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A method and device for processing polarimetric synthetic aperture radar images

A technology of synthetic aperture radar and processing method, which is applied in the field of image processing and can solve problems such as failure and deterioration of effect.

Active Publication Date: 2016-12-07
中科卫星山东科技集团有限公司
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Problems solved by technology

The traditional use of PolSAR images to extract landslide information mainly uses the backscattering characteristics of the target area, polarization target decomposition information, and target structure information. A large number of shadows and overlays, coupled with the diversity of ground object types, lead to poor or even complete failure of traditional methods of extracting landslide information

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  • A method and device for processing polarimetric synthetic aperture radar images
  • A method and device for processing polarimetric synthetic aperture radar images
  • A method and device for processing polarimetric synthetic aperture radar images

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Embodiment Construction

[0053] In order to understand the characteristics and technical content of the present invention in more detail, the implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the present invention.

[0054] figure 1 It is a schematic flow chart of a PolSAR image processing method in an embodiment of the present invention, and the PolSAR image processing method in this example is applied to a PolSAR image processing device; as figure 1 Shown, the processing method of described PolSAR image comprises the following steps:

[0055] Step 101: Decompose and transform the color space of the original PolSAR image to obtain an S-channel image, an H-channel image, and an I-channel image.

[0056] Preferably, the decomposing and color space conversion of the original PolSAR image includes:

[0057] Decomposing the original PolSAR ima...

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Abstract

The invention discloses a PolSAR image processing method and device. The PolSAR image processing method includes: decomposing the original PolSAR image and converting the color space to obtain an S-channel image, an H-channel image, and an I-channel image; Filtering and K-means clustering of the S-channel image to extract a first region from the S-channel image; based on the first region, filtering and K-means clustering of the H-channel image to extract from the Extract the second region from the H channel image; based on the second region, filter and K-means cluster the I-channel image, and perform morphological filtering on the I-channel image after the K-means cluster; according to the region attribute parameter A third region is determined from the morphologically filtered I-channel image.

Description

technical field [0001] The present invention relates to an image processing technology in a synthetic aperture radar (SAR, Synthetic Aperture Radar), in particular to a method and device for processing a polarimetric synthetic aperture radar (PolSAR, (Polarimetric Synthetic Aperture Radar) image. Background technique [0002] Landslides are one of the major natural disasters. Landslides can cause changes in the natural environment while causing damage to houses, buildings, vehicles, and other facilities. In addition, some landslides can form dams on rivers, causing rivers to be blocked, such as dams Lakes, etc., and then form serious secondary disasters. Therefore, it is of great significance to quickly detect landslides and obtain their distribution information for the rescue of disaster areas and the elimination of secondary disasters. [0003] Because SAR has the advantages of all-day, all-weather and long-distance observation, SAR has been widely used in disaster monito...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/60G06T5/00G06K9/46G06V10/34G06V20/13
CPCG01S7/025G01S7/062G01S13/9076G06V20/13G06V10/34G06V10/763G06F18/23213
Inventor 李宁王宇邓云凯刘亚波龚小冬
Owner 中科卫星山东科技集团有限公司
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