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May 10 2015

4870 ae5a



Melting aluminum with an electromagnet.

I’m laughing it starts like a magical girl transformation and then it just goes splort

Reposted fromangelickandy angelickandy viablindtext blindtext
Reposted fromNaitlisz Naitlisz

Teures Spielzeug oder lohnende Investition?

Die neue Tesla-Schwarmspeicherbatterie könnte Strompreise senken - und Anschlusspreise erhöhen
Reposted fromzeitung zeitung

May 07 2015

Spinnenseide ist ein flexibles, leichtes, aber reißfestes ...

Spinnenseide ist ein flexibles, leichtes, aber reißfestes Material. Kohlenstoff-Nanoröhrchen sind ein noch leichteres und reißfesteres Material, ebenfalls flexibel.

Was liegt da nahe? Klar! Man kombiniert das. Und dann passiert das hier:

Spiders sprayed with water containing carbon nanotubes and graphene flakes have produced the toughest fibers ever measured, say materials scientists.
Reposted fromfefe fefe viabesen besen

May 04 2015

Reposted fromblindtext blindtext

2035 könnte das Internet den gesamten britischen Strom fressen

Britischer Wissenschaftler warnt, dass das Internet, wenn es weiter exponentiell wächst, bald an die Kapazitätsgrenzen stoßen wird
Reposted fromzeitung zeitung

May 02 2015

A whiteboard of the future

The black side of the microparticles contains magnetic nanoparticles that make it possible to write on the screen. A magnet pulled across the surface of the white display attracts the black side and the balls flip to face the magnet. (credit: Yusuke Komazaki/University of Tokyo)

Researchers from the University of Tokyo have developed an inexpensive handwriting-enabled e-paper suited to large displays like whiteboards.

The display is made from black-and-white microparticles about 0.1 millimeter in diameter. One hemisphere of each particle is black and carries a negative charge, while the other is white and carries a positive charge. The particles are sandwiched between two electrodes. By switching the direction of the voltage across the electrodes the background display can be switched between black and white.

Handwriting with a magnet is demonstrated on a prototype of the new e-paper (credit: Yusuke Komazaki/University of Tokyo)

Such “twisting ball” displays are not new, but the researchers have integrated a magnetic field control component with the original electric control. The black side of the microparticles also contains magnetic nanoparticles that make it possible to write on the screen.

A magnet pulled across the surface of the white display attracts the black side and the balls flip to face the magnet. In this way images and lines can be drawn on the display. A magnet with about the strength of a refrigerator magnet will work for this task.

Applying a voltage will immediately erase the drawings. In the absence of a voltage or magnetic field, the image is maintained without using any energy.

“Toughness, cost, size and color are the advantages of our e-paper display,” said Yusuke Komazaki, a researcher in the Graduate School of Frontier Sciences at the University of Tokyo and lead author of a paper published in the Journal of Applied Physics.

The display is made from materials like acrylic polymer, silicone elastomer, and silicone oil that are relatively inexpensive and hold up well under UV light. Because of the e-paper’s simple structure, large displays can be easily fabricated, Komazaki said. The researchers could easily change the color combinations by substituting different microparticle pigments, he suggested.

“Conventional electronic whiteboards are equipped with large LCDs or projectors and are very expensive, less visible in bright light conditions, heavy, and energy consuming,” Komazaki said. “If we fabricate super-large displays, it might even be possible to replace traditional blackboards in classrooms.”

The team is working to improve the contrast of the display, which they believe can be achieved by increasing the amount of black and white pigment in the microparticles. The researchers believe their work could one day contribute to a world less dependent on traditional paper.

Abstract of Electrically and Magnetically Dual-driven Janus Particles for Handwriting-enabled E-paper

In this work, we describe the synthesis of novel electrically and magnetically dual-driven Janus particles for a handwriting enabled twisting ball display via the microfluidic technique. One hemisphere of the Janus particles contains a charge control agent, which allows the display color to be controlled by applying a voltage and superparamagnetic nanoparticles, which allows handwriting by applying a magnetic field to the display. We fabricated a twisting ball display utilizing these Janus particles and tested the electric color control and handwriting using a magnet. As a result, the display was capable of permitting handwriting with a small magnet in addition to conventional color control using an applied voltage (80 V). Handwriting performance was improved by increasing the concentration of superparamagnetic nanoparticles and was determined to be possible even when 80 V was applied across the electrodes for 4 wt% superparamagnetic nanoparticles in one hemisphere. This improvement was impossible when the concentration was reduced to 2 wt% superparamagnetic nanoparticles. The technology presented in our work can be applied to low-cost, lightweight, highly visible and energy saving electronic message boards and large whiteboards because the large-size display can be fabricated easily due to its simple structure.

