Re:First-Person Hyper-lapse Videos
by Game_Ender on Sunday August 10, 2014 @06:13PM
(#8160936)
It does 3D scene and camera path reconstructions then re-renders the scene from different perspectives. It's not just "picking the best frames". The technical explanation video goes into the details: https://www.youtube.com/watch?v=sA4Za3Hv6ng
Maybe you should watch the technical video or read the paper before commenting.
The paper says it took 23,700 minutes to do just the frame selection for the 13 minute bike input video. That's over two weeks.
Actually it says that it took 13 minutes to process 23,700 frames! :)
No, see table 1: "input duration (minutes and seconds), input frame count". It says the source file is 13 minutes 11 seconds and that it has 27,000 frames. In table 2 it says that source selection took 1 minute per frame. That's where I got 27,000 minutes from.
Ah, good call, thanks!
I now think we both got it wrong (but me more so than you): Table 2 specifies "1 min/frame", but the source frame selection happens for output frames, not input frames. Table 1 lists a total of 2189 output frames for the 23700 input frames of the "BIKE 3" sequence, so I guess we're looking at 2189 minutes?
Correct me if I misread anything. Again.
On the other hand, if it is actually generating a lot of "best guess" images to put between gaps that are too large to bridge (too many bad frames in a row) with the current frames I could see that taking a bit longer, but not a week.