公开(公告)号：US20210279845A1

公开(公告)日：2021-09-09

申请号：US17182685

申请日：2021-02-23

Applicant: NEC Laboratories America, Inc.

Inventor： Min Feng ,  Srimat Chakradhar ,  Alper Yildirim

IPC: G06T5/00 ,  G06T7/80 ,  G06T7/13

Abstract: A computer-implemented method executed by at least one processor for reducing radial distortion errors in fish-eye images is presented. The method includes capturing an image from a camera including distortions, detecting arc-shaped edge segments in the image including the distortions, estimating a main distortion parameter by fixing a distortion centerpoint in a middle of the image, estimating the distortion centerpoint with the main distortion parameter, and obtaining an undistorted version of the captured image by inverting the distortion model.

公开(公告)号：US11699216B2

公开(公告)日：2023-07-11

申请号：US17182685

申请日：2021-02-23

Applicant: NEC Laboratories America, Inc.

Inventor： Min Feng ,  Srimat Chakradhar ,  Alper Yildirim

IPC: G06T5/00 ,  G06T7/13 ,  G06T7/80

CPC classification number: G06T5/006 ,  G06T7/13 ,  G06T7/80 ,  G06T2207/10016

Abstract: A computer-implemented method executed by at least one processor for reducing radial distortion errors in fish-eye images is presented. The method includes capturing an image from a camera including distortions, detecting arc-shaped edge segments in the image including the distortions, estimating a main distortion parameter by fixing a distortion centerpoint in a middle of the image, estimating the distortion centerpoint with the main distortion parameter, and obtaining an undistorted version of the captured image by inverting the distortion model.