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On-line digital holographic imaging reconstruction display system and method

A technology of digital holography and display system, applied in the direction of instruments, etc., can solve the problem that the imaging results of digital holographic imaging reconstruction process cannot be displayed online

Active Publication Date: 2013-07-03
BEIJING UNIV OF TECH
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Problems solved by technology

The digital holographic experimental system usually only includes the digital holographic recording optical system for recording object information, and cannot display the digital holographic imaging reconstruction process and its imaging results online

Method used

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  • On-line digital holographic imaging reconstruction display system and method
  • On-line digital holographic imaging reconstruction display system and method

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Embodiment Construction

[0021] Typical embodiments of the digital holographic imaging online reconstruction display system and method of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] Using transmission off-axis Fresnel digital holographic recording optical path, such as figure 1 As shown, the separation of +1 order diffraction image, 0 order diffraction image and -1 order diffraction image is realized. The laser light emitted by the laser 1 passes through the shutter 2 and irradiates the reflector 3, and the reflected light enters the beam expander and collimator 5 after being reflected by the reflector 4 to obtain a beam expander and collimated parallel beam; the parallel beam enters the beam splitting prism 6 , is split into two parallel beams of transmitted and reflected beams, where th...

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Abstract

The invention relates to an on-line digital holographic imaging reconstruction display system and method. According to the system and the method, a reconstruction imaging process can be orderly displayed by steps and selectively displayed. The system comprises an off-axis fresnel digital holographic recording light path, an instrument control unit and an imaging reconstruction display unit. The off-axis fresnel digital holographic recording light path is employed to record a digital hologram on an image collector under the control of the instrument control unit; the imaging reconstruction display unit is used for numerically simulating a diffraction imaging process of the digital hologram by a numerical reconstruction algorithm, performing operation prompting for a user through a human-machine interaction interface, receiving instruction input, displaying data, and displaying an image of each stage in the digital holographic imaging reconstruction process step by step on line; and therefore, imaging reconstruction of an original object is realized.

Description

technical field [0001] The present invention relates to a digital holographic imaging system and method, more specifically, the present invention relates to a digital holographic imaging online reconstruction display system and its method. Background technique [0002] Digital holography is based on the basic principle of optical holography. It uses photosensitive electronic imaging devices instead of optical holographic recording materials to record holograms, converts the recorded hologram intensity information into digital signals and stores them in the computer, and then uses computer simulation reference light to carry out holograms. Reproduce the imaging, so as to realize the full digitalization of the holographic recording and imaging reconstruction process. Off-axis Fresnel digital holographic imaging technology involves two parts: object information recording process and object imaging reproduction process. In the process of object information recording, interferen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/12G03H1/22
Inventor 江竹青王喆陈依菲陶世荃王大勇万玉红王云新
Owner BEIJING UNIV OF TECH
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