Apparatus and method for reducing smear in digital images captured using frame-transfer CCD sensor

摘要

An apparatus and method for reducing smear in electronic images utilizes estimated smear signals to remove components in the image signals of the electronic images that are attributable to the smear. The estimated smear signals correspond to the smear components of the image signals. The estimated smear signals are generated by collecting electrical charges in an electronic image sensor after an exposure period. The estimated smear signals may be generated in sequence to the acquisition of the image signals. Alternatively, the estimated smear signals may be generated in parallel to the acquisition of the image signals.