The emergence of holographic video

Experimental networked display refreshes holograms every 2 seconds

2010-11-04

(Press-News.org) Researchers at the University of Arizona (UA), Tucson, have developed a holographic system that can transmit a series of 3D images in near-real-time, a precursor to holographic videoconferencing.

The system incorporates a novel, photorefractive polymer--one that can rapidly refresh holographic images and is scalable for production--coupled to a unique system for recording and transmitting 3D images of individuals and objects via Ethernet.

Lead author Pierre-Alexandre Blanche and his colleagues from the university and Nitto Denko Technical Corp. of Oceanside, Calif., describe the breakthrough in the cover story of the Nov. 4, 2010, issue of Nature.

"This advance brings us a step closer to the ultimate goal of realistic holographic telepresence with high-resolution, full-color, human-size, 3D images that can be sent at video refresh rates from one part of the world to the other," says co-author and project lead Nasser Peyghambarian of UA and the Director of NSF's multi-institution Engineering Research Center for Integrated Access Networks (CIAN).

The researchers had previously demonstrated a refreshable polymer display system, but it could refresh images only once every four minutes. The new system can refresh images every two seconds; while not yet ideal for a display, the rate is more than one hundred times faster.

Additionally, using a single-laser system for writing the images onto the photorefractive polymer, the researchers can display visuals in color. While the current refresh rate for multi-color display is even slower than for monochromatic images, the development suggests a true 3D, multicolor system may be feasible.

"This breakthrough opens new opportunities for optics as a means to transport images in real time," says Lynn Preston, director of the NSF Engineering Research Centers program that supports CIAN. "Such a system can have an important impact on telepresence, telemedicine, engineering design and manufacturing, and other applications. This is an early and tremendously important outcome from this three-year old center."

INFORMATION:

Watch a webcast with Peyghambarian explaining the technology here.

Following the embargo lift, read more in the UA press release and watch a video.

This material is based upon work supported by the Engineering Research Center Program of the National Science Foundation under NSF Cooperative Support Agreement Award No. EEC-0812072

Media Contacts
Joshua Chamot, NSF (703) 292-7730 jchamot@nsf.gov
Daniel Stolte, University of Arizona, Tucson (520) 626-4402 daniel.stolte@gmail.com

Program Contacts
Lynn Preston, NSF (703) 292-5358 lpreston@nsf.gov

Principal Invesitgators
Nasser Peyghambarian, University of Arizona, Tucson (520) 621-6997 Nasser@optics.arizona.edu

[Attachments] See images for this press release:

ELSE PRESS RELEASES FROM THIS DATE:

Study reveals why brain has limited capacity for repair after stroke, IDs new drug target

2010-11-04

Stroke is the leading cause of adult disability, due to the brain's limited capacity for recovery. Physical rehabilitation is the only current treatment following a stroke, and there are no medications available to help promote neurological recovery. Now, a new UCLA study published in the Nov. 11 issue of the journal Nature offers insights into a major limitation in the brain's ability to recover function after a stroke and identifies a promising medical therapy to help overcome this limitation. Researchers interested in how the brain repairs itself already know ...

UBC researchers shine light on congenital heart disease 'hot spots' using Canadian Light Source

2010-11-04

Using the Canadian Light Source synchrotron and the Stanford Synchrotron Radiation Lightsource, a team of researchers from the University of British Columbia has shed light on the ryanodine receptor, a structure within muscle cells that has been linked to life-threatening congenital heart conditions. The findings were published online today in the journal Nature. "The ryanodine receptor is a complex molecular machine within muscle cells," says Filip Van Petegem, an assistant professor in UBC's Department of Biochemistry and Molecular Biology and lead author of the study. ...

Asthma drug prevents spread of breast cancer: study

2010-11-04

TORONTO, Ont. — November 1, 2010 — A drug commonly used in Japan and Korea to treat asthma has been found to stop the spread of breast cancer cells traditionally resistant to chemotherapy, according to a new study led by St. Michael's pathologist Dr. Gerald Prud'homme. "Tranilast, a drug approved for use in Japan and South Korea, and not in use in Canada or the U.S., has been used for more than two decades to treat asthma and other allergic disorders including allergic rhinitis and atopic dermatitis," Dr. Prud'homme says. "Now, our study is the first to discover it not ...

