With
a global economy and the multi-channel universe already here and
digital TV on the way, demand for new programming has never been
so high. To meet this demand, a massive amount of film must be converted
to video for broadcasting. This makes it critical that a system
be developed capable of producing high-quality PAL and NTSC masters
without the high costs or degradation in quality caused by standards
conversion. In cooperation with the Fox Broadcasting Network and
QuadOne, JVC is now developing a 25/24 frame switchable VTR as part
of a system to post TV broadcasting content originally shot with
film using video.
When
developing this system, we focused on the fact that the PAL system's
25 frames per second is very close to the 24 fps rate used in film.
By using a switchable 24/25 fps D-9 576P VTR for recording, high-quality
PAL and NTSC edited video masters can be produced with none of the
3:2 pulldown artifacts, picture jitter, or loss of resolution found
in current systems.
Comparison with current systems
Unlike
current systems, JVC's new D-9 based system does not use 3:2 pulldown
for telecine conversion and transfers film to a high-quality 25-frame
D-9 VTR. After post is complete, the high resolution PAL master
is played back at 24 fps and 3:2 is added for conversion to a high-quality
NTSC master. Thus, high-resolution PAL masters without 3:2 artifacts
and high-quality NTSC masters without picture jitter can be obtained.
Just as important, it is not expensive as post can be realized using
standard NLE systems. This system does not require dedicated expensive
film NLE
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