US 2008/0186449 A1 · GAZE TRACKING USING MULTIPLE IMAGES

Abstract

Systems and methods for facilitating gaze tracking based on multiple images are disclosed. A gaze tracking system includes an optical module configured to receive illumination from a target and provide a background and tracking channel outputs, the background channel including ambient illumination and the tracking channel including ambient and controlled added illumination at a targeted range of wavelengths. The background and tracking channel outputs are provided to an imaging module configured to provide an associated set of background and tracking images to a processor module to facilitate gaze tracking. Controlled illumination of the target may be provided by an illumination element, in conjunction with the processor module, to facilitate gaze tracking.

Claims33

Dependent claims

A gaze tracking system comprising:

an optical module disposed to receive, from a target, illumination including an ambient light component and a controlled light component, and provide a background output and a tracking output, said background output consisting substantially of the ambient light component and said tracking output including the ambient light component and the controlled light component;
an imaging module disposed to receive the tracking output and the background output and provide a set of images based on the tracking output and background output;
and
a processor module disposed to:
receive the set of images;
provide, based on the set of images, gaze tracking data;
and
store, in a processor readable memory, the gaze tracking data.

5 more elements

Dependencies are inferred from the claim text.

Gaze tracking using multiple images

Life of this patent

Gaze tracking using multiple images

Life of this patent

Abstract

Claims33