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Eye-Tracking Tech in the Samsung Galaxy S4? Say What?

If the Samsung Galaxy S4 rumors pan out, Samsung's newest smartphone may let people interact with the screen using just their eyes

If you believe the rumors, the successor to the Samsung Galaxy S3 (pictured) could scroll up and down based on your eye movements.

(Credit:

Josh Miller/CNET)

If the Samsung Galaxy S4 rumors pan out, Samsung's newest smartphone may let people interact with the screen using just their eyes.

Join CNET on Thursday, March 14 at 3 p.m. PT / 6 p.m. ET for live coverage of the Samsung Galaxy S4 event

Eye-tracking uses the camera to lock onto the motion of a user's peepers, following wherever they move. With it, the phone can perceive where the user is looking, and can respond to a set of behaviors, let's say a very intentional movement to scroll a Web page up and down, or a long, purposeful blink to click.

If your eyes have reached the bottom of a page, eye-tracking software could automatically scroll you down the following paragraphs of text.

This type of technology -- which had been researched for desktop computing long before it was conceived of for the smaller smartphone screen -- has been demoed for a variety of actions: zooming in or out, pausing a video by looking away from a screen, and playing games.

One company, Umoove, has already posted a demo video on how different eye-tracking navigation could work (below).

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