Accurate optical flow interpolation optimizing bi-directional consistency and temporal smoothness

An electronic device comprising:

• at least one processing device configured to:
• obtain multiple video frames;
• determine whether a bi-directional optical flow between the multiple video frames satisfies an image quality criterion for bi-directional consistency;
• identify a non-linear curve based on pixel coordinate values from at least two of the video frames, the at least two video frames comprising first and second video frames;
• generate interpolated video frames between the first and second video frames by applying non-linear interpolation based on the non-linear curve;
• and
• output the interpolated video frames for presentation.

A non-transitory computer readable medium contains instructions that when executed cause at least one processor of an electronic device to:

• obtain multiple video frames;
• determine whether a bi-directional optical flow between the multiple video frames satisfies an image quality criterion for bi-directional consistency;
• identify a non-linear curve based on pixel coordinate values from at least two of the video frames, the at least two video frames comprising first and second video frames;
• generate interpolated video frames between the first and second video frames by applying non-linear interpolation based on the non-linear curve;
• and
• output the interpolated video frames for presentation.