SAR image segmentation method based on ridgelet filters and convolution structure model

A structure model and filter technology, applied in the field of image processing, can solve the problems of inaccurate SAR image segmentation results, poor regional consistency, and unreasonable determination of the number of homogeneous regions.

Active Publication Date: 2017-05-17
XIDIAN UNIV
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Problems solved by technology

However, the disadvantage of this method is that it does not introduce the high-level semantic knowledge of the SAR image, and only segments the SAR image at the pixel level, resulting in inaccurate SAR image segmentation results. At the same time, the support vector machine is a supervised method, requires a class
Although this method achieves the purpose of autonomous learning of image features, the disadvantage of this method is that for the convenience of processing, this method normalizes the input image, which destroys the original structure of the image. information
The disadvantage of this method is that the input of the dept

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[0071] The present invention will be further described below in conjunction with the accompanying drawings.

[0072] Refer to attached figure 1 , the concrete steps of the present invention are as follows.

[0073] Step 1, SAR image sketching.

[0074] For the input synthetic aperture radar SAR image, the sketch model is obtained according to the distribution characteristics of the SAR image.

[0075] According to the following steps, use the SAR image sketch model to perform sketch processing on the input synthetic aperture radar SAR image, and obtain the corresponding sketch map of the input synthetic aperture radar SAR image:

[0076] Step 1, within the range of [100,150], randomly select a number as the total number of templates;

[0077] The second step is to construct a template of edges and lines composed of pixels with different directions and scales, and use the direction and scale information of the template to construct an anisotropic Gaussian function, and calcu...

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Abstract

The invention discloses an SAR image segmentation method based on ridgelet filters and a convolution structure model. The SAR image segmentation method based on ridgelet filters and a convolution structure model mainly solves the problem that in the prior art, segmentation of SAR images is not accurate. The SAR image segmentation method based on ridgelet filters and a convolution structure model includes the following steps: 1) sketching an SAR image, and obtaining a sketch image; 2) according to an area image of the SAR image, dividing the pixel subspace of the SAR image; 3) constructing a ridgelet filter set; 4) constructing a convolution structure learning model; 5) utilizing the SAR image segmentation method based on the ridgelet filters and the convolution structure model to segment the pixel subspace of a hybrid aggregation structure natural object; 6) based on the gathering feature of sketch lines, performing segmentation of an independent object; 7) based on visual sense semantic rules, performing segmentation of line object; 8) based on polynomial logic regression prior model, segmenting the pixel subspace of a formal area; and 9) combining the segmentation results. The SAR image segmentation method based on ridgelet filters and a convolution structure model can acquire good segmentation effect of SAR images, and can be used for semantic segmentation of the SAR images.

Description

technical field [0001] The invention belongs to the technical field of image processing, and further relates to a synthetic aperture radar (SAR) image segmentation method based on a ridgelet filter and a convolution structure model in the technical field of target recognition. The invention can accurately segment the pixel subspace of mixed aggregation structures with different characteristics in the synthetic aperture radar SAR image, and can be used for target detection and recognition of the subsequent synthetic aperture radar SAR image. Background technique [0002] Synthetic aperture radar (SAR) is an important progress in the field of remote sensing technology, which is used to obtain high-resolution images of the earth's surface. Compared with other types of imaging technologies, SAR has the advantages of all-time, all-weather, multi-band, multi-polarization, variable side angle of view and high resolution. It can also collect subsurface information through the surfa...

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Application Information

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IPC IPC(8): G06T7/11
CPCG06T2207/10044G06T2207/30181
Inventor 刘芳李婷婷赵鹏焦李成郝红侠陈璞华马文萍马晶晶
Owner XIDIAN UNIV
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