SDA9410
5.4.3
Preliminary Data Sheet
Input signal processing
Noise reduction
The figure below shows a block diagram of the spatial and temporal motion adaptive
noise reduction (first order IIR filter). The spatial noise reduction is only performed on the
luminance signal. The structure of the temporal motion adaptive noise reduction is the
same for the luminance as for the chrominance signal.
SNRON
YR
Spatial
Field
YIN
noise
delay
reduction
YSNR
DY
TNRCLY,
TNRHOY,
TNRKOY,
TNRVAY,
TNRFIY,
NRON
1
0
KY
Frame
delay
Motion
DTNRON
detector
YOUT
UVOUT
TNRCLC,
TNRHOC,
TNRKOC,
TNRVAC,
TNRFIC,
NRON
KUV
1
Frame
delay
Motion
detector
0
TNRSEL
0
1
DUV
Field
UVIN
DTNRON
delay
UVSNR
UV1
Figure 15
Block diagram of noise reduction
5.4.3.1 Spatial noise reduction
Normally a spatial noise reduction reduces the resolution due to the low pass
characteristic of the used filter. Therefore the spatial noise reduction of the SDA 9410
works adaptive on the picture content. The low pas filter process is only executed on a
homogeneous area.
I²C Bus parameter
Sub address
Description
SNRON
1: on
1Ah
Spatial noise reduction of luminance signal
0: off
Table 21
Input write I²C Bus parameter
40
Micronas
MICRONAS [ MICRONAS ]
