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Spectral acquisition method, device and system based on dmd and single-point detector

A single-point detector and acquisition device technology, which is applied in the field of spectrum acquisition based on DMD and single-point detectors, can solve the problems of introducing mechanical transmission devices and increasing time costs, and achieve cost reduction, low price, and improved acquisition efficiency. Effect

Active Publication Date: 2018-01-16
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of mechanical transmission and the increase of time cost make this technical solution not an excellent solution

Method used

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  • Spectral acquisition method, device and system based on dmd and single-point detector
  • Spectral acquisition method, device and system based on dmd and single-point detector
  • Spectral acquisition method, device and system based on dmd and single-point detector

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] The spectrum acquisition method, device and system based on a digital micromirror DMD and a single-point detector according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0033] figure 1 It is a flowchart of a spectrum acquisition method based on a digital micromirror DMD and a single-point detector according to an embodiment of the present invention. Such as figure 1 As shown, the spectrum acquisition method may include:

[0034] S101. Obtain a pre-gener...

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Abstract

The invention discloses a spectrum obtaining method, device and system based on a DMD and a single-point detector, and the method comprises the steps: obtaining a rotator image generated in advance, and loading the rotator image through the DMD, wherein the DMD comprises an M*N micro-reflector array, and M and N are positive integers; controlling the on / off of M columns of micro-reflectors in the M*N micro-reflector array according to the rotator time interval of the rotator image, and capturing an output signal of the single-point detector in a timing manner, so as to obtain the corresponding relation between the light intensity of a spectrum and the M columns of micro-reflectors; employing a series of monochromatic light for calibration, so as to obtain the wavelength range of light reflected by each column of micro-reflectors in the DMD; and plotting a spectrum curve according to the corresponding relation between the light intensity of the spectrum and the M columns of micro-reflectors and the wavelength range of light reflected by each column of micro-reflectors. The method greatly reduces the cost in spectrum obtaining, does not need manual operation in the whole process, and greatly improves the obtaining efficiency.

Description

technical field [0001] The present invention relates to the field of hyperspectral data acquisition, in particular to a spectrum acquisition method, device and system based on a DMD (Digital Micro mirror Device, digital micro mirror) and a single-point detector. Background technique [0002] At present, hyperspectral imaging technology can obtain more information than traditional imaging technology, and using this information can solve problems that traditional imaging data cannot handle. Most current imaging photography technologies record scene images based on red, green, and blue three-color information. Although three-color sensing imaging technology meets the imaging requirements of the human visual system, from the perspective of physical principles, real scenes are not Only three-color information is so simple. The light emitted from the light source or reflected by the object has abundant wavelengths, among which the infrared light covers a wide area from 780nm to 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
CPCG01J3/28
Inventor 戴琼海李菲菲张晶王好谦
Owner TSINGHUA UNIV