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: firstname.lastname@example.org.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
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.