Virtual Dictionary
Metallic Distortion
Electromagnetic based tracking devices are used in 'fishtank' VR systems such as CAVEs, CUBEs and Hemispheres to monitor the viewer's head position and update the view they see as the user's head moves.
Metallic distortion occurs as noise interference or signal degradation on the trackers' data, if they move into the vicinity of large metal objects.
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PET Resolution Increases by Leaps and Bounds
ET scans suffer quite a bit when they image moving tissue, such as a beating heart. No scan is instantaneous, and as the slices move down, the beating of the heart causes distortion that is hard to remove from the result, as pieces do not line up correctly. A solution to this, that increases the resolution as a side-effect, may have been found.
Fast Adaptive Optics for 3D Medical Imaging
One of the greatest problems with tomography based medical scanners, is what happens when the patient moves (breathes, or pumps blood). The distortion that occurs in each slice has long been correctable, but takes a long time to correct. With near-instant correction now possible, real-time medical scanning is starting to look like a true possibility.
Combating Noise and Distortion When Linking Aircraft to the wider Sensor Net
Commercial aircraft are a problem when it comes to linking them to the wider sensor net - all external electronic communication flows through a single part of the nose of the plane. This must be precision manufactured to be defect-free, or moisture and heat can tear the signal apart. How then, do you guarantee it is defect-free?
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(13/01/2009)
Distorted cell-phone photos and big, clunky telephoto lenses could be things of the past. UW-Madison Electrical and Computer Engineering Associate Professor Zhenqiang (Jack) Ma and colleagues have developed a flexible light-sensitive materi...
(15/11/2009)
The difference between a matt and a glossy painted surface shows that there's more to the appearance of real-world objects than colour alone. But reproducing that variation in printed images has been beyond the capabilities of even the bes...
(09/12/2008)
Hewlett-Packard and Arizona State University have announced a prototype computer display made of plastic, but is paper-like, allowing images to appear on the displays without distortion despite rolling and bending.
It may al...
(02/09/2009)
Interest is growing in the use of metallofullerenes - carbon ?cages? with embedded metallic compounds - as materials for miniature data storage devices. Researchers at Empa have discovered that metallofullerenes are capable of forming order...
(20/02/2010)
NEC Corp. announced today the development and successful demonstration of LSI technology for next-generation high-speed serial communication interfaces. This new technology allows inter-chip communication that is three times faster than mod...
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