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Single-pixel ultraviolet polarization imaging method and system

A polarization imaging, single-pixel technology, applied in the field of optical imaging, can solve the problems of limited application scope, difficult manufacturing process of ultraviolet imaging system, and large amount of data stored in imaging principle.

Active Publication Date: 2020-10-30
重庆太赫兹科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the manufacturing process of the existing ultraviolet imaging system is difficult, the overall system cost is high, the storage data of the imaging principle used is large, and its application range is limited. The purpose is to provide a single-pixel ultraviolet spectrum The polarization imaging method and system, using the compressed sensing theory, compresses and encodes the image or spectral information, and only uses a single-pixel ultraviolet detector to obtain the two-dimensional polarization image or spectral information of the target, which solves the problem of high cost of ultraviolet detection devices and imaging problems. The problem of slow speed and large amount of stored data

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  • Single-pixel ultraviolet polarization imaging method and system

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Embodiment 1

[0025] Such as figure 1 As shown, Embodiment 1 is a single-pixel ultraviolet spectrum polarization imaging system, which aims to solve the problems of high cost, slow imaging speed and large amount of stored data of current ultraviolet detection devices. The imaging system of Embodiment 1 includes in turn: an ultraviolet light source, a filter unit, a first lens, an imaging target, a second lens, a spatial light modulation module, a third lens, a polarization unit, an ultraviolet detection module, and an ultraviolet detection module, data acquisition The module and the image restoration module are connected in sequence. The control module is connected to the spatial light modulation module and the data acquisition module, and the control module controls the spatial light modulation module and the data acquisition module. Both the control module and the image restoration module are realized by a computer.

[0026] First, the ultraviolet light source emits stable broad-spectru...

Embodiment 2

[0034] Embodiment 2 is a single-pixel ultraviolet polarization imaging system based on Embodiment 1. The ultraviolet light source projects ultraviolet light of different bands onto the target through a spectroscopic device (ie, a filter), and the space carried by the reflected light of the target After the spectral information is encoded and compressed by DMD, the target information is coupled to the single-pixel ultraviolet detector through lens aggregation and ultraviolet polarization, and then the electrical signal obtained after photoelectric conversion undergoes digital-to-analog conversion and data acquisition. Strong and time-sequence encoded signals are decoded, and image compression and restoration algorithms are used to decode and restore images and extract spectral information by software and hardware.

[0035] The model of the DMD sampled in Example 2 is DLP7000UV with a resolution of 1024*768, which is suitable for the application of ultraviolet light sources with ...

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Abstract

The invention discloses a single-pixel ultraviolet spectrum polarization imaging method and system. The system includes an ultraviolet light source, the ultraviolet light source sequentially passes through a filtering unit, a first lens, an imaging target, a second lens, a spatial light modulator, a third lens, a polarization unit and a single-pixel ultraviolet detection module; the single-pixel ultraviolet detection module, the data acquisition module and the image restoration module are connected in sequence, the control module, the data acquisition module and the spatial light modulator areconnected, and the control module is used for controlling the spatial light modulator and the data acquisition module. According to the invention, a compressed sensing theory is applied; an image orspectral information is compressed and coded, and the two-dimensional polarization image or spectral information of the target can be obtained only by using the ultraviolet detector with a single pixel, so that the problem of data transmission caused by high price and large storage data volume of the existing ultraviolet imager is solved, and a new scheme is provided for realizing ultraviolet polarization imaging.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a single-pixel ultraviolet spectrum polarization imaging method and system. Background technique [0002] Ultraviolet imaging technology has important application requirements and research value. The manufacturing process of the ultraviolet array detector device used in the existing ultraviolet imaging system is difficult, resulting in high overall system cost, the imaging principle used has a large amount of stored data, and its application range is limited. Compared with the traditional ultraviolet imager, the single-pixel ultraviolet spectral imaging technology has a relatively simple detection device process and low imaging system cost. At present, single-pixel imaging technology has made great progress in the visible light and infrared bands and has achieved a certain degree of engineering application. In the ultraviolet band, there is not much substantive progress in the re...

Claims

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Application Information

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IPC IPC(8): G01J1/42G01J1/04
CPCG01J1/0429G01J1/429
Inventor 马勇潘武王玺张振何金橙杨力豪刘艺杨龙亮
Owner 重庆太赫兹科技发展有限公司