ADV8003 Hardware Manual
Rev. B, August 2013
166
Bit
Disabled Cadence
0xE8FA[5]
5:5
0xE8FA[6]
6:4
0xE8FA[7]
8:7
3.2.3.6.
CUE Correction
Color Upsampling Error (CUE) correction is implemented using a filter which removes the jagged edges caused by the artifacts
introduced by the incorrect upsampling of MPEG 2 video data in 4:2:0 format to the 4:2:2/4:4:4 formats supported by DVD players.
The CUE correction function can be enabled or disabled by
di_cue_enable
, Primary VSP Map,
Address 0xE84D[0]
This bit is used to enable CUE correction.
Function
di_cue_enable
Description
0
Disable CUE correction
1
Enable CUE correction
3.2.3.7.
Random Noise Reduction
There are several noise reduction algorithms in the ADV8003 that help with the reduction of common sources of video noise. The
random noise reduction (RNR) block reduces the random noise which may be introduced in analog broadcasting or capturing. It employs
a temporal recursive algorithm to stabilize the static regions while just processing the luma channel. Users can configure the register
parameters to adjust the algorithm according to their preference. The amount level of RNR can be configured using
RNR supports both interlaced and progressive input. It can be enabled or disabled using
di_rnr_enable
, Primary VSP Map,
Address 0xE84C[4]
This bit is used to enable random noise reduction (RNR).
Function
di_rnr_enable
Description
0
Disable RNR
1
Enable RNR
di_rnr_level[1:0]
, Primary VSP Map,
Address 0xE84F[1:0]
This signal sets the RNR level.
Function
di_rnr_level[1:0]
Description
00
N/A
01
Low
10
Middle
11
High
For the RNR feature to operate, two buffers in external memory must be allocated to store video information which will be used for noise
reduction purposes. The addresses of these two buffers can be set in the
and
The size of each buffer should be larger than RNR_BUF_SIZE, which can be calculated as shown in
Summary of Contents for ADV8003
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