Altera Video and Image Processing Suite Uživatelský manuál Strana 188

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Address Register RO/RW Description
22 History Minimum
Value
RW The cadence bias for a given pixel. Setting a lower value
biases the pixels toward film, and setting a higher value
biases the pixels toward video. The pixel SAD values
are scaled according to the recent history that gives the
frames an affinity for their historical state.
Range: 0–3
Power on value: 3
23 History Maximum
Value
RW The cadence bias for a given pixel. Setting a lower value
bias the pixels toward film and setting a higher bias the
pixels toward video. The value for this register must be
higher than the value for the History Minimum Value
register.
Range: 3–7
Power on value: 7
24 SAD Mask RW When detecting cadences, the SAD values are AND’ed
with this value. This value allows the LSBs to be
masked off to provide protection from noise.
For example, use binary 11_1111_0000 to ignore the
lower 4 bits of the SAD data when detecting cadences.
This register works orthogonally from the Motion
Shift register (Offset 25), which affects both motion
calculation in general AND cadence detection.
Range: 512–1023
Power on value: 960
UG-VIPSUITE
2015.05.04
Deinterlacing Control Registers
12-29
Deinterlacing IP Cores
Altera Corporation
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