Researchers at North Carolina State University have developed a user-friendly, inexpensive controller for manipulating virtual objects in a computer program in three dimensions. The device allows users to manipulate objects more quickly - with less lag time - than existing technologies.
The device, called CAPTIVE, offers six degrees of freedom (6DoF) for users - with applications ranging from video gaming to medical diagnostics to design tools. And CAPTIVE makes use of only three components: a simple cube, the webcam already found on most smartphones and laptops, and custom software.
Researchers at North Carolina State University have developed a user-friendly, inexpensive controller for manipulating virtual objects in a computer program in three dimensions. Called CAPTIVE, the device allows users to manipulate objects more quickly -- with less lag time -- than existing technologies.
Credit: Zeyuan Chen
The cube is plastic, with differently colored balls at each corner. It resembles a Tinkertoy, but is made using a 3-D printer. When users manipulate the cube, the image is captured by the webcam. Video recognition software tracks the movement of the cube in three dimensions by tracking how each of the colored balls moves in relation to the others. Video demonstrating CAPTIVE can be seen here: https:/
"The primary advantage of CAPTIVE is that it is efficient," says Zeyuan Chen, lead author of a paper on the work and a Ph.D. student in NC State's Department of Computer Science. "There are a number of tools on the market that can be used to manipulate 3-D virtual objects, but CAPTIVE allows users to perform these tasks much more quickly."
To test CAPTIVE's efficiency, researchers performed a suite of standard experiments designed to determine how quickly users can complete a series of tasks.
The researchers found, for example, that CAPTIVE allowed users to rotate objects in three dimensions almost twice as fast as what is possible with competing technologies.
"Basically, there's no latency; no detectable lag time between what the user is doing and what they see on screen," Chen says.
CAPTIVE is also inexpensive compared to other 6DoF input devices.
"There are no electronic components in the system that aren't already on your smartphone, tablet or laptop, and 3-D printing the cube is not costly," Chen says. "That really leaves only the cost of our software."
The paper, "Performance Characteristics of a Camera-Based Tangible Input Device for Manipulation of 3D Information," will be presented at the Graphics Interface conference being held in Edmonton, Alberta, May 16-19. The paper was co-authored by Christopher Healey, a professor of computer science at NC State and in the university's Institute for Advanced Analytics; and Robert St. Amant, an associate professor of computer science at NC State. The work was done with support from the National Science Foundation under grant number 1420159.
Matt Shipman | EurekAlert!
Earthquake researchers finalists for supercomputing prize
19.11.2018 | University of Tokyo
Putting food-safety detection in the hands of consumers
15.11.2018 | Massachusetts Institute of Technology
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
19.11.2018 | Materials Sciences
19.11.2018 | Information Technology
19.11.2018 | Life Sciences