OpenGazer vs WebGazer.js
OpenGazer
github.comWebGazer.js
webgazer.cs.brown.eduSide by side
| Figure | OpenGazer | WebGazer.js |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Linux | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Eye Tracking Software | 7.9 (#11) | 6.8 (#26) |
| Calibration | Calibration asks the user to look at screen points while keeping their head still. | Its model self-calibrates by observing interactions with the page, including clicks and cursor movements. |
| License | The repository lists the GNU GPL version 2.0 license. | The official site lists WebGazer.js under the GPLv3 license. |
| Purpose | OpenGazer is an open-source gaze tracker designed for ordinary webcams. | WebGazer.js uses ordinary webcams to estimate web visitors’ gaze locations on a page in real time. |
Plans
In their own words
OpenGazer
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.
WebGazer.js
WebGazer.js has no write-up on Specifiction yet; its figures are above.