Simple blood test may diagnose deadly Niemann-Pick type C disease

2010-11-04

VIDEO: Niemann-Pick type C, a fatal genetic disorder that frequently takes years to diagnose, may now be detectable with a simple blood test, according to researchers at Washington University School of... Click here for more information. A fatal genetic disorder that frequently takes years to diagnose may soon be detectable with a simple blood test, researchers at Washington University School of Medicine in St. Louis and the National Institutes of Health (NIH) report this week ...

Study shows volunteering benefits those with functional limitations

2010-11-04

TEMPE, Ariz. – Volunteering is known to provide health benefits to the person doing the volunteering. Now, a new study finds that older adults with functional limitations (trouble conducting daily tasks like cooking meals) in particular appear to reap the benefits from helping others. The new study addresses the question of whether the impact of volunteering on risk of mortality was stronger for older adults with or without functional limitations. "As functional limitations increase, the risk of dying increases, but not among those who volunteered," said Morris Okun, ...

Neutron stars may be too weak to power some gamma-ray bursts

2010-11-04

A gamma-ray burst is an immensely powerful blast of high-energy light thought to be generated by a collapsing star in a distant galaxy, but what this collapse leaves behind has been a matter of debate. A new analysis of four extremely bright bursts observed by NASA's Fermi satellite suggests that the remnant from a long-duration gamma-ray burst is most likely a black hole – not a rapidly spinning, highly magnetized neutron star, or magnetar since such a burst emits more energy than is theoretically possible from a magnetar. "Some of the events we have been finding ...

New research identifies the plight of farmland birds

2010-11-04

Farmland birds that are poorer parents and less "brainy" are faring worse than other farmland bird species, a study at the University of Bristol has found. The new research, published today in Proceedings of the Royal Society B, found that farmland birds are undergoing dramatic decline across the world, but some bird species are suffering more than others. Unexpectedly, the study also found that medium-sized birds, for example, starlings and skylarks in Europe, rather than large birds were found to suffer more in farmland, unlike studies of other animals in other ...

Plants and animals under stress may provide the key to better stock market predictions

2010-11-04

Stock markets react to crisis in a similar way to plants and the human body, according to a major new study that may help to predict future financial down-turns. An extensive analysis of biological and financial data suggests that systems under stress exhibit similar symptoms, whether they be polluted forests, cancer patients or the FTSE 100. There is an uncanny parallel between the way that humans, animals and plants adapt to harsh living conditions and the behaviour under stress of stock market prices and the banking sector, according to a report on the study by a ...

Stone Age humans needed more brain power to make big leap in tool design

2010-11-04

Stone Age humans were only able to develop relatively advanced tools after their brains evolved a greater capacity for complex thought, according to a new study that investigates why it took early humans almost two million years to move from razor-sharp stones to a hand-held stone axe. Researchers used computer modelling and tiny sensors embedded in gloves to assess the complex hand skills that early humans needed in order to make two types of tools during the Lower Palaeolithic period, which began around 2.5 million years ago. The cross-disciplinary team, involving researchers ...

Specific changes in the brain associated with sleep deprivation described in new study

2010-11-04

SEATTLE, Wash.—November 3, 2010—Researchers at the Allen Institute for Brain Science and SRI International have published the most systematic study to date of the effects of sleep deprivation on gene expression in the brain. The findings have implications for improving the understanding and management of the adverse effects of sleep deprivation on brain function. The study, available in Frontiers in Neuroscience, has created an extensive and detailed map of gene activity, known as gene expression, in the mouse brain across five behavioral conditions including sleeping, ...

National consortium project led by TU Delft receives huge grant from NWO to build world's largest research digital twins for energy systems

Glenn Foundation for Medical Research grant programs provide $2.25 million in support for postdoctoral investigators and junior faculty

Pusan National University researchers explore smart nanomaterials that detect and treat traumatic brain injuries simultaneously

Advanced imaging reveals new fungus species in 407-million-year-old plant fossil from Scotland

[Press-News.org] The emergence of holographic video
Experimental networked display refreshes holograms every 2 seconds

The emergence of holographic video

ELSE PRESS RELEASES FROM THIS DATE:

LAST 30 PRESS RELEASES: