Image sensor and image processing system that compensate for fixed pattern noise (FPN)

摘要

An image sensor operating in a skip mode and reading out a pixel signal provided by at least one of a plurality of pixels and compensating for fixed pattern noise (FPN) in column-parallel pipelines. The image sensor includes; a switch signal generator that generates a first switch control signal and a second switch control signal in response to FPN location information characterizing a first pipeline among the column-parallel pipelines as a noisy pipeline generating FPN, and characterizing a second pipeline among the column-parallel pipelines as a quiet pipeline not generating FPN, a binning switch block including a first switch controlled by the first switch control signal and a second switch controlled by the second switch control signal, wherein the first switch control signal causes the first pipeline to be inactivated and the second switch control signal causes the second pipeline to be activated, and a binning block that performs a digital binning operation on digital signals provided via the column-parallel pipelines including the second pipeline.