Coded LED Marker Set

Accurate projection mapping requires calculation of the projection geometry and measurement of the projection area. For these photogrammetrical measurements we use different kinds of active or passive markers. Often we use active LED or laser markers to calculate the projection geometry. With our new active Coded LED Markers a projection setup can be matched easily and more reliably. Especially for an automated recalibration with our ProjectionTools AutoAlignment system, a reliable and fast recognition of each marker is essential. During the AutoAlignment process the markers are automatically detected using their unique identifiers, thus further reducing the probability of failure.

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Coded_LEDs_Torso

We use active LED or laser markers to automatically detect the position of cameras for an AutoAlignment. Previously they were controlled via commercially available switchable sockets. Our new active coded LED markers can be connected directly via Ethernet. The interface is integrated into our ProjectionTools. For up to 20 markers power can be supplied via PoE or a separate power supply. If more than 20 markers are required an extra power supply is necessary.
During the AutoAlignment process the markers are detected automatically using their unique identifiers, thus further reducing the probability of failure.

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Coded markers are supplied as a complete module with cabling and a controller. The controller facilitates the assignment and management of the markers’ identifiers.

Basic set Advanced set Power set
Housed Markers 6 20 individual number
Controller 1 1 can be cascaded
Cables 6 20 sufficient amount
Power Supply PoE PoE external power supply

Coded LED markers can be installed into the screen. It is possible to paint over the markers with a layer of colored paint. When switched off these markers are invisible.

LED-Marker red light LED-Marker green light LED-Marker switched off
red light green light switched off

The markers can be produced in different forms. The standard form is the housed marker version.

marker board marker cuboid marker cylinder
Marker board Marker cube Marker cylinder


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