Gaze tracking system and method

专利名称：Gaze tracking system and method发明人：Vishwas V. Tengshe,Hemant V.

Tengshe,Venkatesh G. Tengshe

申请号：US10349435申请日：20030123公开号：US06637883B1公开日：20031028

专利附图：

摘要：An eye-tracking system for displaying a video screen pointer at a point ofregard of a user's gaze. The system comprises a camera focused on the user's eye; asupport connected to the camera for fixing the relative position of the camera to the

user's pupil; a computer having a CPU, memory, video display screen, an eye-trackinginterface, and computer instructions for: segmenting the digital pixel data of the image ofthe eye into black and white sections based upon user selectable RGB threshold settings;determining the center of the eye based upon the segmented digital data; mapping thedetermined center of the eye to a pair of coordinates on the video screen; and displayinga pointer on the video display screen at the point of the regard. The processing

performed by the computer includes a fine-tuning capability for positioning the cursor atpoint on the video screen substantially overlapping the point of regard, and a gazeactivated method for selecting computer actions. The system includes additional usermounted sensors for determining the axial position of the camera, thereby compensatingfor inadvertent eye movement when the point of regard has not changed.

申请人：TENGSHE VISHWAS V.,TENGSHE HEMANT V.,TENGSHE VENKATESH G.

代理人：Richard C. Litman

更多信息请下载全文后查看