Method for vignetting correction of image and apparatus therefor

Patent №

US 9,740,958

Granted

2017-08-22

Filed 2015

Owner

POSTECH ACADEMY - INDUSTRY FOUNDATION

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

14757620

Method and apparatuses for correcting vignetting effects of an image are disclosed. A method for vignetting correction of an image according to an exemplary embodiment of the present disclosure may comprise receiving a two-dimensional image; calculating a radial bright channel representing intensity of the two-dimensional image; estimating a vignetting function of the two-dimensional image having similarity to the calculated radial bright channel; and correcting the vignetting effects of the two-dimensional image by using the estimated vignetting function. The vignetting correction methods and apparatuses according to the present disclosure can rapidly correct vignetting effects of an image by using a smaller memory, and correct vignetting effects of an arbitrary single image without being affected by a camera setting and camera lenses used for the image.

AI classification

Vision1.00
Evolutionary computation0.02
AI hardware0.01
Machine learning0.00
Natural language0.00
Speech0.00
Knowledge representation0.00
Planning0.00

Ownership

POSTECH ACADEMY - INDUSTRY FOUNDATION

assignment · 378960170

Assignors

LEE, SEUNG YONG, CHO, HO JIN, LEE, HYUN JOON

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

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