Patent ID: 8194157
Filing Date: 2012-06-05
Classification: G02B,H04N

Abstract:
1. An image-pickup apparatus comprising: an image-pickup element that photoelectrically converts an optical image formed by an image-pickup optical system having a zoom function; and a correcting part that performs a correction processing for a distortion component in image data generated based on an output from the image-pickup element, the distortion component corresponding to a distortion of the image-pickup optical system, wherein the image-pickup optical system provides a first zoom range in which an absolute value of a distortion amount at a certain image height is larger than a predetermined value and a second zoom range in which an absolute value of a distortion amount at the certain image height is smaller than the predetermined value, wherein the correcting part performs the correction processing so that an absolute value of the distortion component remaining in first corrected image data obtained by correcting the image data generated in the first zoom range is larger than an absolute value of the distortion component remaining in second corrected image data obtained by correcting the image data enerated in the second zoom range, and wherein in the first zoom range, an absolute value of the distortion amount at an image height with an image height ratio of 70% with reference to a maximum image height of the image-pickup element is larger than 1%.