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| Not all that crazy; it's how video camera implemented a "film mode" - sample the sensor at 24p, then add telecine-like pulldown to turn it into 29.97 interlaced. To reverse this at get back to the source progressive frames, you need to separate fields (virtually all HD is upper field first), then remove the pulldown.
- Chris
On Mar 28, 2012, at 10:44 AM, Robert Behnke wrote: Actually, it is a strange thing. The HPX500 had a 1080i 24p mode. From the manual: "this mode enables shooting 24fps in the progressive mode. a 2:3 conversion format is used to convert to 24 fps video signal to a 60-field interlaced signal for output or recording - this guarantees a cine-like video output" I could deinterlace the footage in Mocha but using a 3:2 pull down and setting it to upper field. Crazy format. Robert Behnke
"as 1080i24p " it can be i or p not both. seems like an odd file (out of standards) i would first output a nice progressive sequence from after effects (doubling frame rate if interlaced) , then track that.
Le 23 mars 2012 21:46, Robert Behnke <robert_behnke@yahoo.com> a écrit :
I think I figured it out... maybe. So it was 1080i24p (come up in AE as DVCPRO HD 1080i60)... if I bring it into AE and interpret footage: separate fields (upper) 3:2 pulldown WWWSS and it seems to go away. Does this make any sense?
Robert Behnke
I shot a video in 1080i/60 24 on a HPX500 (first time and last time I will probably do that). I am trying to remove the interlaced footage to use in Mocha and I cannot figure it out. I have tried setting pull down, trying different cadences, etc. and there still seems to be interlacing. I think this is what is killing my ability to track the footage correctly. Thanks!
Robert Behnke -- Pierre-Yves Fave 0612994425 http://www.5data.net
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