Digital zooming spectrum imager based on self-adaptive micro-lens array sensor

A technology of a microlens array and a spectral imager, which is applied in the field of spectral imaging, can solve the problems of distortion, large-scale spectral imaging dispersion effects, and low resolution, and achieves the effect of improving digital zoom performance.

Active Publication Date: 2016-07-27
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0003] The current spectral imaging system has the problems of low definition, distortion, and dis...

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  • Digital zooming spectrum imager based on self-adaptive micro-lens array sensor
  • Digital zooming spectrum imager based on self-adaptive micro-lens array sensor
  • Digital zooming spectrum imager based on self-adaptive micro-lens array sensor

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Embodiment

[0029] Such as figure 1As shown, a digital zoom spectrum imager based on an adaptive microlens array sensor of the present invention includes an electronically controlled bandpass filter 2, an optical imaging lens 3, an adaptive microlens array sensor 4, and an image acquisition and processing terminal 5, wherein the adaptive microlens array sensor 4 is made up of an adaptive microlens array 401 and a surface imaging detector 402, the number of microlens units of the adaptive microlens array 401 is M*N, and the adaptive microlens array 401 and the traditional The surface imaging detector 402 is combined to form a new type of surface imaging detector. The number of pixels of the surface imaging detector 402 is KM*KN. While recording the original spectral image information, the spatial resolution of the spectral image is M*N , can also record the spatial frequency light field information of each spectral image pixel, the light field information is recorded by each K*K array sub-...

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Abstract

The invention discloses a digital zooming spectrum imager based on a self-adaptive micro-lens array sensor.The digital zooming spectrum imager comprises an electronic control band-pass light filter, an optical imaging lens, the self-adaptive micro-lens array sensor, a chromatic dispersion self-adaptive imaging controller and an image collecting and processing terminal.According to the imager, while the spectrum image timing sequence scanning of a spectrum imaging system is performed, spatial frequency light field information of each spectrum image is obtained, the digital zooming function of carrying out zooming after exposure imaging is carried out is achieved, self-adaptive achromaticity is carried out, the digital zooming performance is improved, the chromatic dispersion influence caused by large-range spectrum scanning is eliminated to the greatest extent, acquisition of spectrum image information of a complex landform can be ensured to the greatest extent, when the complex landform is probed in a remote sensing mode, the more distinct image information and the more accurate spectrum information can be obtained, and the main function and the application range of an existing spectrum imager are expanded.

Description

technical field [0001] The invention relates to the technical field of spectral imaging, in particular to a digital zoom spectral imager based on an adaptive microlens array sensor. Background technique [0002] The spectral imaging system can acquire the image and spectral information of the target at the same time. It is an optical sensor with "complete performance" and integrated map and spectrum. The current spectral imager can already realize multiple adjustable bands, strong spectral resolution and high spatial resolution. Advantages, it is suitable for airborne and spaceborne remote sensing fields such as staring imaging, and provides relevant departments with new technical means for mineral resource exploration, biomedical diagnosis, and agricultural pest monitoring. However, in actual remote sensing applications, due to the uneven distribution of remote sensing objects, in order to obtain clear remote sensing images, it is necessary to perform zoom control according...

Claims

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Application Information

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IPC IPC(8): G01J3/28
CPCG01J3/2823
Inventor 赵祥杰沈志学段佳著曾建成乔冉黄立贤骆永全王海峰刘海涛
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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