Chapter 1  MVS-8000 Functions
39
Basic Video Processing
Effect of use with an independent key transition
The key is inserted with an independent key transition as the background 
changes with a common transition, providing the following result.
Effect of a background transition and independent key transition
For details of transitions, see Chapter 3 “Signal Selection and Transitions” 
(page 143).
Keys
A key is an effect in which a part of the background image is replaced by an 
image or superimposed text. The signal determining how the background is cut 
out is termed “key source,” and the signal that replaces the cut-out part is 
termed “key fill.” The system component responsible for processing a key is 
referred to as a keyer.
Each switcher bank has four keyers, each providing the same functionality.
On each switcher bank, you can use the following key types (methods of 
processing the key source).
• Luminance key
• Linear key
• Color vector key
• Chroma key
• Wipe pattern key
• Key wipe pattern key
Key modifiers
You can apply borders and other modifiers to the edge of the key image.
Different wipe patterns are applied to 
the background and key transitions.
Transition type: 
wipe
Independent key 
transition type: 
wipe