A CMOS-Compatible, Monolithically Integrated Snapshot-Mosaic Multispectral Imager

Gonzalez, Pilar; Geelen, Bert; Blanch, Carolina; Tack, Klaas; Lambrechts, Andy

doi:10.1255/nirn.1531

Cited by 15 publications

(5 citation statements)

References 4 publications

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“…Similar to the camera used in the first system, this system also used FPI filters but deposited in a 4 × 4 square grids so that the final image is a mosaiced image. The snapshot system captured the images of 640 × 480 de-mosaiced images from 16 wavelengths from 467 nm to 620 nm [27]. For motion of the stage in the X-Y direction, we used a commercial X-Y motorized stage.…”

Section: Automatic Image Acquisitionmentioning

confidence: 99%

An automatic whole-slide hyperspectral imaging microscope

Tran¹,

Gomez²,

Fei

2023

Label-Free Biomedical Imaging and Sensing (LBIS) 2023

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Whole slide imaging (WSI) is a common step used in histopathology to quickly digitize stained histological slides. Digital whole-slide images not only improve the efficiency of labeling but also open the door for computer-aided diagnosis, specifically machine learning-based methods. Hyperspectral imaging (HSI) is an imaging modality that captures data in various wavelengths, some beyond the range of visible lights. In this study, we developed and implemented an automated microscopy system that can acquire hyperspectral whole slide images (HWSI). The system is robust since it consists of parts that can be swapped and bought from different manufacturers. We used the automated system and built a database of 49 HWSI of thyroid cancer. The automatic whole-slide hyperspectral imaging microscope can have many potential applications in biological and medical areas.

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Section: Automatic Image Acquisitionmentioning

confidence: 99%

An automatic whole-slide hyperspectral imaging microscope

Tran¹,

Gomez²,

Fei

2023

Label-Free Biomedical Imaging and Sensing (LBIS) 2023

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“…To satisfy the need for low-cost and highly compact HSI cameras, single shot, or so-called snapshot hyperspectral sensors are developed using semiconductor process technology [111]. They allow imaging at video rate without the need to move the camera (detector) or sample (platform).…”

Section: Snapshot Hyperspectral Imagingmentioning

confidence: 99%

A Review of Recent Studies Employing Hyperspectral Imaging for the Determination of Food Adulteration

Temiz¹

2021

Photochem

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Applications of hyperspectral imaging (HSI) methods in food adulteration detection have been surveyed in this study. Subsequent to the research on existing literature, studies were evaluated based on different food categories. Tea, coffee, and cocoa; nuts and seeds; herbs and spices; honey and oil; milk and milk products; meat and meat products; cereal and cereal products; and fish and fishery products are the eight different categories investigated within the context of the present study. A summary of studies on these topics was made, and articles reported in 2019 and 2020 were explained in detail. Research objectives, data acquisition systems, and algorithms for data analysis have been introduced briefly with a particular focus on feature wavelength selection methods. In light of the information extracted from the related literature, methods and alternative approaches to increasing the success of HSI based methods are presented. Furthermore, challenges and future perspectives are discussed.

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“…FP resonators, compared to metasurface filter devices, have a simpler structure, and do not depend on complex spectral reconstruction algorithms. Multispectral imaging devices, including wedge-shaped resonators and multi-step etched array resonators, have already made their mark in the market [ 32 , 33 , 34 ]. However, the limited high reflectance bandwidth of the reflectors that make up the FP resonator hinders the further expansion of the operational bandwidth of the FP resonator cavity.…”

Section: Introductionmentioning

confidence: 99%

Design of Mantis-Shrimp-Inspired Multifunctional Imaging Sensors with Simultaneous Spectrum and Polarization Detection Capability at a Wide Waveband

Wang,

Gao

et al. 2024

Sensors

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The remarkable light perception abilities of the mantis shrimp, which span a broad spectrum ranging from 300 nm to 720 nm and include the detection of polarized light, serve as the inspiration for our exploration. Drawing insights from the mantis shrimp’s unique visual system, we propose the design of a multifunctional imaging sensor capable of concurrently detecting spectrum and polarization across a wide waveband. This sensor is able to show spectral imaging capability through the utilization of a 16-channel multi-waveband Fabry–Pérot (FP) resonator filter array. The design incorporates a composite thin film structure comprising metal and dielectric layers as the reflector of the resonant cavity. The resulting metal–dielectric composite film FP resonator extends the operating bandwidth to cover both visible and infrared regions, specifically spanning a broader range from 450 nm to 900 nm. Furthermore, within this operational bandwidth, the metal–dielectric composite film FP resonator demonstrates an average peak transmittance exceeding 60%, representing a notable improvement over the metallic resonator. Additionally, aluminum-based metallic grating arrays are incorporated beneath the FP filter array to capture polarization information. This innovative approach enables the simultaneous acquisition of spectrum and polarization information using a single sensor device. The outcomes of this research hold promise for advancing the development of high-performance, multifunctional optical sensors, thereby unlocking new possibilities in the field of optical information acquisition.

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A CMOS-Compatible, Monolithically Integrated Snapshot-Mosaic Multispectral Imager

Cited by 15 publications

References 4 publications

An automatic whole-slide hyperspectral imaging microscope

An automatic whole-slide hyperspectral imaging microscope

A Review of Recent Studies Employing Hyperspectral Imaging for the Determination of Food Adulteration

Design of Mantis-Shrimp-Inspired Multifunctional Imaging Sensors with Simultaneous Spectrum and Polarization Detection Capability at a Wide Waveband

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