Remote sensing detection method based on optimal scale for high-resolution SAR (synthetic aperture radar)

A synthetic aperture radar, the best scale technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problem of low accuracy, no consideration of the consistency of the detection target object homogeneity, mark point search efficiency Inefficient and other issues, to achieve the effect of ensuring extraction accuracy and avoiding complex calculations

Inactive Publication Date: 2014-01-22
HOHAI UNIV
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Problems solved by technology

However, the acquisition of marker points often requires scanning every pixel of the entire image, and does not take into account the internal homogeneity of the target object itself. The marker point search efficiency is low and the accuracy is not high.

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  • Remote sensing detection method based on optimal scale for high-resolution SAR (synthetic aperture radar)
  • Remote sensing detection method based on optimal scale for high-resolution SAR (synthetic aperture radar)
  • Remote sensing detection method based on optimal scale for high-resolution SAR (synthetic aperture radar)

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0025] control figure 1 , the present invention takes the complex and high-resolution SAR image river channel extraction process as an example to illustrate the implementation of the present invention.

[0026] control figure 2 , the original image is the SAR image of TerraSAR-X in Rosenheim, the spatial resolution is 1.7m, and the experimental platform is MATLAB7.11.0 platform. The images have rich spatial information, complex backgrounds, target types including play...

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Abstract

The invention discloses a remote sensing detection method based on an optimal scale for a high-resolution SAR (synthetic aperture radar). The method comprises the following steps of: obtaining relevant priori knowledge of a target characteristic, denoising a tower-shaped direction filter based on coefficient relativity between scales, obtaining a mark point counted by a block histogram based on the optimal scale, dividing a watershed based on the mark point and combining a plurality of constrained regions. According to the remote sensing detection method disclosed by the invention, the region in which a target possibly exists can be rapidly and accurately positioned, the complexity of training a sample is low, and the edge detail of the target is kept while noises are inhibited, so that a target outline can be effectively extracted and the remote sensing detection method has the advantages of good feasibility and good effectiveness.

Description

technical field [0001] The present invention relates to a high-resolution synthetic aperture radar (Synthetic Aperture Radar, SAR) remote sensing detection method based on the optimal scale, which can quickly locate the area where a certain target may exist from a high-resolution SAR image, and then accurately detect the target and Extract its contour, especially a SAR image target detection method based on tower-shaped directional filter bank (contour wave) denoising and optimal scale block histogram statistics. Background technique [0002] Synthetic Aperture Radar (SAR) images have the characteristics of all-weather and all-time imaging, geometric resolution is independent of the wavelength and height of the sensor, and can effectively reveal ground camouflage and landform structures. At present, SAR imaging technology has been widely used in hydrological science, ecological science, marine science, military reconnaissance and many other fields. [0003] At present, with...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/32
Inventor 王超徐立中石爱业黄凤辰汤敏徐枫高红民马文汤晓斌
Owner HOHAI UNIV
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