3:3:2 advanced pull-down, Ab c d – Apple Final Cut Pro 6 User Manual
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2:3:3:2 Advanced Pull-Down
Camcorders such as the Panasonic AG-DVX100, the Panasonic AG-HVX200, and the Canon
XL2 use this method to store 23.98 fps video within interlaced 29.97 fps footage. Video
frames 1, 2, 4, and 5 in the pull-down pattern represent film frames A, B, C, and D.
Removing advanced pull-down is more efficient than removing standard 2:3:2:3 pull-down
because no deinterlacing is required. To remove advanced pull-down, video frame 3 in the
five-frame pattern is simply discarded during capture or ignored during playback.
Another feature that makes advanced pull-down removal more efficient is the insertion
of “flags” in the video signal that can be used by software to automatically detect which
frames must be removed. This makes advanced pull-down an automatic process
compared to the manual cadence identification usually required to remove 3:2 pull-down.
A
B
A
B B
C
C
C D D
A A B B B C C C D D A A B B B C C C D D A A B B
C C C D D A A B
B
B
C
C
C D D A
B
A
B B
C
C
C D
B
D
A
B
A
B B
C
C
C D D
A A B B B C C C D D A A B B B C C C D D A A B B
C C C D D A A B
B
B
C
C
C D D A
B
A
B B
C
C
C D
B
D
Before
(23.98 fps)
A
B
C
D A
D A
B
C
D A
B
C
D A
B
C
D
A B
C D
B
C
A
B
C
D
A A
B
B
C
D
D
Field
1
Field
2
Field
1
Field
2
Field
1
C
Field
2
Field
2
Field
1
B
Field
1
C
Field
2
A
B
C
D A
D A
B
C
D A
B
C
D A
B
C
D
A B
C D
B
C
2:3:3:2 Pull-Down
After
(29.97 fps)
Before
(29.97 fps)
After
(23.98 fps)
One second
2:3:3:2 Pull-Down Removal
A
B
C
D
A A
B
B
B
C
C
C
D
D
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2