Reposted fromsigaloninspired sigaloninspired

Printing silicon on paper with lasers

Silicon printed on paper (credit: M. Trifunovic et al./Applied Physics Letters)

Researchers at Delft University of Technology in the Netherlands have pioneered a method that allows silicon, in the polycrystalline form used in circuitry, to be produced directly on a substrate from liquid silicon ink with a single laser pulse.

The capacity for printing silicon ink onto substrates has existed for some time, but necessitated a 350° C thermal annealing step — far too hot for many of the flexible surfaces that made production appealing in the first place. The researcher’s new method completely bypasses this step, transforming the liquid silicon directly into polysilicon. They discuss their research in Applied Physics Letters.

“We coated liquid polysilane directly on paper by doctor-blading, or skimming it by a blade directly in oxygen free environment,” said Ryoichi Ishihara, the professor who led the research team at Delft University of Technology, with collaborators at the Japan Advanced Institute of Science and Technology in Ishikawa, Japan.” Then we annealed the layer with an excimer-laser [a conventional tool used for manufacturing smartphone displays]. And it worked,” Ishihara said.

The laser blast only lasted a few tens of nanoseconds, leaving the paper completely intact. In testing its conductive performance, Ishihara and his colleagues found that thin-film transistors using the laser-printed layer exhibited mobilities as high as those of conventional poly-silicon conductors.

The most immediate application of this printing capacity is in wearable electronics, as it allows for the production of fast, low-power and flexible transistors at a remarkably low cost. Ishihara believes the future of the project, which involves improving the production process of the thin-film transistors to include additional non-silicon layers, will have applications in biomedical sensors, solar cells, and stretchable electronics.

Abstract of Solution-processed polycrystalline silicon on paper

Printing electronics has led to application areas formerly which were impossible with conventional electronic processes. Solutions are used as inks on top of large areas at room temperatures, allowing the production of fully flexible circuitry. Commonly, research in these inks have focused on organic and metal-oxide ink materials due to their printability, while these materials lack in the electronic performance when compared to silicon electronics. Silicon electronics, on the other hand, only recently has found their way in solution processes. Printing of cyclopentasilane as the silicon ink has been conducted and devices with far superior electric performance have been made  when compared to other ink materials. A thermal annealing step of this material, however, was necessary, which prevented its usage on inexpensive substrates with a limited thermal budget. In this  work, we introduce a method that allows polycrystalline silicon (poly-Si) production directly from  the same liquid silicon ink using excimer laser irradiation. In this way, poly-Si could be formed  directly on top of paper even with a single laser pulse. Using this method, poly-Si transistors were  created at a maximum temperature of only 150 °C. This method allows silicon device formation on  inexpensive, temperature sensitive substrates such as polyethylene terephthalate, polyethylene  naphthalate or paper, which leads to applications that require low-cost but high-speed electronics.

Reposted fromsigaloninspired sigaloninspired

May 01 2015

Making robots more human by detecting human emotions

Stretchable transparent ultrasensitive strain sensors attached to the forehead, near the mouth, under the eye, and on the neck to sense skin strains induced by muscle movements during expression of emotions and daily activities (credit: Eun Roh et al./ACS Nano)

If robots could detect human emotions, it might make them more “human.” That’s the premise of new research by Korean scientists, who have developed simple, low-cost, ultra-sensitive wearable strain sensors that can detect facial expressions.

This kind if detection is normally done with vision sensors connected to a computer, with facial-analysis algorithms, but such systems are expensive and have low mobility and high complexity, the researchers note in a paper published in ACS Nano.

Schematic illustration of the cross-section of the strain sensor consisting of the three-layer stacked nanohybrid structure (credit: Eun Roh et al./ACS Nano)

Instead, the researchers created a stretchable, transparent sensor by layering a carbon-nanotube film on two different kinds of electrically conductive elastomers. They found that changes in resistance values could indicate whether subjects were laughing or crying and where they were looking, based on characteristic patterns of resistance change.

