參數(shù)資料
型號: SDA9401
廠商: Electronic Theatre Controls, Inc.
英文描述: Scan Rate Converter using Embedded DRAM Technology Units
中文描述: 掃描頻率轉(zhuǎn)換器采用嵌入式DRAM技術(shù)股
文件頁數(shù): 22/69頁
文件大小: 1142K
代理商: SDA9401
Micronas
22
Preliminary Data Sheet
SDA 9401
Block diagram of spatial noise reduction
Input write parameter
In case of VDECON>0 or HDECON>0 or MULTIPIC>0 (see also
chapter Vertical compression
on
page 16, see also
chapter Horizontal compression
on page 17, see also
chapter Multipicture
display
on page 18) spatial noise reduction is not possible.
6.3.4.2
Motion adaptive temporal noise reduction
The equation below describes the behaviour of the temporal adaptive noise reduction filter. The
same equation is valid for the chrominance signal. Depending on the motion in the input signal, the
K-factor Ky (Kuv) can be adjusted between 0 (no motion) and 15 (motion) by the motion detector.
The K-factor for the chrominance filter can be either Ky (output of the luminance motion detector,
TNRSEL=0) or Kuv (output of the chrominance motion detector, TNRSEL=1).
Parameter
Subaddress
Description
SNRON
1: on
0: off
VCSNRON
1: on
0: off
HCSNRON
1: on
0: off
1Dh
Spatial noise reduction of luminance signal
1Dh
Vertical spatial noise reduction of chrominance
1Dh
Horizontal spatial noise reduction of chrominance
YIN
LM
LM
Edge
detection
LP
YSNR
SNRON
n
1
0
LM
LM
UVIN
LP
LP
VCSNRON
1
0
HCSNRON
UVSNR
1
0
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