SDA9400 Datasheet, PDF (33/94 Pages) Micronas – Scan Rate Converter using Embedded DRAM Technology Units

SDA 9400
AMMON
1X
1X
MOVMO
0
0
FRAFION
0
1
mval
FRD
FRD + FID1 + FID2
Input write parameter
Parameter
AMMON
FRAFION
Subaddress
1Ch
1Ch
Description
Automatic movie mode for the motion detection for scan
rate conversion
Frame or field based motion value for scan rate conver-
sion
The postprocessing block has the task to delete isolated groups of set motion flags (erosion) and to
homogenize the motion areas in horizontal and vertical direction that correspond to a moving object
(extension, smearing). The table below shows the several parameters in sequence. They can be
switched off (1) or on (0). It is recommended to enable all parameters.
Input write parameter
Parameter
HPE1OFF
VLEROFF
HPS1OFF
HPE2OFF
HPEXOFF
VLEXOFF
Subaddress
21h
22h
23h
24h
25h
26h
Description
Horizontal pixel erosion 1
Vertical line erosion
Horizontal pixel smearing 1
Horizontal pixel erosion 2
Horizontal pixel extension
Vertical line extension
6.3.7 Global motion, movie mode and phase detection
The global motion detection is used to generate a global motion value GMOTION. GMOTION is a
one bit signal and can be read out by the I²C-bus. GMOTION equal zero means, the complete
picture is still, GMOTION equal one means, there is motion in the picture. This value can also be
used internal to switch between different scan rate conversion algorithms (see also Output sync
controller (OSC) on page 40).
Furthermore a movie mode (MOVMO) and phase (MOVPH) detector is included. MOVMO and
MOVPH are one bit signals and can be read out by I²C-bus or can be used internal to influence the
motion detection for scan rate conversion as well as the scan rate conversion itself (see also Output
sync controller (OSC) on page 40). The diagram below shows the block diagram of the global
motion, movie mode and phase detection algorithm.
Micronas
33
Preliminary Data Sheet