Laughing has a characteristic pattern that can be inferred from signals from sensors that measure changes in resistance on the forehead and near the mouth (credit: Eun Roh et al./ACS Nano)

The sensors could also have applications in monitoring heartbeats, breathing, dysphagia (difficulty swallowing),and other health-related cues, the researchers suggest.

The work was funded by the National Research Foundation of Korea.

Abstract of Stretchable, Transparent, Ultrasensitive, and Patchable Strain Sensor for Human–Machine Interfaces Comprising a Nanohybrid of Carbon Nanotubes and Conductive Elastomers

Interactivity between humans and smart systems, including wearable, body-attachable, or implantable platforms, can be enhanced by realization of multifunctional human–machine interfaces, where a variety of sensors collect information about the surrounding environment, intentions, or physiological conditions of the human to which they are attached. Here, we describe a stretchable, transparent, ultrasensitive, and patchable strain sensor that is made of a novel sandwich-like stacked piezoresisitive nanohybrid film of single-wall carbon nanotubes (SWCNTs) and a conductive elastomeric composite of polyurethane (PU)-poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS). This sensor, which can detect small strains on human skin, was created using environmentally benign water-based solution processing. We attributed the tunability of strain sensitivity (i.e., gauge factor), stability, and optical transparency to enhanced formation of percolating networks between conductive SWCNTs and PEDOT phases at interfaces in the stacked PU-PEDOT:PSS/SWCNT/PU-PEDOT:PSS structure. The mechanical stability, high stretchability of up to 100%, optical transparency of 62%, and gauge factor of 62 suggested that when attached to the skin of the face, this sensor would be able to detect small strains induced by emotional expressions such as laughing and crying, as well as eye movement, and we confirmed this experimentally.

Reposted fromsigaloninspired sigaloninspired

IBM demonstrates superconducting quantum computer

Layout of IBM’s four superconducting quantum bit device. Using a square lattice, IBM is able to detect both types of quantum errors for the first time. The new quantum-bit circuit design allows for independent and simultaneous detection of X and Z errors on two-code qubits, shaded purple and labelled Q1 and Q3.  (credit: A.D. Córcoles et al./Nature Communications)

IBM scientists Wednesday April 29 unveiled two critical advances towards creating a practical quantum computer by detecting and measuring both kinds of quantum errors simultaneously. They also demonstrated a new, square quantum bit circuit design that they suggest is the only physical architecture that could successfully scale to larger dimensions.

Quantum computers promise to open up new capabilities in the fields of optimization and simulation that are not possible using today’s computers. If a quantum computer could be built with just 50 quantum bits (qubits), no combination of today’s TOP500 supercomputers could successfully outperform it, the scientists say.

The IBM breakthroughs, described in an open-access paper in the April 29 issue of the journal Nature Communications, show for the first time the ability to detect and measure the two types of quantum errors (bit-flip and phase-flip) that will occur in any real quantum computer*.

Until now, it was only possible to address one type of quantum error or the other, but never both at the same time. This is a necessary step toward quantum error correction, which is a critical requirement for building a practical and reliable large-scale quantum computer.

IBM’s quantum bit circuit is based on a square lattice of four superconducting qubits on a chip roughly one-quarter-inch square. It enables both types of quantum errors to be detected at the same time. Using a square-shaped design instead of the conventional linear array allow for detecting both kinds of quantum errors simultaneously and may offer the best potential to scale by adding more qubits to arrive at a working quantum system.

IBM Research scientist Jerry Chow conducts a quantum computing experiment at IBM’s Thomas J. Watson Research Center in Yorktown Heights, NY (credit: Jon Simon/Feature Photo Service for IBM)

Dealing with decoherence

One of the great challenges for scientists seeking to harness the power of quantum computing is controlling or removing quantum decoherence — the creation of errors in calculations caused by interference from factors such as heat, electromagnetic radiation, and material defects. The errors are especially acute in quantum machines, since quantum information is so fragile.

Previous quantum-computing research, such as work in the John Martinis Lab at UC Santa Barbara (see “A quantum device that detects and corrects its own errors“), has been able to detect bit-flip or phase-flip quantum errors, but never the two together.

“This provided incomplete information on the quantum state of a system, making the designs inadequate for a quantum computer,” said Jay Gambetta, a manager in the IBM Quantum Computing Group. “Our four qubit results take us past this hurdle by detecting both types of quantum errors and can be scalable to larger systems, as the qubits are arranged in a square lattice as opposed to a linear array.”

