difference between mixed reality and extended reality


Mixed Reality (MR) and Extended Reality (XR) are terms that are often used interchangeably, but they have subtle differences. Let's delve into the technical details to understand these terms more precisely.

Extended Reality (XR):

Extended Reality is an umbrella term that encompasses the entire spectrum of virtual and augmented experiences. It includes Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR). XR is essentially an overarching term that refers to any environment where the physical and digital worlds are integrated to create a unified experience.

Mixed Reality (MR):

Mixed Reality is a specific subset of Extended Reality that blends elements of both the physical and digital worlds to create an immersive experience. It combines aspects of both Augmented Reality and Virtual Reality.

Technical Components of Mixed Reality:

  1. Spatial Mapping:
    • MR devices often employ sensors like cameras and depth sensors to map and understand the physical environment. This is known as spatial mapping.
    • These sensors create a 3D representation of the real world, allowing digital content to interact with and respond to the physical surroundings.
  2. Simultaneous Localization and Mapping (SLAM):
    • MR devices use SLAM algorithms to track the user's position and orientation in real-time.
    • This is crucial for overlaying digital information onto the physical environment and ensuring that virtual objects appear anchored in the real world.
  3. Gesture Recognition and Interaction:
    • MR systems often incorporate gesture recognition technology to enable users to interact with virtual objects in a natural way.
    • This involves tracking hand movements and gestures, allowing users to manipulate digital content as if it were part of the real world.
  4. Display Technology:
    • MR devices typically feature transparent displays that allow users to see both the virtual and real worlds simultaneously.
    • This is in contrast to Virtual Reality, where the user is fully immersed in a virtual environment with no direct view of the real world.

Key Technical Differences:

  • Interaction with the Physical World:
    • In MR, there is a strong emphasis on interacting with the physical environment. Virtual content is anchored to and interacts with real-world objects.
    • XR, on the other hand, is a broader term that encompasses both immersive and non-immersive experiences, including VR and AR.
  • Display Transparency:
    • MR devices usually have transparent displays or lenses, allowing users to maintain a direct view of the real world.
    • XR doesn't necessarily require transparency; it's a more inclusive term that covers a range of experiences, some of which may fully immerse the user in a virtual environment.

Extended Reality is the umbrella term that covers everything from Virtual Reality to Augmented Reality, while Mixed Reality specifically refers to the seamless integration of virtual and physical elements, often with a focus on maintaining a connection to the real world through transparency and interaction.