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
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.