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Eye gaze detection with multiple light sources and sensors

A light source and eye technology, applied in the direction of eye testing equipment, acquisition/identification of eyes, user/computer interaction input/output, etc., can solve problems such as not being particularly usable

Active Publication Date: 2016-08-31
MICROSOFT TECH LICENSING LLC
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  • Abstract
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Problems solved by technology

This technique is therefore of limited use as it is not particularly available in many situations, including in increasingly popular mobile computing scenarios

Method used

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  • Eye gaze detection with multiple light sources and sensors
  • Eye gaze detection with multiple light sources and sensors
  • Eye gaze detection with multiple light sources and sensors

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Embodiment Construction

[0022] Various aspects of the techniques described herein generally involve significantly increasing the workspace for eye gaze detection, including by placing multiple infrared (IR) light sources (eg, LEDs) and sensors (IR-sensitive cameras) around the display. A calculation method is also provided that utilizes any available detection information regardless of the number of LED reflections seen by the camera and the number of cameras seeing the eye.

[0023] As a benefit, eye gaze detection works even when the device display is in any orientation relative to the user, which is expected for tablets, mobile computing devices, and smartphones, among others. Similarly, eye gaze detection can function at a wide range of angles. For example, even when the user is holding the device at any of a variety of angles relative to the user's eyes, or a laptop computer (or even a fixed display) can have its screen at different angles relative to the user's eyes, Eye gaze detection also re...

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Abstract

The subject disclosure is directed towards eye gaze detection based upon multiple cameras and / or light sources. The cameras and / or light sources are configured to provide eye gaze detection for a device display at different orientations, at different tilt angles, at different user positions, at different user distances, and so on. Also described is a controller that selectively controls light source power and camera on / off state to provide images of the eye having sufficient quality for eye gaze detection and / or to conserve power.

Description

Background technique [0001] As computers have evolved, including mobile devices, handheld devices, and related technologies such as displays, human input mechanisms have similarly evolved. Natural user interfaces such as voice-based recognition, head and skeletal tracking, and gesture detection are gaining popularity to supplement or in some cases replace keyboards, pointing devices (mouse or stylus), and / or recognized symbol / handwriting input. [0002] Eye gaze detection is another natural user interface technique. Eye gaze detection is desirable for natural multimodal human-computer interaction, among other reasons. [0003] With respect to computer displays, existing eye gaze detection efforts have very limited working space, such as having small boxes around the calibration location in front of the display, where the eye gaze tracker needs to be placed below the display. This technique is therefore of limited use as it is not particularly available in many situations, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01
CPCG06F3/013A61B3/113G06F1/3231G06V40/19G06V40/193
Inventor 张正友A·古普塔蔡琴
Owner MICROSOFT TECH LICENSING LLC
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