Deinterlacing - HELIX Broadcaster 100 User Manual

Helix Broadcaster 100 Touch Screen User Guide
Dropping Frames
Helix Broadcaster provides several options to drop frames and achieve a lower frame rate.
Dropping frames may make the video appear jerky, however.

Deinterlacing

Deinterlacing removes jaggedness from certain video sources. Typically you can leave this field
set to its default value of
input stream as needed. If you have specific requirements, you can use the drop-down to turn
off deinterlacing or choose a specific method of deinterlacing.
Deinterlacing
What is Deinterlacing?
An NTSC video camera running at 30 frames per second captures the odd-numbered lines of a
field in 1/60th of a second and the even-numbered lines in the next 1/60th of a second. It then
interlaces the two to create the frame. Because half of the field's lines are captured a fraction of
a second later than the other half, fast-moving objects may appear jagged. This is the result of
the object advancing slightly within 1/60th of a second. Deinterlacing removes this jaggedness.
Detail of Interlaced Video (left) and Deinterlaced Video (right)
. In this case Helix Broadcaster automatically deinterlaces the
Auto
Deinterlacing doubles the video frame rate. For example, it turns 30
Tip:
frames-per-second NTSC video into a 60 fps output. To drop added frames,
select
Drop 1 out of every 2 frames
CHAPTER 4: Video and Audio Options
in the drop-down (see page 27).
Framerate
28