format agnostic approach for production delivery and rendering of immersive media
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Format-agnostic Approach for Production, Delivery and Rendering of Immersive Media. Felix Lee HPC I 28.10.2013. real-time acquisition warping & stitching blending and rendering of 6 HD video streams one panoramic video of 7k x 2k resolution on a single PC exploiting GPU processing.

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format agnostic approach for production delivery and rendering of immersive media

Format-agnostic Approach for Production, Delivery and Rendering of Immersive Media

Felix Lee

HPC I

28.10.2013

real time live panoramic video omnicam
real-time acquisition

warping & stitching

blending and rendering of 6 HD video streams

one panoramic video of 7k x 2k resolution

on a single PC exploiting GPU processing

Real-time Live Panoramic VideoOMNICAM
scene acquisition 1
Scene Acquisition (1)

OMNICAM

ARRI Alexa

HD Broadcast camera

scene acquisition 2
Scene Acquisition (2)

Soundfield®

Stereo pair

Eigenmike®

Gun mics

three demo productions so far
Three Demo Productions (so far)
  • Football
    • Premier League GameChelsea FC – Wolverhampton Wanderers (London, October 2010)
  • Dance Performance
    • Carmen SuiteBerlin Philharmonic Orchestra conducted by Sir Simon Rattle & Dance Compagnie Sasha Waltz (Berlin, May 2012)
  • Concert
    • BBC Proms (London, August 2012)
saliency map
Saliency Map
  • Center-surround model
    • inspired from biological models of human visual sensory system
  • Center-surround features
    • Pixel intensity
    • Color chromatic opponents RG and BY
  • Saliency map for still images
saliency detection
Saliency Detection
  • Image pyramid based saliency map
    • Create image pyramid: blur and shrink the image
    • Build the image differences
    • Add the image differences
spatio temporal saliency histograms
Spatio-temporal SaliencyHistograms
  • Spatiotemporal saliency model
    • Split image into grid cells (cell size: e.g. 20x20 pixels for HD)
    • Compute histogram of pyramid differences for each cell
    • Compare histograms
      • Current histogram vs. average of histograms from past second
      • Distance function: earth mover distance
  • Region of interest (ROI)
    • Convert high salient regions into rectangles
  • Application: automatic view selection
  •  Demo video
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