Product Overview; Algorithm - Strength Of Our Solution; Setting Key Parameters - It Has Never Been So Easy - Datavideo DVK-300HD Instruction Manual

1. Product Overview

Our chroma key solution ensures a high quality keying effect in the case of both green and
blue backdrops. The key supports all popular video formats: 3 Gb/s, HD and SD. Multiple
languages are also supported such as English, Traditional Chinese, Simplified Chinese, Polish,
French, Spanish and Portuguese.
The device supports two keying modes, Chroma Key and Luma Key.
Chroma Key Mode - This function enables the DVK-300HD to be used for chroma keying.
Camera input is fed with object on a green or blue backdrop. Background is generated by PC
or any other media sources.
Luma Key Mode - This function enables the DVK-300HD to be used for luminance-based
keying. Camera input is fed with object on a black or white backdrop. Background is
generated by PC or any other media sources.
1.1 Algorithm – 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.
1.2 Setting Key Parameters – It has never been so easy
The setting of keying parameters in advanced keying equipment is a complex task. Our
solution uses a ground-breaking method of setting parameters that involves six simple steps,
through which the user is led by a setup wizard. Using this, even a relatively inexperienced
user will be able to set optimum key parameters, and the end result will be impressive. The
key makes setting fast and simple as the user can just follow 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 achieve perfect keying quality, the scene must be sufficiently lit and the camera
signal has to be of a good quality. Full capabilities can be fully utilized for high resolution
formats – HD or 3G, but very good results can also be obtained for low resolution SD signals.
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