Single-photon spectral counting and imaging system and method for complementary measurement

A technology that complements measurement and imaging systems. It is used in spectrum surveys and other directions, and can solve problems such as poor reconstruction accuracy, dimensional scanning, and insensitivity to extremely weak light.

Active Publication Date: 2014-09-03
NAT SPACE SCI CENT CAS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of dimension scanning, poor reconstruction accuracy and insensitivity to extremely weak light in conventional spectral imaging methods in order to achieve the goal of simultaneously analyzing the spectral components of visible light and near-infrared light of the observed object, thereby providing a Single-photon spectral counting imaging system and method for complementary measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Single-photon spectral counting and imaging system and method for complementary measurement
  • Single-photon spectral counting and imaging system and method for complementary measurement
  • Single-photon spectral counting and imaging system and method for complementary measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] A complementary measurement single-photon spectral counting imaging system proposed by the present invention is characterized in that the complementary measurement single-photon spectral counting imaging system adopts compressed sensing theory, complementary measurement technology and spectral spectroscopy technology, and uses visible light single-photon detection. The linear array of detectors and the linear array of near-infrared light single-photon detectors are used as detection elements to perform single-photon multispectral counting imaging, output color images of visible light and near-infrared light, and perform related spectral analysis;

[0057] The single-photon spectral counting imaging system for complementary measurement includes: an optical imaging component, a spatial light modulator, two light-receiving and collimating components, two s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a single-photon spectral counting and imaging system and method for complementary measurement. According to the system, a plurality of single-photon dot detection units corresponding to different wavelengths are respectively selected in a visible range and a near infrared range so as to form two linear arrays which are distributed in exit directions of two arms of a spatial light modulator together with a spectral light splitter. The method comprises the following steps that: the spatial light modulator reflects the light imaged on the spatial light modulator to the two arms and respectively collimates and splits the light, visible spectrum is taken by one arm, and near infrared spectrum is taken by the other arm, so that the light can be detected by the corresponding linear array of the single-photon detector. According to the wavelength information corresponding to a complementary matrix, count values and a channel, visible and near infrared color images can be rebuilt with a related compressed sensing algorithm and a spectrogram for wavelength-optical power can be counted for spectral analysis. The system and the method disclosed by the invention solve the problem that the existing imaging spectrograph cannot simultaneously detect spectra of the visible light and the near infrared light, and have the advantages of low dimension, high flux, high sensitivity, high resolution and the like.

Description

technical field [0001] The invention relates to the technical field of extremely weak light imaging spectroscopy, in particular to a complementary measurement single photon spectral counting imaging system and method. Background technique [0002] In emerging high-tech fields such as spectral imaging measurement analysis, biological detection, starry sky detection, night vision observation, extremely weak light detection, concentration detection, remote sensing imaging, medical imaging, monitoring, etc., it is not only necessary to detect extremely weak light, but also to detect several spectral The component distribution analysis of the wavelength band, and the imaging spectral detection of visible light can no longer meet the demand, scientists need to know the spectral information of the near-infrared light band more often. In addition, the existing imaging spectroscopic instruments are not sensitive to extremely weak light, and most of them adopt the scanning method, whi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
Inventor 翟光杰王超赵清俞文凯刘雪峰
Owner NAT SPACE SCI CENT CAS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products