公开(公告)号：US20220083799A1

公开(公告)日：2022-03-17

申请号：US17459442

申请日：2021-08-27

申请人： Tobii AB

发明人： Viktor Wase ,  Erik Ljungzell ,  Mark Ryan ,  Chiara Giordano ,  Rickard Lundahl ,  Pravin Kumar Rana

IPC分类号： G06K9/20 ,  G06K9/00 ,  G06T7/70 ,  G06K9/32

摘要： An eye tracking system is provided that detects the presence of problematic blobs in an image captured by the system and removes these problematic blobs by switching off illuminators. Problematic blobs may be those obscuring the pupil of the eye of the user. Each blob is detected in a first image by the use of at least one first criterion, and then an illuminator is switched off. After the illuminator is switched off, at least one second criterion is used to identify blobs in a subsequent image. This process may be repeated until the illuminator causing the problematic blob is identified.