Methods and systems for judder adjustment in major motion pictures

A method, comprising:

• determining a selected judder angle corresponding to a first judder level for a scene of video media for a reference display scenario;
• determining an adjusted judder angle for a target display scenario based on brightness of the target display scenario and the selected judder angle, wherein the adjusted judder angle corresponds to a second judder level for the target display scenario, wherein the first judder level and the second judder level are the same, wherein determining the adjusted judder angle is based at least in part on brightness being a log function of judder angle;
• determining phase steps and interpolation phases for the scene based on the adjusted judder angle and a framerate conversion, wherein the adjusted judder angle has a relationship to a range of phase steps and the framerate conversion is a ratio between input framerate and output framerate;
• interpolating frames between input frames of the scene based on the determined phase steps and interpolation phases;
• and
• saving the scene with the interpolated frames.

A method, comprising:

• determining a selected judder angle for a scene of video media based on user input, wherein the selected judder angle corresponds to a reference display scenario and the selected judder angle corresponds to a first judder level for the scene when displayed in the reference display scenario;
• obtaining one or more parameters of a target display scenario, wherein the one or more parameters comprise one or more of brightness, panning speed, and viewing distance;
• automatically adjusting the selected judder angle to an adjusted judder angle based on the one or more parameters of the target display scenario, wherein the adjusted judder angle is determined based on determining a ratio between a second judder level of the target display scenario as affected by the one or more parameters and the first judder level;
• interpolating frames between input frames of the scene based on the adjusted judder angle and an output framerate, wherein frame interpolation is non-linear and phase steps of frame interpolation are determined based on the adjusted judder angle;
• and
• saving the scene to memory.