Hi, I'm looking to perform real time face and gaze tracking using the front camera of an android smartphone. My aim is to track the user's gaze while the user moves his head from left to right and tries to maintain the gaze at a certain object on screen. I found the vision face api from Android allows me to do face tracking (or just detection?) https://developers.google.com/android/reference/com/google/android/gms/vision/face/package-summary . But, could not find something for gaze tracking. There are research reports such as this - http://uu.diva-portal.org/smash/get/diva2:847942/FULLTEXT01.pdf
Are there any APIs I can try directly? Or if I should implement algorithms, which algorithms should I look at?