A SAR image coherent speckle filtering and target detection integration method and device
A target detection and coherent speckle technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of limiting the optimization and improvement of target detection performance, lack of guidelines, etc., and achieve good coherent speckle filtering performance and target detection performance effect
Active Publication Date: 2022-08-02
NAT UNIV OF DEFENSE TECH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the actual target detection application, there is a lack of guidelines in theory and practice to select a suitable coherent speckle filtering method, which limits the optimization and improvement of target detection performance to a certain extent, and is a problem faced in the process of SAR information processing.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0047] The integrated method for SAR image coherent speckle filtering and target detection provided in this application can be applied to a terminal. Wherein, the terminal may be, but is not limited to, various computers, notebook computers, smart phones, tablet computers and portable wearable devices.
[0048] In one embodiment, as figure 1 As shown, an integrated method for SAR image coherent speckle filtering and target detection is provided, and the method is applied to a terminal as an example to illustrate, including the following steps:
[0049] Step 102, acqu...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present application relates to an integrated method and device for SAR image coherent speckle filtering and target detection. The method includes: acquiring a SAR image, extracting at least 4 n-dimensional vectors according to an n×n neighborhood corresponding to a pixel in the SAR image, constructing a corresponding covariance matrix according to the n-dimensional vectors, and according to at least 4 The covariance matrices are averaged to obtain the context covariance matrix of the pixel point. According to the context covariance matrix, the similar pixel points similar to the pixel point are matched in the preset P×Q neighborhood of the pixel point, and similar pixels are established. For the pixel set of the point, the coherent speckle filter is performed according to the mean value of the similar pixels in the pixel set, and the target detection is performed according to the number of similar pixels in the pixel set. By adopting the method, coherent speckle filtering and target detection can be integrated.
Description
technical field [0001] The present application relates to the field of synthetic aperture radar (SAR) imaging remote sensing technology, and in particular, to a method, device, computer equipment and storage medium for integrating coherent speckle filtering and target detection in SAR images. Background technique [0002] SAR is an important earth observation imaging system, which has important application value in target detection and other fields. As a coherent imaging system, there are obvious coherent speckles in SAR images, which increases the difficulty of SAR image interpretation and application to a certain extent. In the existing SAR information processing flow, in order to avoid the influence of coherent speckle phenomenon on subsequent applications including target detection, coherent speckle filtering is a necessary preprocessing process. [0003] In the existing SAR information processing flow, coherent speckle filtering and target detection are usually two ind...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10044G06V2201/07G06T5/70
Inventor 陈思伟王雪松肖顺平崔兴超符婷段颜翠
Owner NAT UNIV OF DEFENSE TECH