How to get accurate results?
Simple tricks to get the highest quality results from webcam eye-tracker.
To get the best webcam eye-tracking results, please follow these simple recommendations:
- Webcam MUST be mounted on a screen that displays stimuli. Webcam image MUST be very steady - make sure the whole setup does not shake, eg. do not keep laptop on your knees.
- Panelist MUST sit in front of the webcam. Webcam SHOULD be slightly below panelist's eye level.
- Panelist's face SHOULD be in good lightning. The lightning SHOULD NOT change during the whole test. There MUST be only one face catched by the webcam.
- Panelist's eyes MUST be clearly visible in webcam video. Panelist's face size SHOULD be at least 1/3 of webcam picture. We recommend panelist NOT TO wear glasses if possible. Glasses MUST NOT limit pupils visibility for the webcam.
- Panelist SHOULD sit comfortably and SHOULD try to keep head still. It is highly recommended to use a chair with head rest - Panelist should rest her/his head. Otherwise Panelist could support his/her head on his/her arm.
- The test SHOULD be run on a webcam providing good image quality: resolution at least 640x480, low image granularity. We recommend at least 720p@30 FPS webcam.
- The test SHOULD be run in Google Chrome web browser. Web browser SHOULD have only one tab/windows with the eye-tracking test to make sure most of the CPU power is available for the eye-tracking AI.
- The test SHOULD be run on a fast, modern PC/Mac. At least 3 GHz two-core Intel i5. This requirement is met by most PC/Mac/Laptops released after 2017. If you are using a laptop, it SHOULD be plugged to the power adapter to make sure full CPU power is available.
What accuracy can you get with the right setup?
Even 4 degrees.
Here's a video comparing our solution to hardware eye-tracker:
For more details please check the following articles abou webcam eye-tracking: