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[EV]3 inventions & know-how — 3D Pointer
3D Pointer is a proprietary product of EligoVision.
It is an interactive device which helps you easily navigate in three-dimensional virtual worlds of your presentations and interact with them.
What is interactive VR device
Today there are lots of devices for working with virtual reality (VR) 3D applications available on the market. Many of them have already been in use for a long time. These are, for example, virtual reality gloves, joysticks, Nintendo Wii or Microsoft Kinect.
Some of these are used only in certain areas of science and business (medicine, architecture, military science, industry), while some are available to everyone.
Every interactive device must be setup for each individual VR application which may be an advantage or a disadvantage. Even VR helmets, which are already familiar to the players, will not work with the game, which hasn’t been previously adapted to the new device.
Interactive VR systems are not so simple as computer mice. They provide us with much more capabilities than any 2D device. They allow us to interact with stereoscopic virtual 3D worlds and help control the system at a deeper level. They help us interact with the virtual worlds just as we interact with the real world.
3D Pointer by EligoVision is a truly unique device to interact with virtual worlds.
What is 3D Pointer
3D Pointer allows controlling 2D and 3D virtual reality applications. It operates at a distance from the display and has the function of in-built tracking.
Watch this short video to see what you can do with 3D Pointer!
All modern VR devices provide far more freedom than a conventional computer mouse. Unlike so-called relative displacement devices (mice, joysticks, trackballs, stylus) VR devices should have enough spatial degrees of freedom (DOF) to allow working with three-dimensional applications without creating additional graphical interfaces. A man, for example, needs six degrees of freedom to feel comfortable in the real world.
3D Pointer has five spatial degrees of freedom, and it allows to navigate and control 3D objects in the virtual world, as well as to position the cursor in a 3D space without using additional graphical interfaces.
Today, 3D Pointer is produced only by EligoVision — it is our know-how.
The functionality of 3D Pointer
3D Pointer is a direct interaction tool.
Its position in a space of a 3D computer application is interpreted against its position and orientation in a real space. The main type of tracking used by this device is the optical one. Our special optical tracking system that uses only one camera (a module for recording the optical signal) follows movements, displacement and direction of the tool with extreme precision.
simulate the usual computer control devices — 3D Pointer can easily work as a computer mouse or a joystick.
3D Pointer gives us unlimited capabilities to control and manipulate 3D objects. Those, who have already used this new tool, call it a «magic wand». And in some way they're right!
Components of 3D Pointer
3D Pointer device;
optical signal registration module;
A specially designed housing for the optical signal registration module prevents the module from damage. It is attached to the mobile stand rod and follows the uniform style of the entire EligoVision device range.
Thanks to the design of the housing, it is easy to calibrate and setup the optical signal registration module before the presentation.
The simple design and safety features turn the optical signal registration module into a reliable and vandal-resistant device.
The complete 3D Pointer pack includes:
two 3D Pointer devices;
optical signal registration module;
cables for connection an optical signal registration module;
power supply unit;
a set of spare batteries for the 3D Pointers;
spare diods for the optical 3D Pointer.
Optical tracking systems by leading international vendors presently use from 2 to 4 cameras in each tracking system.
The tracked point or object pertains to three-dimensional space. One projection is not enough to define its coordinates and angles. The matrix of a camera (optical signal recording module) is flat. Thus, two cameras are required for 3D spaces — one flat projection per each camera. That is why cameras are configured for paired operation in standard optical tracking systems.
When one knows the spatial position of the cameras one can reproduce the position of the optical signal source using the epipolar geometry methods. If cameras are calibrated in the same coordinates as the system (in meters, centimeters, etc.), then one can exactly determine the source of a signal received by the camera. A special calibration procedure is used to read the signal. A coordinate scale of one camera should match that of another camera.
EligoVision specialists developed an optical tracking technology based on the use of one camera only. It substantially reduces the cost of installing and using systems (by more than 3 times). It helps to track the position of optical markers on the 3D Pointer.
Additionally, it provides the following benefits for the VR systems:
simplifies the process of system calibration;
uses a standard FireWire connector (IEEE 1394);
supports mono and stereo modes;
works in standard lighting conditions;
the system can be both fixed and mobile;
supports a multi-user mode/
Want to learn more?
Want to try this new device? Learn how 3D Pointer can turn your 3D presentation into an interactive one.