Image signal processor having an enlarged correction range for picture blurring caused by movement of the hands

Abstract From the Canadian patent

An image signal processor for use in an imaging system. Each field of an input image signal is stored in a memory. If the picture blurring is not within a predetermined range, a zoom controller disables an optical zoom-in operation and determines the size of a reduced-size readout frame such that the picture blurring is just fit in a predetermined range. On receiving the size, an address genetator generates addresses to cause the pixels to be read out of the reduced-size readout frame in the memory, which is located at a, position shifted from the center of the field by the PV vector and which has the reduced size. In response to receiving the size of the reduced-size readout frame the …