Noise level based exposure time control for sequential subimages

摘要

A sequence of multiple subimages is captured by an imaging sensor organized in multiple subsets of pixels. Each of the subsets of pixels is assigned to capturing a corresponding one of the subimages. For each of the subsets of pixels, a noise level of an output of the pixels of the subset is measured. Depending on the measured noise level, an exposure time for capturing the corresponding subimage is controlled.