OGAMA vs OpenGazer

OGAMA is Windows freeware for recording and analyzing eye-tracking and mouse-tracking data in slideshow experiments. It supports direct recording with Tobii, alea and SMI systems, along with the open-source ITU Gazetracker solution. Gazetracker can use infrared-ready webcams or a modified PlayStationEye camera. OGAMA can also import ASCII recordings from eye-tracking and presentation software or hardware. Its analysis tools include database-driven preprocessing and filtering, attention maps, areas of interest, saliency calculations, Levenshtein distances, and replay with AVI recording. Output can be used directly with statistical software packages. OGAMA is an open-source project written in C#.NET, and users can adapt its code. The maintainer announced in May 2016 that they had stopped supporting the project because they no longer had time for support and feature requests.

OpenGazer is a Linux application that uses an ordinary webcam to estimate gaze direction and send it to other programs. It also tracks head position and rotation, and displays the estimated gaze point, head-rotation lines, and calibration target. Setup calls for a camera at 640×480, placed centrally below the monitor. Users calibrate by looking at indicated screen points while keeping their head still, then choose facial tracking points; the project calls for at least four and recommends seven or eight. Gaze estimates appear on screen, print to standard output, and are sent through a local UDP socket on port 20230. Dasher is an example of software that can use the gaze direction for writing with the eyes. OpenGazer is free under GPLv2 and uses the X Window System interface. It is marked Alpha, with a last update listed as 2013-04-24. Building it requires VXL, OpenCV, gtkmm, cairomm, and Boost.