Preserving information longer

Quantum information is very fragile because all existing qubit technologies lose their information when interacting with matter and electromagnetic radiation. Theorists have found ways to preserve the information much longer by spreading information across many physical qubits.

“Surface code” is the technical name for a specific error correction scheme which spreads quantum information across many qubits. It allows for only nearest neighbor interactions to encode one logical qubit, making it sufficiently stable to perform error-free operations.

With exponentially more power than today’s fastest supercomputers, quantum computers could herald a new era of innovation across industries (credit: IBM)

The IBM Research team used a variety of techniques to measure the states of two independent syndrome (measurement) qubits. Each reveals one aspect of the quantum information stored on two other qubits (called code, or data qubits). Specifically, one syndrome qubit revealed whether a bit-flip error occurred to either of the code qubits, while the other syndrome qubit revealed whether a phase-flip error occurred.

Determining the joint quantum information in the code qubits is an essential step for quantum error correction because directly measuring the code qubits destroys the information contained within them.

Because these qubits can be designed and manufactured using standard silicon fabrication techniques, IBM anticipates that once a handful of superconducting qubits can be manufactured reliably and repeatedly, and controlled with low error rates, there will be no fundamental obstacle to demonstrating error correction in larger lattices of qubits.

Quantum computing could allow scientists to design new materials and drug compounds without expensive trial and error experiments in the lab, potentially speeding up the rate and pace of innovation across many industries. Quantum computers could also quickly sort and curate ever larger databases as well as massive stores of diverse, unstructured data. This could transform how people make decisions and how researchers across industries make critical discoveries.

The work at IBM was funded in part by the IARPA (Intelligence Advanced Research Projects Activity) multi-qubit-coherent-operations program.

* Two types of errors can occur on such a superposition state. One is called a bit-flip error, which simply flips a 0 to a 1 and vice versa. This is similar to classical bit-flip errors and previous work has showed how to detect these errors on qubits. However, this is not sufficient for quantum error correction because phase-flip errors can also be present, which flip the sign of the phase relationship between 0 and 1 in a superposition state. Both types of errors must be detected in order for quantum error correction to function properly.

Abstract of Demonstration of a quantum error detection code using a square lattice of four superconducting qubits

The ability to detect and deal with errors when manipulating quantum systems is a fundamental requirement for fault-tolerant quantum computing. Unlike classical bits that are subject to only digital bit-flip errors, quantum bits are susceptible to a much larger spectrum of errors, for which any complete quantum error-correcting code must account. Whilst classical bit-flip detection can be realized via a linear array of qubits, a general fault-tolerant quantum error-correcting code requires extending into a higher-dimensional lattice. Here we present a quantum error detection protocol on a two-by-two planar lattice of superconducting qubits. The protocol detects an arbitrary quantum error on an encoded two-qubit entangled state via quantum non-demolition parity measurements on another pair of error syndrome qubits. This result represents a building block towards larger lattices amenable to fault-tolerant quantum error correction architectures such as the surface code.

Reposted fromsigaloninspired sigaloninspired

Calling Android users: Help Mozilla Map the World!

