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Condition part measuring associated imaging method based on compressive sensing

A technology of compressed sensing and correlated imaging, applied in measurement devices, radio wave measurement systems, and re-radiation of electromagnetic waves, etc., can solve the problems of large physical storage required, large amount of data, and long reconstruction time.

Inactive Publication Date: 2014-02-05
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, although the recovery of image information in the conditional partial measurement method has reduced the number of measurements compared with the common correlation imaging method, it still faces problems such as large data volume, long reconstruction time, and more physical storage required

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  • Condition part measuring associated imaging method based on compressive sensing
  • Condition part measuring associated imaging method based on compressive sensing
  • Condition part measuring associated imaging method based on compressive sensing

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing, the patent of the present invention is described in further detail.

[0050] In order to verify the conditional partial measurement correlation imaging method based on compressed sensing proposed by the present invention, the verification is now carried out through numerical simulation. The wavelength of the pseudothermal light source used in this simulation is λ=633nm Gaussian light. In order to describe the performance of the CCPMGI imaging method more objectively and accurately, the present invention introduces a mean square error parameter (mean square error, MSE), which indicates the degree of deviation between the restored image and the target object. For a target object of size M×N, MSE is defined as:

[0051] MSE ( X i , j , X i ...

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Abstract

The invention discloses a condition part measuring associated imaging method based on compressive sensing. According to the method, the compressive sensing (CS) is combined with the associated imaging method based on condition part measurement. On one hand, part condition measurement is adopted in the method, restored imaging data are reduced into a half of traditional associated imaging rebuilt data, and positive images and negative images can be given at the same time, and on the other hand, an advanced signal processing method (the compressive sensing) is used to rebuild image information of an object, so that less measuring data can be used to obtain the image information of the object through a convex optimal solution. Consequently, the method reduces imaging restoration time, improves imaging quality, and provides reference for practical associated imaging.

Description

technical field [0001] The invention relates to an implementation method of an associated imaging method based on compressed sensing, and the research content belongs to the technical fields of communication signal processing and quantum optics intersection. Background technique [0002] Correlation imaging, also known as "ghost" imaging (Ghost imaging, GI), is a new imaging method gradually developed in the 1990s, which can provide a method that is difficult to obtain clear images by conventional means, and can solve Some problems that are not easily solved by conventional imaging technology can be applied to various fields such as satellite remote sensing, lidar, medical imaging, military, industrial imaging, and deep space exploration, and have broad application prospects. When traditional correlation imaging is implemented, there are problems such as high sampling times, long imaging time, and imaging quality that needs to be improved. Obtaining a new correlative imagin...

Claims

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Application Information

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IPC IPC(8): G01S17/89
CPCG01S17/89G01S7/4802
Inventor 赵生妹陈超庄鹏巩龙延白旭
Owner NANJING UNIV OF POSTS & TELECOMM
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