Multispectral matrix silicon photodetectors with the IR range registration

Zhbanova, V. L.; Parvulyusov, Yu B; Solomatin, V. A.

doi:10.1088/1742-6596/1679/2/022039

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Ранее подробно были рассмотрены усовершенствованные многослойные матричные фотоприемники [10,11], приведены результаты исследования [12,13]. Предложенные усовершенствованные системы цветоделения являются гибридом двух основных методов цветоделения -поверхностного и пространственного.…”

Section: двухслойные системы цветоделенияunclassified

Interpolation in microscaning two-layer matrix photoreceivers

Zhbanova,

Yakimenko

2023

Analysis and data processing systems

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The paper presents a method for microscanning two-layer patterns of matrix photodetectors based on silicon. The developed systems register the visible and infrared spectra. Various methods of microscanning with the developed multispectral matrix photodetectors are proposed. Two colors are recorded in each cell, which simplifies the interpolation process, and using the microscanning technology, can eliminate it. For the obtained subpixels, the interpolation algorithm is reduced. In this case, the direction of a matrix shift should be taken into account when performing microscanning. For staggered cell patterns, the choice of direction is not as critical as for pseudo-random or vertical/horizontal arrangement. When microscanning, the direction of matrix shift should be taken into account. For staggered cell patterns, the choice of direction is not as critical as for pseudo-random or vertical/horizontal arrangement. So, for example, a pseudo-random arrangement is suitable for recording images of nature, where there are many small details of various shapes; and vertical/horizontal arrangement is suitable for scenes of the city and industrial areas, where everything has clear vertical and horizontal lines. The very idea of microscanning with a shift of half a pixel makes it possible to fill the "blind" zones of the matrix - pixel binding - on four sides of the pixel itself, which leads to a 4-fold increase in color resolution. For the obtained subpixels, a linear or adaptive interpolation method is suitable. It is also possible to take a more complicated path and choose bicubic, biharmonic interpolation. However, this approach contradicts the very concept of simplifying the image processing algorithm, although it leads to high-contrast color resolutions. Such systems can be used in surveys where it is necessary to record the exact details of a terrain or object, for example, in aerial photography and photogrammetry.

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Section: двухслойные системы цветоделенияunclassified

Interpolation in microscaning two-layer matrix photoreceivers

Zhbanova,

Yakimenko

2023

Analysis and data processing systems

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“…The author has developed patterns for matrix photodetectors with the function of operating in the visible and infrared ranges [10,11]. The essence of the proposed patterns is to combine the capabilities of Bayer patterns and multilayer systems.…”

Section: Introductionmentioning

confidence: 99%

Application of the Kimmel method for two-layer matrix color separation systems

Zhbanova

2023

E3S Web of Conf.

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In this work, interpolation by the Kimmel method is applied for the developed color separation systems based on matrix photodetectors. Author's two-layer receivers with an equal distribution of layers of the visible and infrared spectra over the sensitive surface are given. To compare the interpolation result, it was proposed to use a matrix photodetector with a modified standard RGBG system on RGBIr. This system shows what a multispectral receiver would be like without the use of multilayer silicon technologies. Thus, it was possible to show that the use of two-layer color separation systems simplifies the interpolation algorithm by a factor of two. The developed systems can be useful in various fields of science and technology. The use of such multispectral matrices is necessary especially in agriculture and forestry for monitoring the environment and detecting fire.

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Beyond Tristimulus Color Vision with Perovskite-Based Multispectral Sensors

Qarony

Khan

Hossain

et al. 2022

ACS Appl. Mater. Interfaces

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In this study, optical multispectral sensors based on perovskite semiconductors have been proposed, simulated, and characterized. The perovskite material system combined with the 3D vertical integration of the sensor channels allow for realizing sensors with high sensitivities and a high spectral resolution. The sensors can be applied in several emerging areas, including biomedical imaging, surveillance, complex motion planning of autonomous robots or vehicles, artificial intelligence, and agricultural applications. The sensor elements can be vertically integrated on a readout electronic to realize sensor arrays and multispectral digital cameras. In this study, three- and six-channel vertically stacked perovskite sensors are optically designed, electromagnetically simulated, and colorimetrically characterized to evaluate the color reproduction. The proposed sensors allow for the implementation of snapshot cameras with high sensitivity. The proposed sensor is compared to other sensor technologies in terms of sensitivity and selectivity.

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Multispectral matrix silicon photodetectors with the IR range registration

Cited by 5 publications

References 4 publications

Interpolation in microscaning two-layer matrix photoreceivers

Interpolation in microscaning two-layer matrix photoreceivers

Application of the Kimmel method for two-layer matrix color separation systems

Beyond Tristimulus Color Vision with Perovskite-Based Multispectral Sensors

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