Many iPhone users may have wondered why Apple prompts them with a message saying “Location accuracy is improved when Wi-Fi is turned on” each time they choose to turn Wi-Fi off.  Why does a phone that has GPS (Global Positioning Satellite) capability need to use Wi-Fi to determine it’s location? The reason is fairly simple.  There are of course thousands of radio frequencies traveling through the walls of buildings all around us.  What makes Wi-Fi frequency (or even bluetooth) particularly useful for location mapping is that the frequency travels a relatively short distance before it decays, due to how low energy the Wi-Fi wavelengths are.  A combination of three or more Wi-Fi signals can be used in a very small area by a phone to triangulate locations on a map in the same manner that earthquake shockwave strengths can be used to triangulate epicenters.  Wi-Fi hubs don't need to transmit their locations to be useful.  Most are oblivious of their location.  It is the phone's interpretations of their signal strength and inferred location that creates the value to the phone's internal mapping capabilities.  No data that goes over the Wi-Fi frequency is  relevant to using radio for triangulation.  It is merely the signal strength/weakness that makes it useful for triangulation.  (Most Wi-Fi hubs are password protected and the data sent over them is encrypted.)  Being able to let phone users determine their own location is of keen interest to developers who can’t make location-based-services work without fairly precise location determinations.  The developers don't want to track the users per se.  They want the users to be able to self-determine location when they request a service at a precise location in space.  (Say requesting a Lyft ride or checking in at a local eatery.)  There are a broad range of businesses that try to help phones accurately orient themselves on maps.  The data that each application developer uses may be different across a range of phones.  Android, Windows and iPhones all have different data sources for this, which can make it frustrating to have consistency of app experience for many users, even when they’re all using the same basic application.At Mozilla, we think the best way to solve this problem is to create an open source solution.  We are app developers ourselves and we want our users to have consistent quality of experience, along with all the websites that our users access using our browsers and phones.  If we make location data accessible to developers, we should be able to help Internet users navigate their world more consistently.  By doing it in an open source way, dozens of phone vendors and app developers can utilize this open data source without cumbersome and expensive contracts that are sometimes imposed by location service vendors.  And as Mozilla we do this in a way that empowers users to make personal choice as to whether they wish to participate in data contribution or not.How can I help?  There are two ways Firefox users can get involved.  (Several ways that developers can help.)  We have two applications for Android that have the capability to “stumble” Wi-Fi locations.The first app is called “Mozilla Stumbler” and is available for free download in the Google Play store. (https://play.google.com/store/apps/details?id=org.mozilla.mozstumbler)  By opening MozStumbler and letting it collect radio frequencies around you, you are able to help the location database register those frequencies so that future users can determine their location.  None of the data your Android phone contributes can be specifically tied to you.  It’s collecting the ambient radio signals just for the purpose of determining map accuracy.  To make it fun to use MozStumbler, we have also created a leaderboard for users to keep track of their contributions to the database.  Second app is our Firefox mobile browser that runs on the Android operating system.  (If it becomes possible to stumble on other operating systems, I’ll post an update to this blog.)  You need to take a couple of steps to enable background stumbling on your Firefox browser.  Specifically, you have to opt-in to share location data to Mozilla.  To do this, first download Firefox on your Android device.  On the first run you should get a prompt on what data you want to share with Mozilla.  If you bypassed that step, or installed Firefox a long time ago, here’s how to find the setting:1) Click on the three dots at the right side of the Firefox browser chrome then select "Settings" (Above image)2) Select Mozilla (Right image)Check the box that says “Help Mozilla map the world! Share approximate Wi-Fi and cellular location of your device to improve our geolocation services.” (Below image)The stumbler code operates in the background, and does not transmit data over carrier signal, so there is no significant impact to battery life, and there is no impact on the data charges from your cellular carrier. If you ever want to change your settings, you can return to the settings of Firefox, or you can view your Android device's main settings menu on this path: Settings>Personal>Location which is the same place where you can see all the applications you've previously granted access to look up your physical location.The benefit of the data contributed is manifold:1) Firefox users on PCs (which do not have GPS sensors) will be able to determine their positions based on the frequency of the WiFi hotspots they use rather than having to continually require users to type in specific location requests.  2) Apps on Firefox Operating System and websites that load in Firefox that use location services will perform more accurately and rapidly over time.3) Other developers who want to build mobile applications and browsers will be able to have affordable access to location service tools.  So your contribution will foster the open source developer community.Thank you for helping improve Mozilla Location Services.If you'd like to read more about Mozilla Location Services please visit:https://location.services.mozilla.com/To see how well our map currently covers your region, visit:https://location.services.mozilla.com/map#2/15.0/10.0If you are a developer, you can also integrate our open source code directly into your own app to enable your users to stumble for fun as well.  Code is available here: https://github.com/mozilla/DemoStumbler
Reposted from02mysoup-aa 02mysoup-aa

Artificial photosynthesis could help make fuels, plastics, and medicine

Schematics of a general artificial photosynthetic approach. The proposed approach for solar-powered CO2 fixation includes four general components: (1) harvesting solar energy, (2) generating reducing equivalents, (3) reducing CO2 to biosynthetic intermediates, and (4) producing value-added chemicals. An integration of materials science and biology, such an approach combines the advantages of solid-state devices with living organisms. (credit: Chong Liu et al./Nano Letters)

A team of scientists has invented a new artificial photosynthetic system that could one day reduce industry’s dependence on fossil fuel-derived energy by powering it with solar energy and bacteria.

In the ACS journal Nano Letters, they describe a novel system that converts light and carbon dioxide into building blocks for plastics, pharmaceuticals and fuels — all without electricity.

