from http://www.udoo.org/downloads/ select UDOObuntu_quad_v1.1.img (or the dualcore image) fit the image into a microSD card (at least 8 Gb class 10) following the guide in the download page.
when the system has booted, change use the tools "Udoo configuration" on the desktop to change keyboard layout, timezone, password, expand the filesystem
wget https://raw.githubusercontent.com/davidecaminati/EyeTracker_Raspberry2/master/install_eyetracking.sh sudo sh ./install_eyetracking.sh