0004543: Investigate motion interpolation in cinematics

ID	Project	Category	View Status	Date Submitted	Last Update

0004543	The Dark Mod	Coding	public	12.06.2017 08:14	31.08.2020 04:16

Reporter	stgatilov	Assigned To	stgatilov
Priority	normal	Severity	feature	Reproducibility	always
Status	closed	Resolution	won't fix

Summary	0004543: Investigate motion interpolation in cinematics
Description	A lot of videos have low FPS, e.g. legacy ROQ videos seems to be played at 30 FPS. We can try to display artificial frame interpolated from the two nearest frames really present in the video file. This can raise FPS to make cinematics more smooth. I think simple linear interpolation is worth trying. If it improves perception of the video, then let it be. I think looking into more complicated motion estimation algorithms is not worth it.
Tags	No tags attached.

stgatilov 12.06.2017 08:15 administrator ~0008902	Note that idCinematicFFMpeg::GetFrame internal method already returns two closest frames and interpolation parameter between them. Currently the closest of these two frames i chosen, and it should be trivial to produce convex combination of two frames and return it.

stgatilov 31.08.2020 04:16 administrator ~0012767	I vaguely recall that I tried linear interpolation, and the results were not convincing. Right now I think this investigation is not worth the time.

Date Modified	Username	Field	Change
12.06.2017 08:14	stgatilov	New Issue
12.06.2017 08:14	stgatilov	Status	new => assigned
12.06.2017 08:14	stgatilov	Assigned To	=> stgatilov
12.06.2017 08:15	stgatilov	Note Added: 0008902
31.08.2020 04:16	stgatilov	Status	assigned => closed
31.08.2020 04:16	stgatilov	Resolution	open => won't fix
31.08.2020 04:16	stgatilov	Note Added: 0012767