Patent ID: 6982757
Filing Date: 2006-01-03
Classification: H04N

Abstract:
1. An image sensing apparatus comprising: an image sensor; a shielding member capable of shielding a light to said image sensor from an object; a storage area adapted to store first signals for at least two frames independently, wherein the first signals are generated by said image sensor when a light to said image sensor from the object is shielded by said shielding member; a first controller adapted to repeatedly overwrite new first signals in said storage area of the at least two frames in an alternative order; a second controller adapted to stop overwriting a new first signal in the storage area when a capturing operation of a second signal is designated after the new first signal begins to overwrite in the storage area, wherein the second signal is generated by said image sensor when a light to said image sensor from the object is not shielded by said shielding member; and a correction unit adapted to correct the second signal based on a most recent first signal stored with a complete frame in said storage area before the capturing operation of the second signal is initiated.