In fourth grade, my best friend and I developed our own sign language so we could communicate across the room and no one would know what we were saying. Unfortunately, our teacher didn't appreciate our "silent" technique. We may have gotten into a lot less trouble if we knew about the reversible data hiding technique developed by Mehmet U. Celik and A. Murat Tekalp of the University of Rochester and Gaurav Sharma and Eli Saber of Xerox. These scientists invented a method for hiding and extracting information within an ordinary digital image. Commonly-used techniques for embedding messages such as digital watermarking irreversibly change the image, resulting in distortions or information loss. "With our new data embedding algorithm, authorized recipients not only can extract the embedded message but also can recover the original image intact," says Sharma. "The technique offers a significantly higher capacity for embedding data and a lower-distortion than any of the alternatives." The technique will be widely applicable to situations requiring authentication of images such as in forensics. It can also be used to encode information about the image itself, such as who took the picture, when, or with what camera. For more information, contact: Ahmet Tekalp at (585) 275-3774 or e-mail: email@example.com.
The Beam Store from Suitable Technologies is managed by remote workers from places as diverse as New York and Sydney, Australia. Employees attend to store visitors through Beam Smart Presence Systems (SPSs) from the company. The systems combine mobility and video conferencing and allow people to communicate directly from a remote location via a screen as well as move around as if they are actually in the room.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.