{"id":13194,"date":"2023-02-27T11:57:36","date_gmt":"2023-02-27T10:57:36","guid":{"rendered":"https:\/\/2023.est-kl.com\/art-markers\/"},"modified":"2026-03-16T11:05:53","modified_gmt":"2026-03-16T10:05:53","slug":"art-markers","status":"publish","type":"post","link":"https:\/\/www.est-kl.com\/de\/art-markers\/","title":{"rendered":"MARKERS"},"content":{"rendered":"\n

MARKERS<\/h3><\/div>\n\n\n\n
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ACTIVE AND PASSIVE VERSIONS AVAILABLE<\/h5><\/div>\n\n\n\n

Active markers<\/strong> are infrared light emitting elements, mostly LEDs. All active markers provided by ART are just emitting radiation when the tracking cameras are sensitive, thus have to be synchronised with the cameras. Synchronisation can be done by a wired connection between the tracking system and the electronics controlling the active markers, but can also be done in a wireless way: For wireless synchronisation a coded IR flash is sent out by a tracking camera. The active markers\u2019 electronics recognise the coded flash and activate the LEDs.<\/p>\n\n\n\n

Passive markers<\/strong> are retroreflective, i.e. they reflect the incoming IR radiation into the direction of the incoming light.<\/p>\n\n\n\n

Both active and passive markers will give the 3DOF (3 degrees of freedom), and can be either spherical or flat.<\/p>\n\n\n\n

ACTIVE MARKERS<\/strong><\/h5><\/div>\n\n\n\n

In ART tracking systems four types of LED-based active markers are used, depending on the application.
All active markers provided by ART are controlled by special electronics and need power supply.<\/p>\n\n\n\n

Single LEDs<\/strong><\/h6><\/div>\n\n\n\n