A statistical model for signal-dependent charge sharing in image sensors
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چکیده
A Monte Carlo model based on signal-dependent charge sharing mechanism during charge collection has been developed to explain the non-linearity of the Photon Transfer Curve (PTC) in image sensors. The model is based on tracing of individual electrons generated by Poisson-distributed photons and describes the PTC non-linearity as a process with subPoisson variance, with excellent qualitative agreement with the experimental data. A new PTC curve fitting formula is proposed, taking into account this non-linearity. The new formula is an excellent fit to the data, does not require selection of linear section of data points and allows more robust calculation of the system conversion gain.
منابع مشابه
A statistical model for signal-dependent charge sharing in image sensors
A Monte Carlo model based on signal-dependent charge sharing mechanism during charge collection has been developed to explain the non-linearity of the Photon Transfer Curve (PTC) in image sensors. The model is based on tracing of individual electrons generated by Poisson-distributed photons and describes the PTC non-linearity as a process with subPoisson variance, with excellent qualitative agr...
متن کاملA statistical model for signal-dependent charge sharing in image sensors
A Monte Carlo model based on signal-dependent charge sharing mechanism during charge collection has been developed to explain the non-linearity of the Photon Transfer Curve (PTC) in image sensors. The model is based on tracing of individual electrons generated by Poisson-distributed photons and describes the PTC non-linearity as a process with subPoisson variance, with excellent qualitative agr...
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