometric deformation. Therefore, it must be determined by establishing the geometric relationship between the ground point coordinates in the object space coordinate system and its image point coordinates on the image plane. Geometric positioning information of the image. Theoretically, with the support of accurate ground elevation data, the real geometric position of each pixel on the image can be recovered by using the strict imaging geometric model of the satellite remote sensing image, so ...

Claims

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Application Information

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IPC IPC(8): G06T7/73G06T17/05G06F17/11G06F17/16G01C11/00
CPCG06T7/75G06T17/05G06F17/11G06F17/16G01C11/00G06T2207/10032G06T2207/30181
Inventor 张卫平丁烨张思琪向荣丁园
Owner GLOBALTOUR GROUP LTD
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