Compressive sensing theory-based digital holographic imaging device and imaging method

A technology of compressed sensing and digital holography, which is applied in the direction of instruments, etc., can solve problems such as experimental result errors and area array imaging difficulties, and achieve the effects of low cost, high sensitivity, and wide imaging band

Inactive Publication Date: 2015-03-11
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

However, due to the limitation of the device structure, the existing superconducting single photon detectors have some difficulties in area array imaging
[0005] In addition, the current compression hologr

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  • Compressive sensing theory-based digital holographic imaging device and imaging method
  • Compressive sensing theory-based digital holographic imaging device and imaging method
  • Compressive sensing theory-based digital holographic imaging device and imaging method

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Embodiment Construction

[0034] see figure 1 , which is a structural block diagram of the digital holographic imaging device based on the compressive sensing theory of the present invention. The digital holographic imaging device 100 based on compressed sensing theory includes an image generation module 110 , an image acquisition module 120 , an image processing module 130 , an image transmission module 140 and an image storage module 150 .

[0035] The image generation module 110 generates a holographic image, and the image acquisition module 120 collects the image and transmits the image data to the image processing module 130, and the image processing module 130 performs reconstruction imaging of a 3D object on the image data, and then passes The transmission module 140 transmits to the storage module 150 for storage. Wherein, the image generating module 110 is a Mach-Zehnder interferometer.

[0036] Please also see figure 2 and image 3 ,in, figure 2 for figure 1 A structural block diagram...

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Abstract

The invention relates to a compressive sensing theory-based digital holographic imaging device which comprises an image generation module, an image acquisition module and an image processing module, wherein the image generation module is used for generating a holographic image; the image acquisition module is used for acquiring the image, and transmitting image data to the image processing module; the image processing module is used for performing 3D (three-dimensional) object reconstruction imaging on the image data; the image acquisition module comprises a digital micro-mirror device for acquiring and compressing the holographic image generated by the image generation module so as to generate a compressed holographic image, a lens for converging an interference holographic image, a single-photon detector for acquiring an optical signal of the interference holographic image and an A/D (analogue/digital) converter for converting the optical signal to a digital signal. The invention also provides a compressive sensing theory-based digital holographic imaging method.

Description

technical field [0001] The invention belongs to the field of digital holographic imaging, and in particular relates to a digital holographic imaging device and a detection method based on compressed sensing theory. Background technique [0002] The holographic imaging method has the characteristics of recording and reproducing the phase and complex amplitude information of the object, especially for the imaging of 3D objects and 3D scenes in the real world. Digital holography uses a photoelectric sensing device (such as CCD or CMOS) instead of a dry plate to record a hologram, then stores the hologram in a computer, and uses a computer to simulate the optical diffraction process to realize the holographic reproduction and processing of the recorded object. [0003] Compared with traditional optical holography, digital holography has the advantages of low production cost, fast imaging speed, flexible recording and reproduction, etc. However, in the past few years, the huge b...

Claims

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Application Information

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IPC IPC(8): G03H1/12G03H1/22
Inventor 李军潘阳阳李娇声朱露露李俞莹陈晓东李榕
Owner SOUTH CHINA NORMAL UNIVERSITY
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