A readout integrated circuit for sensitive infrared photodetection operating in intense backgrounds

Belmonte, Pablo Nunes Agra; Monteiro, Davies William de Lima

doi:10.1016/j.sna.2020.111861

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…In the case of the spectral camera used in this study, for which the major source of noise is DC, the above equation is rewritten to calculate the camera's DR 'R C ' [29]:…”

Section: R = 20•logmentioning

confidence: 99%

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Shaikh

Jaferzadeh²,

Thörnberg³

2022

Sensors

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In this work, a multi-exposure method is proposed to increase the dynamic range (DR) of hyperspectral imaging using an InGaAs-based short-wave infrared (SWIR) hyperspectral line camera. Spectral signatures of materials were captured for scenarios in which the DR of a scene was greater than the DR of a line camera. To demonstrate the problem and test the proposed multi-exposure method, plastic detection in food waste and polymer sorting were chosen as the test application cases. The DR of the hyperspectral camera and the test samples were calculated experimentally. A multi-exposure method is proposed to create high-dynamic-range (HDR) images of food waste and plastic samples. Using the proposed method, the DR of SWIR imaging was increased from 43 dB to 73 dB, with the lowest allowable signal-to-noise ratio (SNR) set to 20 dB. Principal Component Analysis (PCA) was performed on both HDR and non-HDR image data from each test case to prepare the training and testing data sets. Finally, two support vector machine (SVM) classifiers were trained for each test case to compare the classification performance of the proposed multi-exposure HDR method against the single-exposure non-HDR method. The HDR method was found to outperform the non-HDR method in both test cases, with the classification accuracies of 98% and 90% respectively, for the food waste classification, and with 95% and 35% for the polymer classification.

show abstract

“…In the case of the spectral camera used in this study, for which the major source of noise is DC, the above equation is rewritten to calculate the camera's DR 'R C ' [29]:…”

Section: R = 20•logmentioning

confidence: 99%

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Shaikh

Jaferzadeh²,

Thörnberg³

2022

Sensors

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show abstract

Multi-area detection sensitivity calculation model and detection blind areas influence analysis of photoelectric detection target

Zhang

Guan

2022

Defence Technology

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A 20μm Pixel-pitch, 60Me^- DROIC Based on CTIA for 640 x 512 Infrared Focal Plane Array

Zhang,

Wang

et al. 2023

2023 3rd International Conference on Electronic Information Engineering and Computer Communication (EIECC)

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A readout integrated circuit for sensitive infrared photodetection operating in intense backgrounds

Cited by 3 publications

References 25 publications

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Multi-area detection sensitivity calculation model and detection blind areas influence analysis of photoelectric detection target

A 20μm Pixel-pitch, 60Me^- DROIC Based on CTIA for 640 x 512 Infrared Focal Plane Array

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A readout integrated circuit for sensitive infrared photodetection operating in intense backgrounds

Cited by 3 publications

References 25 publications

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Extending Effective Dynamic Range of Hyperspectral Line Cameras for Short Wave Infrared Imaging

Multi-area detection sensitivity calculation model and detection blind areas influence analysis of photoelectric detection target

A 20μm Pixel-pitch, 60Me- DROIC Based on CTIA for 640 x 512 Infrared Focal Plane Array

Contact Info

Product

Resources

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A 20μm Pixel-pitch, 60Me^- DROIC Based on CTIA for 640 x 512 Infrared Focal Plane Array