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===Spatial and temporal oversampling===
If it is allowed to have temporal oversampling, i.e., taking multiple consecutive and independent frames without changing the total exposure time <math>\tau</math>, the performance of the binary sensor is equivalent to the sensor with same number of spatial oversampling under certain condition.<ref name="bitsfromphotons" /> It means that people can make trade off between spatial oversampling and temporal oversampling. This is quite important, since technology usually gives limitation on the size of the pixels and the exposure time.
==Advantages over traditional sensors==
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