Remote sensing image data generation method, system and equipment

Abstract

The invention provides a remote sensing image data generation method, system and equipment. The method comprises the steps of shooting multiple groups of multi-focus inclined images in a target area through shooting equipment on an airplane; performing image registration on the acquired multiple groups of multi-focus inclined images and fusing overlapping regions to obtain multiple groups of spliced images; performing three-dimensional reconstruction on all the spliced images to generate dense point cloud; generating a digital surface model for the dense point cloud; correcting the fused multiple groups of spliced images based on the digital surface model and the position information of each set of shooting equipment to obtain orthoimages; and splicing the orthoimages into remote sensing image data of the target area. The method disclosed by the embodiment of the invention is low in cost, good in timeliness and high in data resolution, realizes low-cost collection and image data processing, and obtains high-resolution remote sensing image data.

Description

technical field [0001] The invention relates to the technical field of geographic surveying and mapping, in particular to a method, system and equipment for generating remote sensing image data. Background technique [0002] Remote sensing technology began in the 1960s. It can collect the surface radiation and electromagnetic wave information of the target object at a long distance through various sensing instruments, and process it into an image, so as to meet the needs of detection and identification of the target scene. It is an important aspect of geographic information. method of obtaining. [0003] Geographic information collection tasks usually require sensors to be fixed on platforms such as balloons, aircraft models, airplanes, artificial satellites, spacecraft, and space laboratories, and then the data is transmitted and processed into usable data. These traditional remote sensing technologies have shortcomings such as high cost, long period, lack of immediacy, an...

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Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide users with a remote sensing data generation method, system and equipment to overcome the high cost of geographical information collection, long data transmission and processing cycle in the remote control technology in the prior art. , poor immediacy and many factors affecting data instructions

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