US 9,811,918 B2
Method and apparatus for estimating image optical flow
Young-su Moon, Seoul (KR); Kuk-jin Yoon, Gwangju (KR); and Jae-Hyun Kim, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and GWANJU INSTITUTE OF SCIENCE AND TECHNOLOGY, Gwangju (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, Gwangju (KR)
Filed on Feb. 8, 2016, as Appl. No. 15/17,792.
Claims priority of application No. 10-2015-0054627 (KR), filed on Apr. 17, 2015.
Prior Publication US 2016/0307321 A1, Oct. 20, 2016
Int. Cl. G06K 9/46 (2006.01); G06T 7/207 (2017.01); G06T 7/269 (2017.01)
CPC G06T 7/207 (2017.01) [G06T 7/269 (2017.01); G06T 2207/10016 (2013.01); G06T 2207/20016 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of estimating image optical flow, the method comprising:
receiving a first image and a second image, the first image and the second image being temporally consecutive with each other;
calculating rates of change of brightness values of pixels in the first image and the second image;
calculating a first optical flow estimation result value of a first pixel within the first image and a second optical flow estimation result value of a second pixel within the second image by using the calculated rates of change;
comparing the first optical flow estimation result value with the second optical flow estimation result value; and
correcting the first optical flow estimation result value of the first image and the second optical flow estimation result value of the second image by using a result of the comparison.