Vuzix Wrap 920AR - Manual (Page 91)

Marker Patterns
Placing a series of markers, starting with marker “s0”, and proceeding sequentially
using marks “s1”, “s2” and so forth creates a Marker Pattern. When each Static
Marker in a pattern is captured by the Wrap AR cameras, its relative position to
marker “s0” is determined allowing the position and orientation of marker “s0” to be
known at all times, even when outside the visual range of the Wrap AR cameras.
Marker Patterns always;
• start with Marker “s0”,
• use a sequential series of Static Markers, and
• are positioned such that the Wrap AR cameras simultaneously capture each
sequential pair of markers in a single video frame.
The Marker Pattern is analyzed when each sequential pair of Static Markers is seen
through the Wrap AR cameras and the maxReality Viewer application. Each
sequential pair of Static Markers must be visible in the same video frame. As an
example, the relative position of “s0” and “s1” is analyzed followed by the positioning
of “s1” and “s2”, etc.
The following illustration depicts a series of eight (8) markers, starting with marker
“s0” at the top and markers “s1” to “s7” placed in sequential order clockwise in a
circle.