A common optical path combined light field spectral imaging method and device

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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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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