Altera Video and Image Processing Suite - Manual (Page 185)

Address Register RO/RW Description
4
3:2 Cadence State
(VOF State)
RO Indicates overall 3:2 cadence state. May be a decoder to
determine whether the core is performing a weave with
previous or incoming field.
• 0 indicates that no 3:2 cadence is detected.
• 2 indicates weave with previous field.
• 3 indicates weave with incoming field.
Range: 0–3
Power on value: 0
5
3:2 Cadence Film
Pixels locked
RO Number of pixels displaying film content in a given
field.
Range: 0–(2
32 –1)
Power on value: 0
6
Motion in field
RO Total motion detected in the current field, computed
from the sum of absolute differences (SAD) in Luma to
the previous field of the same type, plus the Luma SAD
of the previous field, and the next field, divided by 16.
Range: 0–(2
32 –1)
Power on value: 0
7
3:2 Cadence VOF
Histogram Total
Phase 1
RO
Histogram of locked pixels, that is used for debugging
purposes before the VOF lock. Indicates the number of
pixels showing the presence of a potential cadence for
this phase. If one phasing shows more pixels with a
cadence present compared to other phasing by a factor
4 or more, all pixels in the field will be locked. Reverse
telecine on per-pixel basis will commence
VOF Lock
Delay
fields after the lock.
Range: 0–(2 32 –1)
Power on value: 0
8
3:2 Cadence VOF
Histogram Total
Phase 2
9
3:2 Cadence VOF
Histogram Total
Phase 3
10
3:2 Cadence VOF
Histogram Total
Phase 4
11
3:2 Cadence VOF
Histogram Total
Phase 5
12-26 Deinterlacing Control Registers
UG-VIPSUITE
2015.05.04
Altera Corporation Deinterlacing IP Cores
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