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Method for identifying marine artificial facilities by using spectral remote sensing images

A technology for remote sensing images and facilities, applied in the field of intelligent recognition of remote sensing images, can solve problems such as large-scale and large-scale identification of artificial facilities, and achieve good application prospects.

Inactive Publication Date: 2018-02-16
北京市遥感信息研究所
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Problems solved by technology

[0004] At present, the method of detecting artificial facilities based on remote sensing mainly relies on manual image judgment, and it is impossible to identify artificial facilities on a large scale. Especially small artificial facilities are affected by the spatial resolution of remote sensing, and there may be several pixels or even sub-pixels. At this time, manual judgment is basically ineffective

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  • Method for identifying marine artificial facilities by using spectral remote sensing images
  • Method for identifying marine artificial facilities by using spectral remote sensing images
  • Method for identifying marine artificial facilities by using spectral remote sensing images

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Embodiment

[0035] like figure 1 As shown, a method for utilizing spectral remote sensing images to identify artificial facilities on the sea provided by the present invention comprises the following steps:

[0036] (1) Background analysis: Obtain relevant information about the artificial facilities to be detected, including size, shape and material, etc., to provide input information for subsequent steps, and its size is used in step (2) to determine whether the result of abnormal detection is pure pixels or sub-pixels And roughly how many pixels are in the image, the shape is mainly used for image matching in step (5), and the material is mainly used for spectral matching in step (5).

[0037] Data preprocessing is performed on the hyperspectral data before the background analysis, and the method including removing the water absorption band is mainly used to remove the band with excessive noise.

[0038] (2) Anomaly detection: Considering that it takes a long time to perform feature ex...

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Abstract

The present invention discloses a method of identifying marine artificial facilities using spectral remote sensing images. According to the method, hyperspectral data are preprocessed, thereafter, anomaly detection is performed, and therefore, a suspected target can be obtained; spectral features such as a band ratio and a spectral derivative are extracted in a spectral domain; the linear and circular features of target images are extracted in an image domain by using the clear geometric texture of a red band; and a target of interest is identified through fusion analysis. The method providedby the invention fills a technical blank by utilizing remote sensing images to automatically identify marine artificial facilities. The method is suitable for the detection and identification of marine artificial facilities by hyperspectral sensors, is also applicable to multi-spectral images, and has a bright application prospect.

Description

technical field [0001] The invention relates to a method for identifying artificial facilities on the sea by using spectral remote sensing images, and belongs to the technical field of intelligent identification of remote sensing images. Background technique [0002] The management, maintenance and utilization of islands and reefs in sea areas is one of the important contents of national sovereignty. Ascertaining the artificial facilities at sea in sea areas is of great significance for ensuring normal navigation at sea, development and utilization, and safeguarding national maritime rights and interests. Due to various historical reasons, my country's understanding of artificial facilities in the South China Sea is far from meeting the actual needs. As sovereignty disputes and development and utilization demands heat up in the East China Sea, South China Sea and other sea areas, the need to ascertain the situation of artificial offshore facilities in our waters is becoming ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/194G06V20/13G06V10/58G06V10/462
Inventor 陈进詹明刘翔畅磊陈东
Owner 北京市遥感信息研究所
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