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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 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

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  1. Format-agnostic Approach for Production, Delivery and Rendering of Immersive Media Felix Lee HPC I 28.10.2013

  2. 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

  3. Scene Acquisition (1) OMNICAM ARRI Alexa HD Broadcast camera

  4. Scene Acquisition (2) Soundfield® Stereo pair Eigenmike® Gun mics

  5. 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)

  6. 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

  7. Saliency Detection • Image pyramid based saliency map • Create image pyramid: blur and shrink the image • Build the image differences • Add the image differences

  8. 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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