Compact snapshot optically replicating and remapping imaging spectrometer (ORRIS) using a focal plane continuous variable filter

Mu, Tingkui; Han, Feng; Bao, Donghao; Zhang, Chunmin; Liang, Rongguang

doi:10.1364/ol.44.001281

Cited by 35 publications

(13 citation statements)

References 33 publications

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“…The whole area of the samples is collected by scanning, since the current system is only focused on a single point due to the use of the non-imaging OSA. In future, it can be extended to a two-dimensional imaging system using an imaging spectrometer [49]. The radius of the area collected in each scan is 5 mm, which is determined by the size of the illumination beam.…”

Section: Performance Of the Snapshot Plss With Spectrally-modulated Polarimetry On Human Gastric Samplesmentioning

confidence: 99%

Snapshot polarized light scattering spectroscopy using spectrally‐modulated polarimetry for early gastric cancer detection

Tuniyazi

Jiang

et al. 2021

Journal of Biophotonics

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Polarized light scattering spectroscopy (PLSS) is a promising optical technique developed for the detection of cancer, which extracts the single scattering light to infer morphological information of epithelial cells. However, traditional PLSS uses either a rotatable polarizer or two orthogonal polarizers to purify the single scattering light, which makes it complicated and challenged to build a PLSS endoscope. Herein, we propose a snapshot PLSS with a single optical path to directly get the single scattering light for the first time. The single scattering light is encoded using the spectrally-modulated polarimetry and decoded using the continuous slide iterative method. Both the polystyrene microsphere solutions and the ex vivo gastric cancer samples are used to verify the method. The experimental results of the snapshot PLSS are consistent well with that of the traditional PLSS. The proposed method has a potential for the building of snapshot PLSS endoscope systems in future.

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Section: Performance Of the Snapshot Plss With Spectrally-modulated Polarimetry On Human Gastric Samplesmentioning

confidence: 99%

Snapshot polarized light scattering spectroscopy using spectrally‐modulated polarimetry for early gastric cancer detection

Tuniyazi

Jiang

et al. 2021

Journal of Biophotonics

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“…Te image mapping spectrometer (IMS) and integrated feld technology use array elements to divide images and then reintegrate and superimpose the subimages to obtain the fnal result. Te most common array elements include fber arrays [19], microlens arrays [20], and linear gradient flters [21][22][23]. Tey need to properly process the pupils and fnally reimagine them on a two-dimensional detector.…”

Section: Introductionmentioning

confidence: 99%

High Zoom Ratio Foveated Snapshot Hyperspectral Imaging for Fruit Pest Monitoring

Chang

et al. 2023

Journal of Spectroscopy

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Snapshot hyperspectral imaging technology is increasingly used in agricultural product monitoring. In this study, we present a 9× local zoom snapshot hyperspectral imaging system. Using commercial spectral sensors with spectrally resolved detector arrays, we achieved snapshot hyperspectral imaging with 14 wavelength bands and a spectral bandwidth of 10–15 nm. An experimental demonstration was performed by acquiring spatial and spectral information about the fruit and Drosophila. The results show that the system can identify Drosophila and distinguish well between different types of fruits. The results of this study have great potential for online fruit classification and pest identification.

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“…Snapshot imaging spectrometers can be mainly classified into two categories-direct imaging and computational imaging [14][15][16]. The most typical direct imaging systems include integration-field spectroscopy (IFS) [17,18], the multispectral sagnac interferometer (MSI) [19], the image mapping spectrometer (IMS) [20,21], and the image replicating imaging spectrometer (IRIS) [22,23]. These systems have the advantage of possessing simple data reconstruction algorithms, which need less computational loads and thus can help to display and analyze spatial and spectral information at high frame rates [24].…”

Section: Introductionmentioning

confidence: 99%

Snapshot Imaging Spectrometer Based on Pixel-Level Filter Array (PFA)

Xie

Liu

et al. 2021

Sensors

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Snapshot spectral imaging technology plays an important role in many fields. However, most existing snapshot imaging spectrometers have the shortcomings of a large volume or heavy computational burden. In this paper, we present a novel snapshot imaging spectrometer based on the pixel-level filter array (PFA), which can simultaneously obtain both spectral and spatial information. The system is composed of a fore-optics, a PFA, a relay lens, and a monochromatic sensor. The incoming light first forms an intermediate image on the PFA through the fore-optics. Then, the relay lens reimages the spectral images on the PFA onto the monochromatic sensor. Through the use of the PFA, we can capture a three-dimensional (spatial coordinates and wavelength) datacube in a single exposure. Compared with existing technologies, our system possesses the advantages of a simple implementation, low cost, compact structure, and high energy efficiency by removing stacked dispersive or interferometric elements. Moreover, the characteristic of the direct imaging mode ensures the low computational burden of the system, thus shortening the imaging time. The principle and design of the system are described in detail. An experimental prototype is built and field experiments are carried out to verify the feasibility of the proposed scheme.

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Compact snapshot optically replicating and remapping imaging spectrometer (ORRIS) using a focal plane continuous variable filter

Cited by 35 publications

References 33 publications

Snapshot polarized light scattering spectroscopy using spectrally‐modulated polarimetry for early gastric cancer detection

Snapshot polarized light scattering spectroscopy using spectrally‐modulated polarimetry for early gastric cancer detection

High Zoom Ratio Foveated Snapshot Hyperspectral Imaging for Fruit Pest Monitoring

Snapshot Imaging Spectrometer Based on Pixel-Level Filter Array (PFA)

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