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High-resolution image and GIS data registration method and device

A high-resolution, data-matching technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as difficulties, achieve the effect of improving accuracy and efficiency, and overcoming difficult acquisitions

Active Publication Date: 2017-10-27
SATELLITE ENVIRONMENT CENT MINIST OF ENVIRONMENTAL PROTECTION
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Problems solved by technology

However, the target-based registration method needs to extract the target directly from the high-resolution image first, which is a very difficult task.

Method used

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  • High-resolution image and GIS data registration method and device
  • High-resolution image and GIS data registration method and device

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] figure 1 Schematic flow chart of the high-resolution image and GIS data registration method provided by the embodiment of the present invention, as shown in figure 1 As shown, the method includes:

[0034] Step S11, obtaining the extracted line segment of the high-resolution image corresponding to the GIS polygon;

[0035] Specifically, ...

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Abstract

The invention provides a high-resolution image and GIS data registration method and device. The method comprises the following steps of: obtaining extraction segments of a high-resolution image corresponding to a GIS polygon; constructing a GIS-image two-layer graph according to the GIS polygon and the extraction segments, wherein the GIS-image two-layer graph comprises an adjacency relationship of edge segments of the GIS polygon and an adjacency relationship of the extraction segments; regrouping the extraction segments according to the GIS-image two-layer graph so as to generate a complete building profile matched with the GIS polygon; and calculating transform parameters between the high-resolution image and GIS data according to sane name point information of the building profile and the GIS polygon. According to the high-resolution image and GIS data registration method and device provided by the invention, the correctness and efficiency of registration between the high-resolution image and the GIS data are improved.

Description

technical field [0001] The invention relates to the technical field of multi-source data fusion, in particular to a registration method and device for high-resolution images and GIS data. Background technique [0002] High-resolution images are one of the best means to acquire land use and land cover change information. However, only using high-resolution images for classification and land use information extraction is facing great difficulties, and the accuracy and degree of automation are low. The integrated analysis of high-resolution images and GIS data is an important way to solve this problem, and the precise registration of high-resolution images and GIS data is an important prerequisite, which plays an important role in the acquisition of urban land use information and change information. Practical value. Oblique projection is often used for high-resolution image acquisition, while orthographic projection is used for GIS data acquisition. It is precisely because of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33
CPCG06T7/33G06T2207/10032G06T2207/30181
Inventor 王桥杜世宏郭舟赵少华刘思含吴艳婷毛学军
Owner SATELLITE ENVIRONMENT CENT MINIST OF ENVIRONMENTAL PROTECTION