LENS DISTORTION CORRECTION DEVICE AND APPLICATION PROCESSOR HAVING THE SAME

摘要

A lens distortion correction device and an application processor having the same include a distortion correction unit configured to correct a distorted image into an undistorted image and an image enhancement unit configured to improve the undistorted image using a high-frequency component of the distorted image.

主权项

1. An image sensor module, comprising:
an image sensor configured to receive an image through a lens; and a lens distortion correction device configured to receive a distorted image from the image sensor, wherein the lens distortion correction device comprises:
a distortion correction unit configured to correct the distorted image into an undistorted image; andan image enhancement unit configured to enhance the undistorted image using a high-frequency component of the distorted image, wherein the distortion correction circuit corrects the distorted image applying a bilinear interpolation method controlled according to a degree of distortion determined based on a distance from a center of a image, and wherein a plurality of patches in the distorted image and a plurality of patches in the undistorted image each include a low-frequency component and a high-frequency component.