Patent ID: 9516285
Filing Date: 2016-12-06
CPC Classification: H04N

Claim Text:
1. An image processing device for generating an output image with reduced distortion from an input image inputted with an aberration distortion obtained from an image formation optical system, the image processing device comprising: a high order operation section that computes a sampling position in said input image by a high order polynomial from a number of predetermined pixel positions in said output image for compensation of distortion aberration, wherein the number of predetermined pixel positions in said output image is a non-zero number that is smaller than a number for all pixel positions of said output image; an interpolating calculation section that carries out interpolation calculation of sampling positions in said input image for further pixel positions in said output image, other than said predetermined pixel positions in said output image, wherein the sampling position in said input image for each one of said further pixel positions in said output image is calculated by interpolation from respective sampling positions in said input image of a plurality of predetermined pixel positions in said output image near said each one of said further pixel positions in said output image; a sampling unit that samples a pixel value of said input image in each one of a set of sampling positions computed via said high order operation section and said interpolating calculation section; and a digital image output section that renders the output image with reduced distortion based upon a set of samples of pixel values from the input image at a set of sampling positions, wherein the set of sampling positions includes the sampling positions computed via said high order operation section and said interpolating calculating section.