US 12,010,456 B2
Method for performing frame interpolation based on single-directional motion and associated non-transitory machine-readable medium
Yao-Sheng Wang, Hsinchu (TW); Pei-Kuei Tsung, Hsinchu (TW); Chia-Ni Lu, Hsinchu (TW); Yu-Sheng Lin, Hsinchu (TW); Chien-Yu Huang, Hsinchu (TW); Chih-Wen Goo, Hsinchu (TW); and Cheng-Lung Jen, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsin-Chu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Mar. 29, 2023, as Appl. No. 18/128,180.
Claims priority of provisional application 63/327,898, filed on Apr. 6, 2022.
Prior Publication US 2023/0328202 A1, Oct. 12, 2023
Int. Cl. H04N 7/01 (2006.01)
CPC H04N 7/014 (2013.01) [H04N 7/0127 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A frame interpolation method for generating a third image frame interpolated between a first image frame and a second image frame, comprising:
performing motion estimation upon a first input image frame and a second input image frame, to obtain a single-directional motion, wherein the first input image frame is derived from the first image frame, and the second input image frame is derived from the second image frame;
scaling the single-directional motion according to a time point of the third image frame, to generate a scaled motion;
deriving a forward-warped result from a result of performing a forward warping operation and a first inverse operation upon the scaled motion;
performing a second inverse operation upon the forward-warped result, to generate an inversed result; and
generating the third image frame according to the first image frame, the second image frame, the forward-warped result, and the inversed result.