Patent ID: 7782387

Claim:
An image pickup device comprising: an optical system having a distortion characteristic, the optical system capturing an optical image of an object, the distortion characteristic magnifying a center portion of the optical image and reducing a peripheral portion of the optical image; an image sensor that converts the optical image into image data; an angle-of-view setting unit that sets a first angle of view and a second angle of view for the image data, the second angle of view being narrower than the first angle of view; a distortion correction unit that performs a first distortion correction of a first selected portion of the image data to generate first-distortion corrected image data, the first selected portion of the image data being defined by the first angle of view, the distortion correction unit that performing a second distortion correction of a second selected portion of the image data to generate second-distortion corrected image data, the second selected portion of the image data being defined by the second angle of view, each of the first-distortion corrected image data and the second-distortion corrected image data having a first portion corresponding to the center portion of the optical image and a second portion corresponding to the peripheral portion of the optical image; a storage unit that stores the first-distortion corrected image data and the second-distortion corrected image data; an image display unit that displays the first-distortion corrected image data and the second-distortion corrected image data; a display filter unit that filters the first-distortion corrected image data and the second-distortion corrected image data, filtering being performed based on the first angle of view, the distortion characteristic, and the size of the image display unit, filtering performed on the first portion and filtering performed on the second portion being different; a first storage filter unit that filters the first-distortion corrected image data and the second-distortion corrected image data, filtering being performed based on the first angle of view, the distortion characteristic, and the size of the image display unit, filtering performed on the first portion and filtering performed on the second portion being different; and a second storage filter unit that filters the first-distortion corrected image data and the second distortion corrected image data, filtering being performed based on the first angle of view, the distortion characteristic, and the size of the image display unit, filtering performed on the first portion and filtering performed on the second portion being different.