Positioning information correction method for remote sensing image
A technology of positioning information and correction methods, applied in the field of satellite remote sensing platform image processing, can solve the problems of occupying storage space, reducing the efficiency of remote sensing image mapping, inconvenient storage, management and query, etc., and achieve the effect of reducing storage space
Pending Publication Date: 2021-11-12
AEROSPACE INFORMATION RES INST CAS
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[0004] (1) The remote sensing image or vector data used as the control base map is unstructured data, which is not convenient for storage, management and query in the case of large data volume, so it will reduce the efficiency of remote sensing image mapping
[0005] (2) The data volume of remote sensing images or vector data is generally large, and basic data storage needs to occupy a large amount of space, and the reading process of remote sensing images or vector data will also reduce the efficiency of remote sensing image mapping
[0006] (3) High-quality remote sensing image mapping requires high-precision remote sensing images or vector data as the control base map, but high-precision remote sensing images or vector data are confidential data and cannot be deployed on a large scale in an open environment
[0007] To sum up, the existing remote sensing image mapping methods are based on control images or vector data to ensure the geometric accuracy of mapping, but there are problems of occupying a large amount of storage space, difficult management and query of large data volume benchmark data, and low processing effectiveness
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0028] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.
[0029] All terms (including technical and scientific terms) used herein have the meaning commonly understood by one of ordinary skill in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted to have a meaning consistent with the context of this specification, and not be interpre...
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The invention relates to a positioning information correction method for a remote sensing image. The method comprises the following steps: selecting a reference image according to a to-be-processed image; extracting first attribute information and first feature information of the reference image; establishing reference feature data according to the first attribute information and the first feature information, and storing the reference feature data in a database to construct a reference feature database; extracting second attribute information and second feature information of an image to be processed, and matching the second attribute information and the second feature information with the reference feature database to obtain matched data; and acquiring positioning information based on the matching data.
Description
technical field [0001] The invention relates to the technical field of satellite remote sensing platform image processing, in particular to a positioning information correction method for remote sensing images. Background technique [0002] The satellite remote sensing platform is developing in the direction of low cost, miniaturization, and high revisiting, which greatly increases the amount of data obtained for remote sensing images of ground targets. However, the low cost and miniaturization of satellite platforms inevitably reduces the geometric positioning accuracy of acquired images. In view of the lack of geometric positioning accuracy of massive remote sensing data, it is necessary to realize rapid and high-precision mapping of remote sensing images through ground control information, which puts forward higher and higher requirements for automatic rapid mapping of remote sensing images. [0003] The automatic rapid mapping of remote sensing images mostly uses the re...
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Login to View More IPC IPC(8): G06T7/73G06K9/00G06K9/46G06K9/62G06F16/583
CPCG06T7/73G06F16/583G06T2207/10032G06T2207/30181
Inventor 王峰胡玉新刘方坚
Owner AEROSPACE INFORMATION RES INST CAS