IEEE Journal of the Electron Devices Society (Jan 2022)
Analog Read Noise and Quantizer Threshold Estimation From Quanta Image Sensor Bit Density
Abstract
Estimation of the analog read noise level and quantizer threshold level to within a few hundredths of an electron can be obtained by measuring the output bit density, D, of a single-bit quanta image sensor (1bQIS) as a function of quanta exposure, H. Analysis of the D-H characteristics as a function of read noise and quantizer threshold levels is performed and a procedure for extraction of estimated read noise and quantizer threshold is suggested and demonstrated.
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