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Chroma Key; "The process of overlaying one video
signal over another, the areas of overlay being defined by a specific
range of colour, or chrominance, on the background signal" (Quantel
Digital Factbook).
Ultimatte's AdvantEdge
is one of the premier chromakeying plug ins, more information is collected
below. You can also buy AdvantEdge
online. If there is any additional information missing from these
pages that you think is relevant, please feel free to send an email
to info@chromakey.tv.
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An Animated Video Background is used frequently in chromakeying
as backgrounds behind chroma keyed talent. An Animated Video Background
is simply an animation played behind your chroma keyed talent. Animated
Video Backgrounds are great for head shots and medium shots for interviews.
There are a lot of Animated Video Background libraries available like
Digital Juice, and virtual
sets which take Animated Video Backgrounds like Virtualsetworks.
Products like these can be great for polishing up an otherwise boring
interview.
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Using Animated Video Backgrounds for mobile chroma
keying applications is a great solution. You can take a product like
the Chromatte
Chromaflex which is a very portable lightweight
chroma keying solution which, unlike traditional chroma key techniques,
requires very little lighting to use making it perfect for chroma
keying on the go. One would simply take a Chromaflex with them to
the interview and bring back the unkeyed footage and Chroma key an
Animated Video Background behind the interviewed talent with whatever
chromakeyer is being used in the studio like an Ultimatte or Serious
Magic's Ultra Key.
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Having a large collection of Animated
Video Backgrounds is necessary if you do lots of chroma keying
of tight and medium shot interviews. Diversity of Animated Video Backgrounds
helps assure that you will have a background to fit the topic, yet
not overwhelm the talent and draw focus away from the subject. Animated
Video Backgrounds should also loop seamlessly in order that viewers
never see a jump in the image behind the talent.
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