A method for extracting oil tank height based on a single satellite image
A satellite image and oil tank technology, which is applied in the field of remote sensing image processing and information extraction, can solve the problems of inability to accurately calculate the height of the shadow length oil tank, high requirements for equipment, instruments and data sources, and weak timeliness, so as to avoid calculation errors. , strong timeliness, the effect of improving the extraction speed
Active Publication Date: 2020-06-02
北京市遥感信息研究所
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However, in the conventional oil tank height extraction methods based on satellite images, firstly, the laser ranging method and stereo image pairing have the disadvantages of high requirements for equipment, instruments and data sources, and weak timeliness and complex calculations in case of emergency tasks The second is that the shadow length method is based on the arc edge characteristics of the shadow boundary of the oil tank, and there is a problem that the shadow length is difficult to measure accurately, which leads to the problem that the height of the oil tank cannot be accurately calculated
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[0050] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.
[0051] According to a specific embodiment of the present invention, a method for extracting the height of an oil tank based on a single satellite image is disclosed, comprising the following steps:
[0052] Step S0, obtaining the imaging parameters when the satellite image of the oil tank is taken;
[0053] Optical satellite images are generally shot under relatively good lighting conditions during imaging, and each image corresponds to the sun and satellite position information at the imaging moment, that is, instantaneous imaging parameters. However, in the traditional model of ground object height extraction based on the shadow length method, only a...
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The invention relates to a method for extracting the height of an oil tank based on a single satellite image, which includes: Step S0, obtaining the imaging parameters when shooting the satellite image of the oil tank; Step S1, obtaining the satellite image of the oil tank, and obtaining geometric precision correction through geometric precision correction Image; Step S2, identify and locate the arc edges P' and P" of the same name of the oil tank according to the shadow boundary characteristics of the oil tank on the geometrically corrected satellite image; Step S3, based on the arc edges P' and P of the same name located in step S2 ", determine the corresponding arc points T' and T" with the same name, and calculate the arc distance T'T" with the same name; Step S4, substitute the oil tank satellite image imaging parameters obtained in step S0 and the arc distance with the same name obtained in step S3 into the oil Tank height measurement model to obtain the height of the oil tank. The height of the oil tank can be accurately extracted based on a single satellite image, which effectively avoids the calculation error caused by manually determining the arc point of the same name, and greatly improves the speed of extracting the height of the oil tank.
Description
technical field [0001] The invention relates to the technical field of remote sensing image processing and information extraction, in particular to a method for extracting the height of an oil tank based on a single satellite image. Background technique [0002] The oil tank is the core facility of the oil reserve base and belongs to the national key construction strategic goal. Its height information is an important content and symbol of oil depot identification, storage capacity estimation and quantitative analysis, and is of great significance in national economic construction and national defense security capabilities. However, in the conventional oil tank height extraction methods based on satellite images, firstly, the laser ranging method and stereo image pairing have the disadvantages of high requirements for equipment, instruments and data sources, and weak timeliness and complex calculations in case of emergency tasks The second is that the shadow length method is ...
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IPC IPC(8): G06T7/62G06T5/00
CPCG06T7/62G06T2207/10004G06T5/80
Inventor 龙恩孟钢
Owner 北京市遥感信息研究所