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Common optical path combined optical field spectral imaging method and device

A spectral imaging and combined technology, which is applied in the field of spectral imaging, can solve the problems of image spatial resolution reduction and restricting the application of light field imaging technology, so as to improve the recognition rate, reduce the complexity and difficulty of data processing, and easily reduce weight and miniaturization

Active Publication Date: 2013-12-25
BEIHANG UNIV
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Problems solved by technology

[0004] However, in the above-mentioned light field imaging technology, the extra two-dimensional information is at the expense of a certain spatial resolution. Therefore, the existing light field imaging cameras have the problem of lower image spatial resolution, which restricts the use of light field imaging technology in the spectrum. Probing Applications

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  • Common optical path combined optical field spectral imaging method and device

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Common optical path combined light field spectral imaging method of the present invention, such as figure 1 As shown, it is completed through the following steps: Step 1: After modulating the target radiation information (the light emitted or reflected by the target in different directions), obtain the corresponding light of different wavelengths;

[0031] Step 2: Split the modulated target radiation information to form a transmitted light path and a reflected light path, each accounting for 50% of the target radiation information;

[0032] Step 3: Perform high spectral resolution light field imaging on the transmitted light path, and store it as the first image (light field image with high spectral resolution and low spatial resolution information); Color imaging is stored as a second image (grayscale image with high spatial resolution and low ...

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Abstract

The invention discloses a common optical path combined optical field spectral imaging method and a common optical path combined optical field spectral imaging device. Target radiation information is projected into and passes through a main lens, after being modulated by an optical filter array arranged in the main lens, the target radiation information is divided by a beam splitter prism so as to obtain two optical paths, namely, a transmission optical path and a reflection optical path, wherein the transmission optical path realizes high spectral resolution optical field imaging with a detector A through a microlens array, the reflection optical path directly conducts high spatial resolution panchromatic imaging through a detector B, the high spectral resolution optical field imaging information and the high spatial resolution panchromatic imaging information are sent by the detector A and the detector B to a computer for image registration and reconstitution, and the high spatial resolution and high spectral resolution image is obtained by adopting a multi-source data fusion rule. The device has the advantages of simultaneously obtaining the complete spectrum image information and high spatial resolution image information of the target, having a simple structure and light weight, and being miniaturized.

Description

technical field [0001] The invention relates to a method and equipment for imaging a three-dimensional surface of an object, specifically, a combined spectral imaging method and device with high spatial resolution and high spectral resolution, belonging to the field of spectral imaging Background technique [0002] In traditional multispectral imaging systems, spectral data acquisition methods are divided into three types: staring type, pushbroom type and snapshot type. Staring spectral imaging can only obtain a two-dimensional image of the target at a certain wavelength in one imaging process, and then obtain complete spectral information through multiple exposures by changing different wavelength ranges. This staring spectral imaging technology is rapidly moving For applications such as monitoring or changing targets, it may not be possible to obtain accurate real-time data. While the push-broom spectral imaging system obtains the spectral information of a one-dimensional...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28
Inventor 袁艳胡亮苏丽娟
Owner BEIHANG UNIV
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