PEDL87V21071-01
OKI Semiconductor
ML87V21071
Table F2-1-4 (3) Noise Reduction Coefficients
YMA
[2]
Reduction coefficient
[3]
0
0
0
0
0
0
1
1
[1]
0
0
1
1
1
1
1
1
[0]
0
1
0
1
0
1
0
1
YABN = 0
1
YABN = 1
1
0
0
0
0
1
1
1
1
1/2
3/4
1/2
3/4
1/4
5/8
1/4
5/8
1/8
1/8
1/16
9/16
9/16
17/32
d Chrominance Signal Noise Motion Compensation
This feature performs motion compensation for the detected noise using the motion compensation flag CMA[4:0].
As the method of motion compensation , the reduction mode (CNRM = 0) or the noise 0 mode (CNRM = 1) can be
selected by CNRM (SUB:4Bh-bit[0]).
In the reduction mode, the normal reduction mode (CABN = 0) or the absolute noise reduction mode (CABN = 1)
can be selected by CABN (SUB:4Bh-bit[2]).
Table F2-1-4 (4) Chrominance Motion Compensation Mode
CNRM
X
CABN
X
Motion compensation mode
None
Remarks
Detected noise as is
(Detected noise) x
(Reduction coefficient)
(Detected noise) x
(Reduction coefficient)
Noise 0 judgment
(NROFF)
0
0
1
0
1
X
Normal reduction
Absolute noise reduction
Noise 0
Table F2-1-4 (5) Chrominance Normal Reduction Mode Noise Reduction Coefficients
CMA
[2]
0
Reduction coefficient
[4]
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
[3]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
[1]
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
[0]
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CABN=0
1
CABN=1
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1/2
3/4
1/2
3/4
1/4
5/8
1/2
3/4
1/4
5/8
1/4
5/8
1/8
1/4
9/16
5/8
1/8
1/8
9/16
9/16
17/32
9/16
17/32
17/32
1/2
1/16
1/8
1/16
1/16
0
37/123
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