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Three-dimensional data reconstruction method based on liquid crystal hyperspectral computing imaging system

A technology for computational imaging, 3D data, applied in image data processing, computing, spectrometry/spectrophotometry/monochromator, etc.

Active Publication Date: 2020-06-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This invention gives a specific idea of ​​a three-dimensionally coded liquid crystal hyperspectral computational imaging measurement device and related measurement methods, but there is still a long way to go before realizing reconstruction using compressed sensing theory

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  • Three-dimensional data reconstruction method based on liquid crystal hyperspectral computing imaging system
  • Three-dimensional data reconstruction method based on liquid crystal hyperspectral computing imaging system
  • Three-dimensional data reconstruction method based on liquid crystal hyperspectral computing imaging system

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Embodiment Construction

[0037] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] figure 1 It is a block diagram of the three-dimensional data reconstruction method based on the liquid crystal hyperspectral computing imaging system of the present invention. In the present invention, the imaging process of the liquid crystal hyperspectral computing imaging system is mathematically modeled, the system imaging process is expressed in mathematical language, and the data acquisition process of the liquid crystal hyperspectral computing imaging system is converted into a matrix form by using the discretized representation of data , combined with the principle of compressed sensing, deduced how to reconstruct high-resolution 3D data from a small amount of data acquired by the system, and gave the reconstruction algorithm.

[0039] A three-dimensional data reconstruction method based on a liquid crystal hyperspectral computing imaging s...

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Abstract

The invention discloses a three-dimensional data reconstruction method based on a liquid crystal hyperspectral computational imaging system. The three-dimensional data reconstruction method comprisesthe steps of: modeling an imaging process of the liquid crystal hyperspectral computational imaging system, subjecting light intensity distribution obtained on an area array detector to discrete representation, and further converting a data acquisition process of the liquid crystal hyperspectral computational imaging system into a matrix form; and adopting a compressed sensing theory, and being capable of reconstructing a high-resolution target scene from small amount of observation data.

Description

technical field [0001] The invention relates to a three-dimensional data reconstruction method, in particular to a three-dimensional data reconstruction method based on a liquid crystal hyperspectral computing imaging system. Background technique [0002] Liquid crystal tunable filter is a kind of spectral filter device with tunable central wavelength, which has the advantages of fast tuning speed, convenient control, good imaging quality, small size, portable and low cost. Spectral imaging systems based on liquid crystal tunable filters have been widely used in many fields, such as aerial remote sensing, biomedicine, agricultural detection, etc. [0003] A spectral imaging system based on a liquid crystal tunable filter usually includes an imaging lens, a liquid crystal tunable filter, and an area array detector, capable of acquiring a three-dimensional data cube of the target scene, including two-dimensional spatial data and one-dimensional spectral data . When the syste...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28G06T17/00G06T9/00
CPCG01J3/2823G06F30/20G06T17/00
Inventor 许廷发王茜张宇寒徐畅樊阿馨余越
Owner BEIJING INSTITUTE OF TECHNOLOGYGY