AUTOMATIC FISHEYE CAMERA CALIBRATION FOR VIDEO ANALYTICS

Patent №

US 11,699,216

Granted

2023-07-11

Filed 2021

Owner

NEC LABORATORIES AMERICA, INC.

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

17182685

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.

VisionG06T 5/80G06T 7/13G06T 7/80G06T 2207/10016

AI classification

Vision1.00
Evolutionary computation0.00
Natural language0.00
Speech0.00
Machine learning0.00
Planning0.00
Knowledge representation0.00
AI hardware0.00

Ownership

NEC LABORATORIES AMERICA, INC.

assignment · 558880924

Assignors

FENG, MIN, CHAKRADHAR, SRIMAT, YILDIRIM, ALPER

On an employer assignment, the assignors are typically the inventors.

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