Secondary acousto-optic tunable filter hyperspectral imaging method and device

An imaging method and hyperspectral technology, applied in optics, spectrum investigation, nonlinear optics, etc., can solve the problems of complex structure, bulky, restricting the rapid development and wide application of hyperspectral imaging technology, to improve light collection ability, The effect of high-precision spectral image data acquisition

Inactive Publication Date: 2012-02-15
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The hyperspectral imaging system is an important means for humans to observe and understand the world. The traditional hyperspectral imaging system relies on mec

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  • Secondary acousto-optic tunable filter hyperspectral imaging method and device
  • Secondary acousto-optic tunable filter hyperspectral imaging method and device
  • Secondary acousto-optic tunable filter hyperspectral imaging method and device

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Embodiment Construction

[0018] Step 1: Start the computer, open the control and management software. The system completes the self-test;

[0019] Step 2: Select the target and adjust the optical system so that the system can image clearly;

[0020] Step 3: According to the spectral range and spectral accuracy to be measured, two sets of ultrasonic frequencies are given;

[0021] Step 4: Obtain a clear, high-resolution spectral image of the target;

[0022] Step 5: Store and analyze the spectral image.

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Abstract

The invention relates to a secondary acousto-optic tunable filter hyperspectral imaging method and a device, and belongs to the technical field of optical remote sensing imaging. A high-resolution spectral image of a target to be tested can be taken at visible and near infrared wave bands, and the identification and analysis of the feature and characteristics of the target are realized. The invention is characterized in that: the optical imaging technology and a secondary acousto-optic tunable filter part are organically combined, two acousto-optic tunable filters are used as light splitting elements for spectral imaging and are connected in series in an optical structure, and transmission spectra are multiplied; and the resolution of the system is more than four times higher than that of a spectral imaging system of a single acoustic-optic tunable filter (AOTF). The secondary acousto-optic tunable filter hyperspectral imaging technology and the device have the advantages of high spectral resolution, small size, light weight, quick spectral scanning speed, wide tuning range and the like, and can be widely applied to the fields of remote sensing science, agricultural census, geographic information and the like.

Description

technical field [0001] The invention relates to a secondary acousto-optic tunable filter hyperspectral imaging method and device. The device can acquire image data and spectral data of a target at the same time, and can be used in fields such as remote sensing science, agricultural census, and geographic information acquisition to realize target detection. The identification and analysis of morphology and characteristics belong to the field of optical remote sensing imaging technology. Background technique [0002] Remote sensing technology is mainly used in geographic surveys, resource dynamic monitoring, and general surveys of agricultural production, including acquisition of target information, remote sensing image processing, and analysis of target characteristics. [0003] The hyperspectral imaging system is an important means for humans to observe and understand the world. The traditional hyperspectral imaging system relies on mechanical tuning technology to scan the t...

Claims

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Application Information

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IPC IPC(8): G01J3/28G02F1/11
Inventor 谭见瑶任玉蔡红星谭勇石晓光夏腾金光勇徐立君
Owner CHANGCHUN UNIV OF SCI & TECH
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