A New High-Speed MRI Technique Is Fast Enough To Record Someone Singing

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It’s a remarkable technology capable of looking inside a human being, but magnetic resonance imaging—or MRI—machines are finicky and require a patient to remain absolutely still while it does its thing. But researchers at the University of Illinois have found a way to capture up to 100 frames per second on an MRI machine allowing them to record patients in motion.

The need for a faster MRI technique arose when a faculty member at the University of Illinois’ Beckman Institute for Advanced Science and Technology wanted to study how the muscles of the larynx worked in elderly patients while singing, in an attempt to help give them more powerful and pronounced voices. The problem with using MRI machines was that they could only capture images at around ten frames per second which was far too slow to study what was going on with the 100 or so muscles required to sing.

So Zhi-Pei Liang, an electrical and computer engineering professor at the institute, worked with his team to develop a new methodology to extract more frames from an MRI machine—which is a far cheaper solution than trying to rebuild and redesign one of the incredibly expensive devices from the ground up. Here’s how the new technique they came up with is described in an issue of Magnetic Resonance in Medicine:

An imaging method is developed to enable high-speed dynamic speech imaging exploiting low-rank and sparsity of the dynamic images of articulatory motion during speech. The proposed method includes: (a) a novel data acquisition strategy that collects spiral navigators with high temporal frame rate and (b) an image reconstruction method that derives temporal subspaces from navigators and reconstructs high-resolution images from sparsely sampled data with joint low-rank and sparsity constraints.

To read the full story and for more information please follow this link to Gizmodo.

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IKEA releases its line of wireless charging furniture

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The IKEA Wireless Charging furniture collection, includes bedside tables, floor-and table lamps, desks and simple charging pads. Credit: IKEA

IKEA has launched its Wireless Charging collection of furniture, which has built-in Qi-enabled wireless chargers for compatible mobile phones.

In addition to offering bedside tables, floor- and table lamps, desks and simple charging pads, IKEA is also selling a DIY kit that lets users embed wireless chargers into furniture of their choice.

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The furniture, and other items in IKEA’s wireless charging collection, ranges in price from $9.99 to $119.

The Wireless Charging collection will be rolled out globally, with U.S. stores seeing availability beginning in late spring, IKEA said today in a statement.

“With smartphones becoming such a natural part of our lives, we wanted the charging part to become a natural part of our homes,” Holly Harraway, IKEA’s lighting sales leader, said.

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The furniture uses the most popular wireless charging specification, Qi, which is supported by brands such as Samsung and Energizer and has gotten an extension to its specification allowing it to charge devices at short distances

Users can check whether their mobile phone is compatible with the Qi standard at the Wireless Power Consortium’s this website.

The WPC with its Qi specification is up against two other industry organizations with their own wireless charging protocols: the Power Matters Alliance (PMA) and the Alliance for Wireless Power (A4WP).

To see more information and more photos follow this link to Computerworld for the full story.