Eye-tracking cameras offer a new way to control your computer.
A camera over the screen is a standard feature for laptops. But only Lenovo's new model has a pair of cameras below its display to track the movements of a user's eyes.
The prototype laptop can be controlled with eye motions, reducing the need to use the mouse and making it faster to navigate through information such as maps or menus.
The laptop can notice when its user has read to near the bottom of a page and can automatically scroll down to reveal more text. The same trick also makes it possible to browse through an e-mail in-box without using the mouse at all. When using a map application, the user can zoom in on an area by looking at it and scrolling the mouse wheel. The computer also dims its screen automatically to save power when it detects that the user's gaze has left the screen.
"We're attempting to make the process of interacting with your computer a more natural experience," says Barbara Barclay, who heads North American operations for Tobii, the Swedish company that supplied the eye-tracking hardware and software for the prototype. So far, only 20 of the new computers have been made; Tobii and Lenovo will each have 10 with which to test out new ideas.
The two cameras below the laptop's screen use infrared light to track a user's pupils. An infrared light source located next to the cameras lights up the user's face and creates a "glint" in the eyes that can be accurately tracked. The position of those points is used to create a 3-D model of the eyes that is used to calculate what part of the screen the user is looking at; the information is updated 40 times per second.
The system can accurately track the direction of the user's gaze to about 0.5 degrees, which translates to about half an inch on the screen of the laptop. A user can shift position, says Barclay, but the head must be kept within a volume of roughly two cubic feet. Because the hardware is mounted and moves with the laptop's LCD screen, a user's efforts to accommodate the display's limited viewing angle by adjusting head and monitor position usually ensure that the eyes remain in proper camera range.
By: www.technologyreview.com
Friday, March 4, 2011
Microsoft Resumes Windows Phone 7 Updates for Samsung Devices
Microsoft on Wednesday resumed the roll-out of its first Windows Phone 7 update to Samsung phones.
The software giant suspended updates to Samsung devices last week after a glitch prompted the update to fail for certain users. Microsoft on Wednesday apologized for the bug and said that its "engineering team has pinpointed and fixed problems that were preventing a small percentage of Windows Phones from installing the February software patch," but offered few other details.
Microsoft started rolling out the platform update last month, but users soon started posting on the Microsoft forums about errors or being unable to install. Microsoft later said that "90 percent of people who received an update notification have installed the new software patch successfully," though it did not reveal how many of its Windows Phone users had already received the update.
"We're continuing to dispatch the update to other Windows Phone models," Microsoft said Wednesday. "As has been the case, the software patch is being sent out on a rolling schedule. You'll see a message on your phone when it's available."
The update "is designed to improve the software update process itself," Microsoft said last week. "So while it might not sound exciting, it's still important because it's paving the way for all future goodie-filled updates to your phone, such as copy and paste or improved Marketplace search."
It is not the larger update Microsoft chief Steve Ballmer promised at CES. That will add two components: cut and paste; and improved app performance when loading and switching apps. Customers can expect to see apps and games that load even faster, he said.
By: www.pcmag.com
The software giant suspended updates to Samsung devices last week after a glitch prompted the update to fail for certain users. Microsoft on Wednesday apologized for the bug and said that its "engineering team has pinpointed and fixed problems that were preventing a small percentage of Windows Phones from installing the February software patch," but offered few other details.
Microsoft started rolling out the platform update last month, but users soon started posting on the Microsoft forums about errors or being unable to install. Microsoft later said that "90 percent of people who received an update notification have installed the new software patch successfully," though it did not reveal how many of its Windows Phone users had already received the update.
"We're continuing to dispatch the update to other Windows Phone models," Microsoft said Wednesday. "As has been the case, the software patch is being sent out on a rolling schedule. You'll see a message on your phone when it's available."
The update "is designed to improve the software update process itself," Microsoft said last week. "So while it might not sound exciting, it's still important because it's paving the way for all future goodie-filled updates to your phone, such as copy and paste or improved Marketplace search."
It is not the larger update Microsoft chief Steve Ballmer promised at CES. That will add two components: cut and paste; and improved app performance when loading and switching apps. Customers can expect to see apps and games that load even faster, he said.
By: www.pcmag.com
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