What is the goal? To be able to walk freely in the virtual world, with no motion sickness. How does it work? It can be broken down into these concepts:
An application such as a game or other virtual reality experience is created in a program such as Unity. To give a good virtual reality experience, the application will update its screen display at 60 fps (frames per second) or faster. As you move your head position, the application updates your location every frame. This gives you the realistic experience that you are in the virtual world.
2: Head Tracking
In order to track your head position, you have to calculate the linear motion in all three axis (X,Y,Z) and the rotational motion in all three axis (X,Y,Z). The headsets that only use your smartphone have to rely on the accuracy of the sensors inside. Unfortunately these sensors are of low quality which leads to motion sickness. The reason is because if they don’t track your head position accurately your brain will think you are moving in one direction while the display your eyes see moves in a different direction. The HSKT™ tracking tag provides excellent head tracking and can be used with any HMD that may or may not already have head tracking technology built in.
3: HSKT™ Position Tracking
Provided you have a high quality image for your eyes and the motion you see updates accurately and quick enough (head tracking), then you can sit in a chair and have a great virtual reality experience, but who wants to sit in a chair the whole time? Most people would like to get up and walk around. Now you can, by incorporating a HSKT™ tracking tag into the headset (direct USB, WIFI or Bluetooth), it will not only give you wonderful head tracking, but it will also track your exact 3D position as you move around the space. Vision systems exist to track your position, but they are very expensive and you can’t have any obstacles in the way of you and the cameras tracking your position. HSKT™ uses a ultra wide band high frequency signals that pass through walls and obstacles.
All HMD devices are supported, but here are some that IndoTraq has been incorporated with.
This is the least expensive way to get into mobile VR. You simply add your phone to the case and insert a HSKT™ tracking tag. The tag communicates to the smartphone with either WIFI, Bluetooth or USB.
The HSKT™ tracking tag will allow you to move around anywhere you want to go and it will track your exact position and feed the information back to the smartphone to update the display.
The Dive is similar in function to the cardboard above, but the virtual reality experience is much better and the headset is more comfortable. This interfaces to the HSKT™ tracking tag in the same manner as above. This system will support almost all phones including both Android and iPhones.
Samsung Gear VR
This has one of the best virtual reality experiences. It is comfortable and the lenses are of high quality.
The high speed update rate of the HSKT™ tracking tag allows each frame to obtain a new position update. This HMD is currently limited to 60 Hz, but other HMDs can also be used to take advantage of the higher update rates that the HSKT™ tracking tag is capable of.
See a Video Demonstration