Concept and steps in Mixed Reality setup

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Sub-systems involved

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Mixed reality (MR) refers to the integration of the physical and virtual world, providing a more immersive experience. To set up mixed reality, a VR headset and an external camera are used to capture the physical environment and the green screen acts as a background to add virtual elements. The following are the principles involved in setting up mixed reality with a VR headset and an external camera and green screen.

  • Calibration: It is essential to calibrate the VR headset, external camera, and green screen to ensure the virtual elements match the physical environment. The VR headset and camera should be aligned so that the virtual objects appear in the correct location and orientation.
  • Lighting: Proper lighting is crucial to get the best results. The green screen should be evenly lit and the external camera should be set to correct exposure. The lighting should not cast shadows on the green screen, which would interfere with the MR experience.
  • Camera Settings: The external camera must be set up to record the green screen background and the physical environment. It should have a wide field of view to capture the full green screen and have a high enough resolution to produce clear images.
  • Green Screen: The green screen should be large enough to capture the entire field of view of the VR headset and camera. It should be made of a non-reflective material and placed in a well-lit area to reduce shadows and reflections.
  • VR Software: MR experiences can be created using various VR software. The software should have the ability to track the VR headset and external camera, superimpose virtual objects onto the physical environment, and composite the virtual and physical elements into a seamless experience.
  • Performance Optimization: The hardware and software must be optimized for performance. The VR headset should have a high refresh rate and low latency, while the software should have the ability to run at a high frame rate.

As to steps to set up mixed reality follow these steps:

  1. Choose the right equipment: To set up mixed reality, you will need a VR headset, an external camera, a green screen, and an external display. Ensure that all the equipment is compatible and meets the necessary requirements for mixed reality.
  2. Calibrate the VR headset and camera: Calibrate the VR headset and camera to ensure that the virtual objects appear in the correct location and orientation. The VR headset should be positioned so that the camera can see both the green screen and the physical environment.
  3. Mount VR tracker: Mount the VR tracker on top of the camera. The tracker uses infrared emitters to emit a pattern of infrared light, which is captured by the camera. It then analyzes the captured image to determine the position and orientation of the VR headset and camera.
  4. Set up the green screen: The green screen should be positioned in a well-lit area and should be large enough to capture the entire field of view of the VR headset and camera.
  5. Configure the camera: The external camera should be set up to record the green screen background and the physical environment. The camera should have a wide field of view and high resolution to produce clear images.
  6. Install VR software: Install the VR software that you plan to use to create the mixed reality experience. The software should have the ability to track the VR headset and external camera, superimpose virtual objects onto the physical environment, and composite the virtual and physical elements into a seamless experience.
  7. Connect the external display: Connect the external display to your computer or device to display the mixed reality experience. Ensure that the display is configured to match the resolution and aspect ratio of the VR headset.
  8. Start the mixed reality experience: Start the mixed reality experience and adjust the settings as needed. The virtual objects should appear on the green screen and be displayed on the external display.
  9. Record or stream the mixed reality experience: To capture or show the mixed reality experience on an external display, you can use screen recording or streaming software.

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