Plants use photosynthesis to convert sunlight, water and carbon dioxide to make their own fuel in the form of carbohydrates. Globally, this natural process harvests 130 Terawatts of solar energy to generate up to 115 billion metric tons of biomass annually. If scientists could figure out how to harness just a fraction of that amount to make fuels and power industrial processes, they could dramatically cut our reliance on fossil fuels.

However, such an approach has not been fully realized owing to a host of unmet basic scientific challenges, say the scientists at Howard Hughes Medical Institute, Lawrence Berkeley National Laboratory, Kavli Energy NanoSciences Institute, and University of California, Berkeley.

The groups developed a stand-alone solar-energy conversion process that combines the strengths of semiconductor nanodevices and bacterium-based biocatalysts. A nanowire array captures light, and with the help of bacteria, converts carbon dioxide into acetate. The bacteria directly interact with light-absorbing materials, which the researchers say is the first example of “microbial photoelectrosynthesis.”

Another kind of bacteria then transforms the acetate into chemical precursors that can be used to make a wide range of everyday products from antibiotics to paints, replacing fossil fuels and electrical power.

The authors acknowledge funding from the U.S. Department of Energy, the Lawrence Berkeley National LaboratoryHoward Hughes Medical Institute, the National Science Foundation and the National Institutes of Health.

Abstract of Nanowire–Bacteria Hybrids for Unassisted Solar Carbon Dioxide Fixation to Value-Added Chemicals

Direct solar-powered production of value-added chemicals from CO2 and H2O, a process that mimics natural photosynthesis, is of fundamental and practical interest. In natural photosynthesis, CO2 is first reduced to common biochemical building blocks using solar energy, which are subsequently used for the synthesis of the complex mixture of molecular products that form biomass. Here we report an artificial photosynthetic scheme that functions via a similar two-step process by developing a biocompatible light-capturing nanowire array that enables a direct interface with microbial systems. As a proof of principle, we demonstrate that a hybrid semiconductor nanowire–bacteria system can reduce CO2 at neutral pH to a wide array of chemical targets, such as fuels, polymers, and complex pharmaceutical precursors, using only solar energy input. The high-surface-area silicon nanowire array harvests light energy to provide reducing equivalents to the anaerobic bacterium, Sporomusa ovata, for the photoelectrochemical production of acetic acid under aerobic conditions (21% O2) with low overpotential (η < 200 mV), high Faradaic efficiency (up to 90%), and long-term stability (up to 200 h). The resulting acetate (∼6 g/L) can be activated to acetyl coenzyme A (acetyl-CoA) by genetically engineered Escherichia coli and used as a building block for a variety of value-added chemicals, such as n-butanol, polyhydroxybutyrate (PHB) polymer, and three different isoprenoid natural products. As such, interfacing biocompatible solid-state nanodevices with living systems provides a starting point for developing a programmable system of chemical synthesis entirely powered by sunlight.

Reposted fromsigaloninspired sigaloninspired

April 27 2015

OpenPandora - Free & Open Source embedded computer with lots of software at metalab.at
Successor is called DragonBox Pyria and will be released soonish.
Reposted frommetalab metalab viasydnor sydnor

The Amazing Capabilities of Prosthetic Limbs

var imagebase='file://D:/Program Files (x86)/FeedReader/'; The Amazing Capabilities of Prosthetic Limbs (7 gifs) 17:23 31.07.2014, Maxx, amazing, World Of Technology

April 23 2015

Reposted fromscience science viaPhlogiston Phlogiston
Reposted fromabstractLoops abstractLoops viaPhlogiston Phlogiston
0659 786b 500



Computer vision 3D construction project from the uofwa [University of Washington] can create 3D scans of moving subjects with current commercial depth sensor technology. To understand why this is significant, most approaches currently require the subject to be completely still to be captured accurately and without errors:

With the availability of massively-parallel commodity computing hardware, we demonstrate new algorithms that achieve high quality incremental dense reconstruction within online visual SLAM. The result is a live dense reconstruction (LDR) of scenes that makes possible numerous applications that can utilise online surface modelling, for instance: planning robot interactions with unknown objects, augmented reality with characters that interact with the scene, or providing enhanced data for object recognition.

More Here

Reposted frombwana bwana

April 20 2015

Reposted fromabstractLoops abstractLoops viae-gruppe e-gruppe
Reposted frommax-power max-power viabbsmb5 bbsmb5
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