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A full-color compression holographic imaging system and a reconstruction method

A holographic imaging, full-color technology, applied in the field of digital holography, to achieve good reconstruction effect and anti-interference ability, and reduce the effect of sampling rate

Active Publication Date: 2019-06-21
ANHUI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the three-dimensional color holographic reconstruction of the object has not really been realized.

Method used

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  • A full-color compression holographic imaging system and a reconstruction method
  • A full-color compression holographic imaging system and a reconstruction method
  • A full-color compression holographic imaging system and a reconstruction method

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Embodiment Construction

[0057] In order to further illustrate the features of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. The accompanying drawings are for reference and description only, and are not intended to limit the protection scope of the present invention.

[0058] Such as figure 1 As shown, this embodiment discloses a full-color compression holographic reconstruction method, including the following steps S1 to S3:

[0059] S1. Utilize a group of parallel light beams to irradiate a three-dimensional color object composed of L layers of images, wherein: the parallel light beams include three primary colors, L is a constant and L≥2;

[0060] S2. Using digital holographic imaging technology based on compressed sensing to obtain a hologram on the detector plane;

[0061] S3. Reconstruct the three-dimensional color object by using the hologram.

[0062] It should be noted that, in this embodiment, the sub-channel ...

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Abstract

The invention discloses a full-color compression holographic imaging system and a reconstruction method, which belong to the technical field of digital holography. The method includes the following steps of: irradiating a three-dimensional color object consisting of a plurality of layers of images by utilizing a group of parallel light beams which comprise red, green and blue three primary colors;Obtaining a hologram on a detector plane by utilizing a compressed sensing technology and a digital holographic technology, and transmitting the hologram to a computer; And processing the hologram, and reconstructing the three-dimensional color object. According to the method, the two-dimensional hologram is obtained from the three-dimensional color object by adopting the compressed holographic technology, the three-dimensional object corresponding to the hologram is obtained from the hologram by utilizing the two-step iterative shrinkage / threshold algorithm, and the reconstructed color three-dimensional object is high in speed and good in reconstruction effect.

Description

technical field [0001] The invention relates to the technical field of digital holography, in particular to a full-color compressed holographic imaging system and a reconstruction method. Background technique [0002] Digital holography technology is the combination of traditional optical holography technology and digital technology, which is mainly reflected in the use of charge coupled device (CCD) to replace the dry plate in optical holography to record the hologram on the computer, and replace it by computational simulation. Optical diffraction realizes the digital reproduction of the recorded object field and realizes the digitalization of hologram recording, storage, processing and reproduction. However, digital holography technology also has shortcomings. For example, the amount of data to be collected is relatively large, and the frequency width is relatively high. The emergence of compressed sensing technology has solved this problem well. [0003] In 2006, Candès,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00
Inventor 张成许海涛王美琴陈倩文韦穗
Owner ANHUI UNIVERSITY