Chas Tennis
Leading Member
For some tennis serves, a player uploaded a smartphone video to Youtube. The LG3 smartphone 720 120 fps videos apparently played back on YT in real time, not slow motion. He then slowed them down to 1/8 speed using the YT capability. The videos now play back in slow motion with artifacts, double images, missing objects, etc. especially during the faster parts of the serve.
At this point, creating a new 30 fps playback videos from the 120 fps recordings using video editing software would limit usage to those who edit videos.
For this application of analyzing tennis strokes it is important to do stop action single frame viewing. The single frames should be free of artifacts and added blur from post processing. Also no recorded frames should be discarded by Youtube or Vimeo.
Has anyone uploaded 120 fps Smartphone videos to Youtube or Vimeo and found a way to display the 120 fps without losing frames or adding processing artifacts?
I don't have a smartphone camera with high speed video mode. Maybe smartphones don't produce 120 fps video file types that are as usable on Youtube or Vimeo. ?? How can you handle it in the simplest way?
Note: Usually non-smartphone video cameras that record in high speed video mode produce common video file types that playback at 30 fps in slow motion. For example, .AVI or .MOV video files. For example, a 240 fps recording will produce a 30 fps playback video that plays back at 1/8x the speed of real time. It is easy to stop on the individual frames from the original recording.
Chas Tennis
At this point, creating a new 30 fps playback videos from the 120 fps recordings using video editing software would limit usage to those who edit videos.
For this application of analyzing tennis strokes it is important to do stop action single frame viewing. The single frames should be free of artifacts and added blur from post processing. Also no recorded frames should be discarded by Youtube or Vimeo.
Has anyone uploaded 120 fps Smartphone videos to Youtube or Vimeo and found a way to display the 120 fps without losing frames or adding processing artifacts?
I don't have a smartphone camera with high speed video mode. Maybe smartphones don't produce 120 fps video file types that are as usable on Youtube or Vimeo. ?? How can you handle it in the simplest way?
Note: Usually non-smartphone video cameras that record in high speed video mode produce common video file types that playback at 30 fps in slow motion. For example, .AVI or .MOV video files. For example, a 240 fps recording will produce a 30 fps playback video that plays back at 1/8x the speed of real time. It is easy to stop on the individual frames from the original recording.
Chas Tennis
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