Publication

Shot noise influence in reconstructed phase images SNR in digital holographic microscopy

Pierre Marquet, Christian Depeursinge, Etienne Cuche, Florian Charrière
2005
Conference Papers

Abstract

We present a study based on simulations describing how shot noise, an intrinsic part of the recording process with a digital camera, influences the quality of the reconstructed phase images under different beams intensities configurations.

Official source

https://infoscience.epfl.ch/entities/publication/369d9104-78c5-4fba-a5e6-3e411f7c7004

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Pierre Marquet, Christian Depeursinge, Etienne Cuche, Florian Charrière
2005
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/369d9104-78c5-4fba-a5e6-3e411f7c7004

About this result

Related concepts (32)

Shot noise

Shot noise or Poisson noise is a type of noise which can be modeled by a Poisson process. In electronics shot noise originates from the discrete nature of electric charge. Shot noise also occurs in photon counting in optical devices, where shot noise is associated with the particle nature of light. In a statistical experiment such as tossing a fair coin and counting the occurrences of heads and tails, the numbers of heads and tails after many throws will differ by only a tiny percentage, while after only a few throws outcomes with a significant excess of heads over tails or vice versa are common; if an experiment with a few throws is repeated over and over, the outcomes will fluctuate a lot.

Digital camera

A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film. Digital cameras are now widely incorporated into mobile devices like smartphones with the same or more capabilities and features of dedicated cameras (which are still available). High-end, high-definition dedicated cameras are still commonly used by professionals and those who desire to take higher-quality photographs.

Noise (electronics)

In electronics, noise is an unwanted disturbance in an electrical signal. Noise generated by electronic devices varies greatly as it is produced by several different effects. In particular, noise is inherent in physics and central to thermodynamics. Any conductor with electrical resistance will generate thermal noise inherently. The final elimination of thermal noise in electronics can only be achieved cryogenically, and even then quantum noise would remain inherent. Electronic noise is a common component of noise in signal processing.

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Shot noise influence in reconstructed phase images SNR in digital holographic microscopy

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