A 3D imaging method based on multi-view imaging

A three-dimensional imaging, multi-view technology, applied in the field of radar, can solve the problems of reduced resolution, high resolution, unfavorable image processing and target feature extraction, etc., to achieve the effect of solving reduced resolution, accurate and comprehensive information

Active Publication Date: 2019-04-30
BEIJING HUAHANG HAIYING NEW TECH DEV
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Problems solved by technology

This imaging method has the following disadvantages: the resolution of the pixels in the middle part of the image is high, while the resolution of the edge part will decrease, and 360-degree full-resolution three-dimensional imaging cannot be realized, which truly reflects the information of the target, which is not conducive to subsequent image processing and target feature extraction

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Embodiment Construction

[0039] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] The present invention transforms the three-dimensional echo data after de-frequency modulation into the frequency domain, interpolates the data into the same Cartesian coordinate system in the frequency domain, and completes zero padding, interpolation and windowing operations in different regions, and then sums to complete multiple Fusion processing of angle three-dimensional data, the three-dimensional fusion data contains three-dimensional information of multiple perspectives.

[0041] figure 1 It is a flow chart of the method of the present invention.

[0042] A three-dimensional imaging method based on multi-view imaging, said method comprising the steps of:

[0043] Step 1: Generate N three-dimensional images of different angle ranges under the same Cartesian coordinate system;

[0044] 1.1 First obt...

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Abstract

The invention provides a three-dimensional imaging method based on multi-perspective imaging. The method includes the steps of firstly, generating N three-dimensional images of different angle ranges under the same Cartesian coordinate system; secondly, generating N window functions corresponding to the N three-dimensional images, and converting the N window functions from a cylindrical coordinate system into the Cartesian coordinate system; thirdly, respectively correspondingly multiplying the N three-dimensional images and the N window functions, and performing summation to obtain human body three-dimensional imaging data. The three-dimensional imaging method has the advantages that the 360-degree full-resolution three-dimensional imaging method is provided, a three-dimensional image contains 360-degree target information, the problem of resolution lowering of edge images is solved effectively, and rich, accurate and comprehensive information is provided for subsequent image processing.

Description

technical field [0001] The invention relates to the field of radar technology, in particular to a three-dimensional imaging method based on multi-view imaging. Background technique [0002] With the rapid development of radar imaging technology, the radar detection mode has gradually developed from the previous one-dimensional ranging to two-dimensional ranging angle measurement, synthetic aperture radar imaging (SAR), interferometric SAR, and three-dimensional planes with high resolution capabilities. Aperture 3D imaging and cylindrical aperture 3D imaging and other modes. In order to meet the increasingly urgent civilian and military needs, the detection accuracy of radar is getting higher and higher, and the imaging level is close to the optical level. [0003] The current cylindrical scanning imaging has gradually become the mainstream technology for human security inspection, and imaging is mostly carried out in the spatial domain or frequency domain. This imaging met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/89G01S7/41
CPCG01S7/41G01S13/89
Inventor 任百玲胡麟潘春云李宏伟白永科郑文谦
Owner BEIJING HUAHANG HAIYING NEW TECH DEV
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