Evs XT2 Version 11.01 - November 2012 Configuration Ma Uživatelský manuál stáhnout pdf (Strana 98)

3.3.4. Interpolation Settings

Introduction

The Interpolation settings are available on the Server tab in the server-based application

page) and web-based interface in the advanced mode.

The Interpolation settings are highlighted in the screenshot of the server-based application

shown below:

General Description

The interpolation process aims at reducing the vertical jitter of the pictures that is present

during slow-motion replays. This vertical jitter is actually caused by a violation of the

frame parity when playing back the pictures at less than 100 % speed.

The process consists in re-building new frames to produce a more transparent result.

These frames have to be interpolated, that is calculated by making suitably weighted

averages of adjacent lines.

There are two interpolation modes: the two-line interpolator and the four-line interpolator.

They are not mutually exclusive:

• The two-line interpolator reduces the vertical jitter, but also the vertical bandwidth.

• The four-line interpolator makes it possible to have perfectly steady pictures, but

reduces even more the vertical bandwidth.

Note

All VTRs use interpolation in PLAY VAR mode.

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Evs XT2 Version 11.01 - November 2012 Configuration Ma Uživatelský manuál Strana 98