Vol. 50 No. 12 2889–2893 (Dec. 2009) †1 †1 ObjectCam2 LED 1 A Real-world Objects Recognition System Employing “Invisible” Visual Markers Yuki Nota†1 and Yasuyuki Kono†1 This paper describes a vision-based method for detecting and identifying real-world objects in front of the users. We use invisible markers splayed with lucent and retro-reflective paint to detect objects. This marker is invisible f