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Felix Lee HPC I 28102013 Realtime Live Panoramic Video OMNICAM realtime acquisition warping amp stitching blending and rendering of 6 HD video streams one panoramic video of 7k x 2k ID: 540086 Download Presentation
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Presentation on theme: "Format-agnostic Approach for Production, Delivery and Rende"— Presentation transcript
Slide1
Format-agnostic Approach for Production, Delivery and Rendering of Immersive Media
Felix Lee
HPC I
28.10.2013Slide2
Real-time Live Panoramic VideoOMNICAM
real-time acquisition
warping & stitching
blending and rendering of 6 HD video streamsone panoramic video of 7k x 2k resolutionon a single PC exploiting GPU processingSlide3
Scene Acquisition (1)
OMNICAM
ARRI Alexa
HD Broadcast cameraSlide4
Scene Acquisition (2)
Soundfield®
Stereo pair
Gun mics
Eigenmike®Slide5
FootballPremier League GameChelsea FC – Wolverhampton Wanderers (London, October 2010)
Dance Performance
Carmen Suite
Berlin Philharmonic Orchestra conducted by Sir Simon Rattle & Dance Compagnie Sasha Waltz (Berlin, May 2012)ConcertBBC Proms (London, August 2012)
Three Demo Productions (so far)Slide6
Saliency Map
Center-surround model
inspired from biological models of human visual sensory system
Center-surround featuresPixel intensity
Color chromatic opponents RG and BY
Saliency map for still images
Slide7
Saliency Detection
Image pyramid based saliency map
Create image pyramid: blur and shrink the image
Build the image differences
Add the image differencesSlide8
Spatio-temporal Saliency
Histograms
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