Line Doubling; Summary - Sony LUMA Product Information Manual

5
LUMA monitors in professional applications

- Line Doubling

'Line Doubling' is one of the most commonly used
I/P conversion methods in conventional systems.
To create a progressive frame from an interlace
field, the existing lines adjacent to the absent lines
are simply copied. The advantage of this method

- Summary

The following is a quick-reference chart that
provides a comparison between the three I/P
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Product Information Manual Sony Professional LCD Monitors
X-Algorithm
Accurate Motion Detection
Current field + Previous field
(Inter-field process)
Smooth Motion & Still Images
0.5 Frame Process Delay
Figure 5-6. Line Doubling
Table 5-1. Picture Quality Comparison
X-Algorithm
Motion image
Still image
Process Delay
is that it is technically simple and is achieved with
minimal signal delay. However, since it is not
picture-content adaptive and because lines are
simply copied, it can often introduce jaggy noise
along picture edges.
Line Doubling Line Doubling
Input Video Signal
Line Doubling
Anti-Jaggy calculation
(Intra-field process)
Smooth Motion Images Jaggy Picture edges
Less Process Delay Less Process Delay
conversion methods available on high-end
separate type LUMA Series monitors.
X-Algorithm with no
motion detect
Line copy
(Intra-field process)
Line Doubling