Novel driver method to improve ordinary CCD frame rate for high-speed imaging diagnosis

Luo, Ting; Li, Binkang; Yang, Shaolong; Guo, Minghui; Yan, Ming

doi:10.1016/j.nima.2016.03.048

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…It is desirable to eliminate the sensor dimensions altogether as this avoids increased image acquisition times (CCD frame-transfer interval increases with sensor-pixel-array dimensions [19]). An improvement of interest is to consolidate the sensor imaging pixels to utilize a single sensing element [20], [21].…”

Section: Introductionmentioning

confidence: 99%

Single-Point Detection Architecture via Liquid Crystal Modulation for Hyperspectral Imaging Systems

Brodie

Collier

2020

IEEE Access

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Hyperspectral imaging (HSI) architectures can acquire one-dimension of spatial information and one-dimension of spectral information on a two-dimensional image sensor for an image, such as in the traditional line-scan HSI architecture. However, development of HSI architectures for multiple spatial dimensions is challenging as there is not a third dimension on a two-dimensional image sensor on which to store spectral information. The presented work introduces a snapshot HSI architecture to alleviate this issue. The snapshot HSI architecture incorporates single-point detection via liquid crystal modulation and a single photodiode. Mixing of hyperspectral data is expressed as intermodulation frequency products within the Fourier-domain. Spatial information can be recorded through spatial frequencies and spectral information can be recorded through spectral frequencies. Such modulation is achieved through liquid crystal spatial and spectral arrays of an image beam. The spatial and spectral modulation frequencies form intermodulation frequency products that are recorded on the single photodiode and can be uncovered through Fourier-domain filtering. INDEX TERMS Frequency-domain analysis, multispectral imaging, optical diffraction, photodiode This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication.

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Section: Introductionmentioning

confidence: 99%

Single-Point Detection Architecture via Liquid Crystal Modulation for Hyperspectral Imaging Systems

Brodie

Collier

2020

IEEE Access

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Characterization of a sCMOS-based high-resolution imaging system

Mittone

Manakov²,

Broche

et al. 2017

J Synchrotron Radiat

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The detection system is a key part of any imaging station. Here the performance of the novel sCMOS-based detection system installed at the ID17 biomedical beamline of the European Synchrotron Radiation Facility and dedicated to high-resolution computed-tomography imaging is analysed. The system consists of an X-ray-visible-light converter, a visible-light optics and a PCO.Edge5.5 sCMOS detector. Measurements of the optical characteristics, the linearity of the system, the detection lag, the modulation transfer function, the normalized power spectrum, the detective quantum efficiency and the photon transfer curve are presented and discussed. The study was carried out at two different X-ray energies (35 and 50 keV) using both 2× and 1× optical magnification systems. The final pixel size resulted in 3.1 and 6.2 µm, respectively. The measured characteristic parameters of the PCO.Edge5.5 are in good agreement with the manufacturer specifications. Fast imaging can be achieved using this detection system, but at the price of unavoidable losses in terms of image quality. The way in which the X-ray beam inhomogeneity limited some of the performances of the system is also discussed.

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Spatial light modulation and optical mixing for snapshot hyperspectral imaging architectures

Brodie

Collier

2021

Unconventional Imaging and Adaptive Optics 2021

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Novel driver method to improve ordinary CCD frame rate for high-speed imaging diagnosis

Cited by 3 publications

References 10 publications

Single-Point Detection Architecture via Liquid Crystal Modulation for Hyperspectral Imaging Systems

Single-Point Detection Architecture via Liquid Crystal Modulation for Hyperspectral Imaging Systems

Characterization of a sCMOS-based high-resolution imaging system

Spatial light modulation and optical mixing for snapshot hyperspectral imaging architectures

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