SAR Image Segmentation Method Based on Ridgelet Filter and Deconvolution Structure Model

A structural model and image segmentation technology, applied in the field of image processing, which can solve the problems of independent target processing, poor regional consistency, and destroying the original structural information of the image.

Active Publication Date: 2019-05-21
XIDIAN UNIV
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Problems solved by technology

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
Although this method achieves unsupervised learning of image features, the disadvantage of this method is that when initializing the filter, the method of randomly initializing the ridgelet filter is used, and the structural information of the image is ignored, so that It will greatly reduce the accuracy of image segmentation
The shortcomings of this method are that the boundary positioning of the aggregated area is not precise enough, the determination of the number of homogeneous areas is not reasonable enough, the regional consistency of the segmentation results is poor, and the independent target is not processed in the segmentation of the structural area.

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  • SAR Image Segmentation Method Based on Ridgelet Filter and Deconvolution Structure Model

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Embodiment Construction

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

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

[0073] Step 1, SAR image sketching.

[0074] Input the synthetic aperture radar SAR image, sketch it, and get the sketch map of the synthetic aperture radar SAR image.

[0075] The first 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 to calculate the weighting coefficient of each point in the template, where the scales are The value ranges from 3 to 5, and the value ranges from 18 to the number of directions.

[0076] Step 2, according to the following formula, calculate the mean value and variance value of the pixels in the synthetic aperture radar SAR image corresponding to the position of the template ...

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Abstract

The invention discloses an SAR image segmentation method based on a ridge wave filter and a deconvolution structural model, mainly used for solving the problem that SAR image segmentation in the prior art is inaccurate. The SAR image segmentation method comprises the following implementation steps of: (1), sketching an SAR image so as to obtain a sketch image; (2), according to an area chart of the SAR image, dividing a pixel subspace of the SAR image; (3), constructing a ridge wave filter set; (4), constructing a deconvolution structural model; (5), segmenting a hybrid aggregation structured surface feature pixel subspace by adopting the SAR image segmentation method based on the ridge wave filter and the deconvolution structural model; (6), performing independent target segmentation based on the sketch line aggregation feature; (7), performing line target segmentation based on a visual semantic rule; (8), performing segmentation of a pixel subspace in a homogeneous area by adopting a polynomial-based logistic regression prior model; and (9), combining segmentation results so as to obtain an SAR image segmentation result. By means of the SAR image segmentation method disclosed by the invention, the good segmentation effect of the SAR image is obtained; and the SAR image segmentation method can be used for semantic segmentation of the SAR image.

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 deconvolution structure model in the technical field of target recognition. The invention can accurately segment the regions with different characteristics of 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 a very important advantage. It is not affected by atmospheric conditions such as clouds, rainfall or heavy fog, and light intensity, and can obtain high-resolution remote sensing data all day and all weather. SAR techno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11
CPCG06T2207/10044G06T2207/20024G06T2207/20081G06T2207/20084
Inventor 刘芳李婷婷王亚明焦李成郝红侠陈璞华马文萍马晶晶
Owner XIDIAN UNIV
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