Patent ID: 6803953
Filing Date: 2004-10-12
Classification: H04N

Abstract:
An image sensing apparatus comprising:an area image sensor; a sensor operation unit which controls scanning operation of said area image sensor; area setting means for setting an area to be read of said area image sensor by controlling said sensor operation unit on the basis of an expansion ratio; a noise reduction unit which performs noise reduction processing on pixel signals obtained by consecutively scanning said area image sensor at different timings; memory which holds the pixel signals from which noise has been reduced by said noise reduction unit; a memory controller which controls reading of pixel signals from said memory in accordance with the area to be read set by said area setting means; and an expansion unit which expands an image using the pixel signals outputted from said noise reduction unit on the basis of the expansion ratio, wherein the pixel signals used in said noise reduction unit are pixel signals read from said memory and respective current pixel signals obtained by scanning said area image sensor.