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SideBySide projection system enables projected interaction between mobile devices

Date:
October 21, 2011
Source:
Carnegie Mellon University
Summary:
Researchers have devised a system called SideBySide that enables animated images from two separate handheld projectors to interact with each other on the same surface. The system, suitable for games, education and a variety of other applications, is self-contained in special handheld devices. No external cameras or other sensors are required, which enables people to use the projectors to interact with each other anywhere and at anytime.
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Illustration of a system called SideBySide that enables animated images from two separate handheld projectors to interact with each other on the same surface.
Credit: Image courtesy of Carnegie Mellon University

Researchers at Disney Research, Pittsburgh, and Carnegie Mellon University have devised a system called SideBySide that enables animated images from two separate handheld projectors to interact with each other on the same surface.

The system, suitable for games, education and a variety of other applications, is self-contained in special handheld devices. No external cameras or other sensors are required, which enables people to use the projectors to interact with each other anywhere and at anytime. SideBySide also can be used to exchange contact information, or even share data files. The technology can spur a more participatory and intimate style of interaction than is possible with computers or overhead projectors.

"Smartphones have made it possible for us to communicate, play games and retrieve information from the Web wherever we might be, but our interaction with the devices remains a largely solitary, single user experience," said Karl D.D. Willis, a Ph.D. candidate in computational design at Carnegie Mellon and a lab associate at Disney Research. "Now that handheld projectors have become a reality, we finally have a technology that allows us to create a new way for people to interact in the real world."

The handheld projectors are hybrid devices that emit both visible and infrared light and contain a camera for monitoring the projected images, a ranging sensor and an inertial measurement unit.

The infrared channel plays a key role in enabling interaction. It is used to project markers that help the system recognize when the images are moving or overlapping and to communicate information between the devices.

The researchers have developed a number of applications to demonstrate the capabilities of the technology. Games include Boxing, in which matches are performed without a ring; Cannon, in which players knock a stack of bricks off a platform by firing a cannon ball from one screen to another; and Gorilla, in which one player uses a plane and a net to catch the other player's gorilla. They also have developed a 3D viewer, which allows two users to control and explore a 3D model together, and applications for exchanging contact information and transferring files. A question & answer application can be used to teach basic vocabulary to young children.

A video demonstrating SideBySide can be viewed at http://www.disneyresearch.com/research/projects/hci_sidebyside_drp.htm


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The above post is reprinted from materials provided by Carnegie Mellon University. Note: Materials may be edited for content and length.


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Carnegie Mellon University. "SideBySide projection system enables projected interaction between mobile devices." ScienceDaily. ScienceDaily, 21 October 2011. <www.sciencedaily.com/releases/2011/10/111020025031.htm>.
Carnegie Mellon University. (2011, October 21). SideBySide projection system enables projected interaction between mobile devices. ScienceDaily. Retrieved August 2, 2015 from www.sciencedaily.com/releases/2011/10/111020025031.htm
Carnegie Mellon University. "SideBySide projection system enables projected interaction between mobile devices." ScienceDaily. www.sciencedaily.com/releases/2011/10/111020025031.htm (accessed August 2, 2015).

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