Sunday, June 15, 2008

Live Compositing Challenge to Steve Wright

I will shoot 3 sequences of high resolution progressive footage:

1. An airplane flying across the sky and disappearing behind the edge of a building.
2. The same building as in #1 with no airplane.
3. An airplane flying across the sky all by itself.

I'll remove the background from #3, leaving an airplane flying against a transparency, and color correct it as I see fit.

I will arrange time at a video editing room with an AVID symphony or similar. I'll arrive with the 3 video files. My goal will be to, in real-time, using real-time luma key, insert the airplane in #3 into video #2, and make it appear to fly across and disappear behind the edge of the building. We'll convert the composited output to NTSC, and also convert video #1 to NTSC.

I'll end up with two NTSC interlaced videos, both showing an airplane crossing the sky and disappearing behind a building edge. The test will be to see if Steve Wright can identify which video is the composite, and to point out any:

1. Mismatched interlace scan lines.
2. Color disagreement.
3. Harsh edges.
4. Differences in video noise between airplanes and building.

2 comments:

Anonymous said...

very nice challenge, I hope he accepts it and that we may see the results.

Keep up the good work Ace

Shallel said...

Sounds fair enough, for the expert.

Might be a good experiment to do varying levels of compression and some vhs dubs to see at what point
the ability to distinguish real from composite is lost.

Peace