Watch and Share hologram 

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Why Metalograms ?

Even is multiple VR video platforms are available and provide high quality content, none of them allow you to have an immersive experience allowing you to at least slightly move in the video. Except for the video resolution, the experience of 3D 360° video has not improved for almost 10 years and is similar to what you were able to experience with a Samsung Gear VR (2015) or a Google Cardboard (2014). In the meantime VR headset improved allowing you not only to rotate the head but also move/translate it, thus going from 3-DOF (degrees of freedom) to 6-DOF (x,y,z rotation + x,y,z translation).
Facing the absence of true immersive video platform we decided to launch our own hologram video hosting platform, allowing VR headset users to watch and also share its own.

The challenge is quite complex, mainly because of the lack of content, it's like trying to sell color video tapes in 1940 with the existence of only B&W film due to the scarcity of color video recorder.

Meta Oculus Quest 2 - best solution to watch hologram video

How to watch volumetric video ?

Best immersive experience is with a VR Headset, such as the Meta Oculus Quest 2. However, our experiences will be available from any smartphone or computer.

Volumeric capture studio

Metastage volumetric capture studio - Photo courtesy Eric Cheng

How to record volumetric video ?

Recording good quality volumetric video is currently expensive as it involves the use of dozens of synchronized 4k cameras, costly software and powerful computer.

Some application allows to record volumetric video with limited point of view ("2.5D") and quality with the use of low-cost 3D camera (RGBD) such as Microsoft Kinect or iPhone/Android smartphones with ToF/LiDAR sensor. This is the good alternative for common user.

Companies are also investing time to be able to record holograms with the use of only one standard smartphone and the help of complex AI algorithms. The deep learning algorithms will "recognize" your skeleton and pose, estimate your size and "guess" your back side. Outstanding!

Hologram, volumetric video, VR video, videogrammetry, 6-DOF... some definitions

  • What is an hologram?
    An hologram is the device which project a 3D image or video, without the need to wear special glasses. True hologram is not yet possible. The only commercial technology that comes close is the "Looking Glass" device.
    In the popular culture, hologram refers to 3D video of a person as seen in Star Wars movies or in other words, a 3D video which can be seen from all angles; and holoprojector to the device. 
  • What is a volumetric video?
    A volumetric video is a 3D video where you can move: 360° rotation and also going right, left, forward and backward. The term volumetric video or its synonym free viewpoint video has a scientific connotation. Holographic video or hologram video is more used by common people.
  • What is a VR video?
    A Virtual Reality video is a 360° or 180° video.
    A 3D VR Video will give a depth of field as it provides 2 video, one per eye. But it is not possible to make a step forward, backward, on the left or on the right.
  • What is 6 DOF video?
    Synonym of volumetric video as 6 degrees of freedom means x,y,z head rotation and x,y,z head translation.
    3-DOF video is synonym to 360° video, as there is only the x,y,z rotation.
  • What is photogrammetry ?
    Photogrammetry is the technique to re-create 3D static object or scene, taking multiple pictures of it. Triangulation will be done across same feature points found on images, to estimate its 3D position. As an example to recreate my room, I needed to take 750 pictures and a couple of hours of calculation.
  • What is videogrammetry ?
    Videogrammetry is a technique to make volumetric video using photogrammetry, as a video is usually 30 images per seconds.
  • What is the difference between AR, VR and MR?
    Virtual Reality is the technology to create a simulated environment where you can at least move 360° your head, with the use of an head-mounted display (HMD) also called VR headset.
    Augmented Reality is the technology which add an overlay on your camera feed which match the position of real objects detected. The most known example is the game Pokemon Go.
    Mixed Reality is the mix of AR and VR also called XR.
  • What is the Metaverse?
    The metaverse is a buzz word, and is expected to be the combination of multiple technologies : AR, VR, MR, online 3D virtual social world, and NFT. NFT for Non Fungible Token is a cryptographic technology to identify the owner of a virtual object. Thus you will be able to purchase land or use the same virtual object you own across applications.
    Metaverse is expected to be the web 3.0 and available around 2025-2030

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