Computed·Blg

Via Rob Miles

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Here is a Kinect-like device from ASUS, which proposed a SDK based on openNI (standard libraries that manage natural interactions issued by different kind of devices). This product can be an interesting alternative to the Microsoft Kinect device for research projects, proposing examples in C++, C# and Java.

Specifications

ASUS Xtion

openNI

Via Technologie Review

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Finger mouse: 3Gear uses depth-sensing cameras to track finger movements.
3Gear Systems

Microsoft's Kinect, a 3-D camera and software for gaming, has made a big impact since its launch in 2010. Eight million devices were sold in the product's first two months on the market as people clamored to play video games with their entire bodies in lieu of handheld controllers. But while Kinect is great for full-body gaming, it isn't useful as an interface for personal computing, in part because its algorithms can't quickly and accurately detect hand and finger movements.

Now a San Francisco-based startup called 3Gear has developed a gesture interface that can track fast-moving fingers. Today the company will release an early version of its software to programmers. The setup requires two 3-D cameras positioned above the user to the right and left.

The hope is that developers will create useful applications that will expand the reach of 3Gear's hand-tracking algorithms. Eventually, says Robert Wang, who cofounded the company, 3Gear's technology could be used by engineers to craft 3-D objects, by gamers who want precision play, by surgeons who need to manipulate 3-D data during operations, and by anyone who wants a computer to do her bidding with a wave of the finger.

One problem with gestural interfaces—as well as touch-screen desktop displays—is that they can be uncomfortable to use. They sometimes  lead to an ache dubbed "gorilla arm." As a result, Wang says, 3Gear focused on making its gesture interface practical and comfortable.

"If I want to work at my desk and use gestures, I can't do that all day," he says. "It's not precise, and it's not ergonomic."

The key, Wang says, is to use two 3-D cameras above the hands. They are currently rigged on a metal frame, but eventually could be clipped onto a monitor. A view from above means that hands can rest on a desk or stay on a keyboard. (While the 3Gear software development kit is free during its public beta, which lasts until November 30, developers must purchase their own hardware, including cameras and frame.)

"Other projects have replaced touch screens with sensors that sit on the desk and point up toward the screen, still requiring the user to reach forward, away from the keyboard," says Daniel Wigdor, professor of computer science at the University of Toronto and author of Brave NUI World, a book about touch and gesture interfaces. "This solution tries to address that."

3Gear isn't alone in its desire to tackle the finer points of gesture tracking. Earlier this year, Microsoft released an update that enabled people who develop Kinect for Windows software to track head position, eyebrow location, and the shape of a mouth. Additionally, Israeli startup Omek, Belgian startup SoftKinetic, and a startup from San Francisco called Leap Motion—which claims its small, single-camera system will track movements to a hundredth of a millimeter—are all jockeying for a position in the fledgling gesture-interface market.

Via New Scientist

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(Image: Surrey Satellite Technology)

Small satellites capable of docking in orbit could be used as "space building blocks" to create larger spacecraft, says UK firm Surrey Satellite Technology. Not content with putting a smartphone app in space, the company now plans to launch a satellite equipped with a Kinect depth camera, allowing it to locate and join with other nearby satellites.

SpaceX's Dragon spacecraft is the latest of many large-scale vehicles to dock in space, but joining small and low-cost craft has not been attempted before. Surrey Satellite Technology's Strand-2 mission will launch two 30cm-long satellites on the same rocket, then attempt to dock them by using the Kinect sensor to align together in 3D space.

"Once you can launch low cost nanosatellites that dock together, the possibilities are endless - like space building blocks," says project leader Shaun Kenyon. For example, it might be possible to launch the components for a larger spacecraft one piece at a time, then have them automatically assemble in space.

Researchers have also previously suggested that Kinect could calculate the mass of astronauts in zero gravity on board the International Space Station, as traditional scales do not work in orbit.