Grass Valley Kameleon Series v.5.1.0 User Manual
Page 62
62
Kameleon Series Instruction Manual
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For example, if the preset decoder is set for
Mixed Motion
and lowering the
3D Motion Threshold improves the video, select the
High Motion
preset
decoder to switch to a 2D adaptive decoder type. If increasing the threshold
improves the video, switch to the
Low Motion
preset (3D decoder type).
Comb Filter
The comb filter is part of the 2D adaptive comb filter mode. It determines
what component of the video will be used to detect motion (Luma and
Chroma or just the Luma or Chroma portion of the video).
•
Luma + Chroma
– when set for both luminance and chrominance, the 2D
adaptive decoder motion detector is controlled by both the luminance
and chrominance magnitude error.
•
Luma
– in this mode, the 2D adaptive decoder motion selector is con-
trolled by only the luminance magnitude error in the video.
•
Chroma
– in this mode, the 2D adaptive decoder motion selector is con-
trolled by only the chrominance magnitude error in the video.
Luma Level
The Luma Level control sets the magnitude error threshold for the Y or
luminance component of the video signal in the comb filter. The default
value is 56.
Chroma Level
The Chroma Level control sets the magnitude error threshold for the
chrominance portion of the video signal in the comb filter. The default
value is 56.
Luma Bandwidth
The Luma Bandwidth sets the frequency at which the comb filtering occurs.
It can be set for
Narrow
or
Wide
.
•
Narrow
– extends the 2D comb filter to lower frequencies and is the
default bandwidth for the
High Motion
preset mode.
•
Wide
– allows 2D comb filtering only at higher frequencies. This is the
Mixed
and
Low Motion
default and used for 625 input video.
Note
Narrow or Wide bandwidth may be selected according to the chrominance
subcarrier frequency and chrominance bandwidth.
Reset 3D Decoder
Press the
Reset 3D Decoder to Default
to return to the default
Mixed Motion
mode
with the defaults listed in