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A Method for Automatic Recognition of Corner Reflectors

A corner reflector, automatic identification technology, applied in image analysis, instruments, calculations, etc., can solve problems such as confusion, reduced target recognition accuracy, overlapping of ship and corner reflector features, etc. , the effect of simple processing

Active Publication Date: 2020-03-27
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Problems solved by technology

However, there are uncertainties in the type, shape, size, and orientation of ship targets at sea, and there are various combinations of corner reflectors, which may cause overlapping and confusion, thereby reducing the accuracy of object recognition

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  • A Method for Automatic Recognition of Corner Reflectors
  • A Method for Automatic Recognition of Corner Reflectors
  • A Method for Automatic Recognition of Corner Reflectors

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] For the problem that precise strikes on maritime targets are easily interfered by corner reflectors, it is necessary to provide a feasible and universal discrimination method to distinguish targets from corner reflectors. The invention starts from the imaging characteristics of the corner reflector itself, provides a new angle and technical approach, and realizes the judgment of the sea target by studying the extraction and identification technology of the corner reflector, so as to achieve the purpose of anti-jamming.

[0038] A method for automatically identifying a corner reflector, the method comprising:

[0039] Step 1: Input the image of interest to be processed;

[0040] Step 2: Obtain the sobel horizontal gradient information and binarize it to form a feature binary image;

[0041] Step 3: O...

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Abstract

The invention relates to the field of target identification and anti-interference technologies, in particular to an automatic identification method for a corner reflector. The method includes the steps that firstly, the sobel horizontal gradient is calculated for an input interest image region, and feature binarization processing is carried out; secondly, the imaging size of the corner reflector is obtained by using prior information, and a potential region with largest gradient information is searched for on a feature binary image through a sliding window and is enlarged in a certain range; thirdly, a window template is designed, and regions meeting inner and outer region feature point distribution conditions are traversed and counted to serve as segmentation extraction results of the corner reflector; finally, angle histogram statistics is carried out on a segmentation extraction result diagram, and if the certain conditions are met, it is judged that the diagram serves as the cornerreflector. According to the method, imaging features of the corner reflector are used, segmentation extraction and identification of images of the corner reflector under certain distance conditions are achieved, and whether the corner reflector exists in a positioning area or not can be effectively judged. The processing process is simple, the calculation amount is small, engineering applicationis flexible, and implementation is convenient.

Description

technical field [0001] The invention relates to the technical field of target recognition and anti-jamming, in particular to an automatic recognition method for a corner reflector. Background technique [0002] In the military field, the identification and tracking technology of maritime targets may be interfered by corner reflectors, making it impossible for missile systems to accurately monitor and strike effective targets. As one of the main interference methods in naval warfare, corner reflectors usually present radar and imaging characteristics similar to ship targets, which brings great difficulties to target precise strikes. Therefore, in-depth research on the characteristics of corner reflectors and improving the anti-jamming ability of missiles are hot and difficult issues in the field of naval applications. [0003] At present, the research of anti-jamming technology mainly focuses on the identification and classification of ship targets, trying to find the discri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/00G06T7/60
CPCG06T7/0008G06T7/11G06T7/60
Inventor 张品张立平孙长燕孟祥杰
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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