PEDL87V21071-01
OKI Semiconductor
ML87V21071
2.1.4 Motion Compensation Processing
This IC performs the motion compensation described below in c and d for the noise detected in Section 2.1.2 It
does this by creating the motion compensation flags YMA[3:0] and CMA[4:0] from the motion flags (YMT,
YMT3, YMT4, YMT5, and CMT) detected in Section 2.1.3, the motion compensation stop settings YMOFF[3:0]
(SUB:51h-bit[3:0]) and CMOFF[4:0](SUB:52h-bit[4:0]), and the luminance linked chrominance motion
compensation setting CMY (SUB:52h-bit[7]).
Table F2-1-4 (1) Motion Compensation Flags
Motion
compensation flag
Composite signal
YMT&YMOFF[0]
Remarks
Luminance adjacent pixel level luminance
motion compensation
YMA[0]
Luminance
motion compensation
Luminance continuous codes luminance
motion compensation
Luminance continuous codes luminance
motion compensation
Chrominance adjacent pixel level chrominance
motion compensation
Luminance adjacent pixel level chrominance
motion compensation
Luminance 3 continuous codes chrominance
motion compensation
Luminance 4 continuous codes chrominance
motion compensation
Luminance 5 continuous codes chrominance
motion compensation
3 continuous codes luminance
YMA[1]
YMA[2]
YMA[3]
CMA[0]
CMA[1]
CMA[2]
CMA[3]
CMA[4]
YMT&YMOFF[1]
4
YMT&YMOFF[2]
5
YMT&YMOFF[3]
CMT&CMOFF[0]
YMT&CMOFF[1]&CMY
YMT3&CMOFF[2]&CMY
YMT4&CMOFF[3]&CMY
YMT5&CMOFF[4]&CMY
c Luminance Signal Noise Motion Compensation
This feature performs motion compensation for the detected noise using the motion compensation flag
YMA[3:0].
As the method of motion compensation , you can select the reduction mode (YNRM = 0) or the noise 0 mode with
YNRM(SUB:4Ah-bit[0]).
In the reduction mode, you can choose the normal reduction mode (YABN = 0) or the absolute noise reduction
mode (YABN = 1) in register YABN(SUB:4Ah-bit[2]).
Table F2-1-4 (2) Luminance Motion Compensation Modes
Motion compensation
YNRM
YABN
Remarks
mode
X
0
X
0
None
Detected noise as is
(Detected noise) x
(Reduction coefficient)
(Detected noise) x
(Reduction coefficient)
Noise 0 judgment
(NROFF)
Normal reduction
Absolute noise reduction
Noise 0
0
1
1
X
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