A Group Target Detection Method Based on Electromagnetic Scattering Characteristics and Topological Configurations
A technology of electromagnetic scattering and detection method, applied in radio wave measurement systems, radio wave reflection/re-radiation, measurement devices, etc., can solve the problems of low accuracy and low target detection efficiency, and achieve the effect of improving accuracy
Active Publication Date: 2022-07-01
ROCKET FORCE UNIV OF ENG
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to solve the problems of low target detection efficiency and low precision in the above-mentioned existing group target detection and recognition technology, the purpose of the present invention is to propose a group target detection method based on electromagnetic scattering characteristics and topological configuration to improve target detection. Accuracy and Detection Efficiency
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
[0039] The important technical terms involved in the present invention are explained as follows:
[0040] 1. Dual-polarization SAR images: SAR (synthetic aperture radar) images with two polarization modes, such as HH (ie, horizontal emission, horizontal reception) polarization, and HV (ie, horizontal emission, vertical reception) polarization.
[0041] 2. CFAR algorithm: Constant False-Alarm Rate algorithm, constant false alarm rate detection algorithm.
[0042] 3. MRF algorithm: Markov Random Filed, Markov Random Field image segmentation algorithm.
[0043] 4. Multi-core DSP: Multi-core digital signal processor, typically TMS320C6678 (8 cores) from TI.
[0044] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the present invention is described in detail below with reference to the accompanying drawings.
[0045] The method for group target detection based on electromagnetic scattering featu...
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 invention discloses a group target detection method based on electromagnetic scattering characteristics and topological configuration: step 1, receiving a dual-polarization SAR image; step 2, obtaining a polarization-enhanced image; step 3, obtaining a mean filtering image; step 4, Select a segmentation algorithm, and use the selected segmentation algorithm to process the mean value filtered image obtained in step 3 to obtain a first binary image; step 5, perform MRF segmentation on the mean value filtered image to obtain a second binary image; step 6, to step 4. The obtained first binary image adopts the clustering method of first row and then column to perform target pixel clustering to obtain multiple single targets; step 7, obtain multiple single targets corresponding to the second binary image; step 8, obtain multiple single targets Target group; Step 9, select the target group with the largest confidence value as the detected target group. The invention can meet the requirements for high precision and real-time detection of group targets in SAR images in practical application scenarios.
Description
technical field [0001] The invention relates to the technical field of SAR image processing and target identification, in particular to a group target detection method based on electromagnetic scattering characteristics and topological configuration. Background technique [0002] SAR has the capability of all-weather and all-weather. It can not only obtain the image features such as the structure and shape of the target, but also obtain the electromagnetic scattering features such as the intensity and amplitude of the scattering point, and the available information is more abundant. Using SAR imaging to accurately identify group targets with significant electromagnetic scattering characteristics is of great significance for applications such as radar guidance. [0003] Due to the complex environmental background in practical application scenarios, typical scenarios include Gobi Desert, grassland, woodland, viaduct, buildings, etc., and group target detection and recognition ...
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): G06V20/10G06V10/25G06V10/28G06V10/36G06V10/762G06V10/84G06K9/62G01S13/04G01S7/41G01S13/90
CPCG01S13/04G01S13/9004G01S13/9094G01S7/414G06F18/23G06F18/295
Inventor 胡昌华许涛钟都都邬伯才竺红伟何川夏巍巍高超常沛吴涛
Owner ROCKET FORCE UNIV OF ENG