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  4. c-Space: Time-evolving 3D Models (4D) from Heterogeneous Distributed Video Sources
 
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2016
Conference Paper
Title

c-Space: Time-evolving 3D Models (4D) from Heterogeneous Distributed Video Sources

Abstract
We introduce c-Space, an approach to automated 4D reconstruction of dynamic real world scenes, represented as time-evolving 3D geometry streams, available to everyone. Our novel technique solves the problem of fusing all sources, asynchronously captured from multiple heterogeneous mobile devices around a dynamic scene at a real word location. To this end all captured input is broken down into a massive unordered frame set, sorting the frames along a common time axis, and finally discretizing the ordered frame set into a time-sequence of frame subsets, each subject to photogrammetric 3D reconstruction. The result is a time line of 3D models, each representing a snapshot of the scene evolution in 3D at a specific point in time. Just like a movie is a concatenation of time-discrete frames, representing the evolution of a scene in 2D, the 4D frames reconstructed by c-Space line up to form the captured and dynamically changing 3D geometry of an event over time, thus enabling the user to interact with it in the very same way as with a static 3D model. We do image analysis to automatically maximize the quality of results in the presence of challenging, heterogeneous and asynchronous input sources exhibiting a wide quality spectrum. In addition we show how this technique can be integrated as a 4D reconstruction web service module, available to mobile end-users.
Author(s)
Ritz, Martin  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Knuth, Martin  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Domajnko, Matevz  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Posniak, Oliver
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Santos, Pedro
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Fellner, Dieter W.
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Mainwork
GCH 2016, Eurographics Workshop on Graphics and Cultural Heritage  
Conference
Symposium on Graphics and Cultural Heritage (GCH) 2016  
DOI
10.2312/gch.20161377
Language
English
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Keyword(s)
  • 3D computer graphics

  • 3D data acquisition

  • 3D data processing

  • 3D data representation

  • 3D model acquisition

  • 3D Model Reconstruction

  • 3D computer vision

  • 3D digitization

  • 3D rendering

  • 3D Modeling

  • emotion detection

  • emotion expression

  • emotion recognition

  • learning platforms

  • storytelling platforms

  • Augmented reality (AR)

  • augmented reality platforms

  • multimedia database systems

  • Lead Topic: Digitized Work

  • Lead Topic: Smart City

  • Lead Topic: Visual Computing as a Service

  • Research Line: Computer graphics (CG)

  • Research Line: Computer vision (CV)

  • Research Line: Human computer interaction (HCI)

  • Research Line: Modeling (MOD)

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