Quote:
Originally Posted by andy
Apparently, it only records every third field. That can't look very good, but it would be interesting to see.
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It looks reasonable for live source material (30 frames / 60 fields per second), which comes out rendered somewhat like a movie. But film material (24 fps), which is normally transmitted in analog as 3/2 pulldown (each movie frame shown by alternating 3 fields / 2 fields) results in a whole movie frame being missed four times a second (ratio of 20/24), which results in very strong jerky sort of motion rendition. The commercially recorded movies for Cartrivision used blended movie frames 4 times a second so two movie frames would be blurred together rather than missing one - still rather poor, but acceptable, especially if no one ever pointed it out to you.
They showed potential partners the results with and without the blending. The main example was from The Graduate, a scene where Dustin Hoffman is hesitating to go through a revolving door because of people coming out. Without the blending, the door seemed to jump back and forth instead of rotating in one direction. In the lab at Motorola, we happened to record a film commercial for a golf resort. The golfer made his putt, but the ball disappeared just before dropping in the cup. Everyone noticed that without being prompted.