| 摘要 |
An image input apparatus reliably detects occurrence of an error in the receiving of a plurality of image signals for obtaining a high-resolution still image, and prevents time loss caused by meaningless processing in a later stage of processing. By performing pixel shifting control of a lens unit by a lens control unit, a plurality of image signals are produced from an image of an object by an image pickup unit, and are stored in a memory unit. Thereafter, the lens unit is returned to its original position. A calculation unit compares an image signal produced again at that time with the image signal stored in the memory unit, and an invalidity determination unit determines validity/invalidity of the stored image signals. When it has been determined that the stored image signals are invalid, the data stored in the memory unit is cancelled. A plurality of image signals are reinput from the image pickup unit and are stored in the memory unit.
|
