Datavideo DVK-300HD Quick Start Manual page 21

Hd chroma keyer
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Introduction
Thank you for choosing our product
DVK-300HD
Our chromatic key solution ensures a high quality keying effect in the case of both green and blue
background. The key supports all popular video formats: 3 Gb/s, HD and SD.
Algorithm – a strength of our solution
The principal component of the key is a unique algorithm that has been developed and improved
by our company for several years now. This long-term optimization of the algorithm allows us to
offer you a combination of a very good picture quality and an exceptional speed of operation.
Setting key parameters has never been so easy
The setting of keying parameters in advanced keying equipment is a complex task. Our solution
uses a groundbreaking method of setting parameters that involves six simple steps, through which
the user is led by a special setting creator. Thanks to this, even a relatively inexperienced user will
be able to set optimum key parameters, and the end result will be impressive. The key is set quickly
and as simply as possible, just by following the steps listed below.
1.
Selection of the keying colour and setting of the key mask
2.
Correction of edges and sharpness of objects
3.
Removal of keying colour remains (Despill)
4.
Additional quality-boosting correction
5.
Limitation of the mask area
6.
Matching of the object to the conditions of the virtual background
In order to ensure the perfect keying quality the scene has to be correctly lit and the camera signal
has to be of good quality. Full capabilities can be achieved for high resolution formats – HD 3G,
but very good results can also be obtained for low resolution SD signals.
DVK-300HD
5

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