Have you seen the work done with multiple Kinect cameras in 2015? https://www.inavateonthenet.net/news/article/kinect-camera-and-software-bring-eye-contact-to-

Have you seen the work done with multiple Kinect cameras in 2015? https://www.inavateonthenet.net/news/article/kinect-camera-and-software-bring-eye-contact-to-skype-calls https://www.inavateonthenet.net/news/article/kinect-camera-a... Creating a depth field with monocular camera is now possible, so that may help you get further with this.