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Real-time online camera synchronization for volume carving on GPU

Real-time online camera synchronization for volume carving on GPU

Category
Part of a book/report
Abstract
Volume carving is a well-known technique for reconstructing a 3D scene from a set of 2D images, using features detected in individual cameras, and camera parameters. Spatial calibration of the cameras is well understood, but the resulting carved volume is very sensitive to temporal offsets between the cameras. Automatic synchronization between the cameras is therefore desirable. In this paper, we present a highly efficient implementation of volume carving and synchronization on a heterogeneous system fitted with commodity GPUs using an improved version of the algorithm in [1]. An online, real-time synchronization system is described and evaluated on surveillance video of an indoor scene. Improvements to the state of the art CPU-based algorithms are described.
Language
English
Author(s)
Affiliation
  • SINTEF ICT / Anvendt matematikk
  • SINTEF ICT / Optiske målesystemer og dataanalyse
Year
2013
Publisher
IEEE
Book
10th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), 2013, Krakow, 27-30 Aug. 2013
ISBN
978-1-4799-0703-8
Page(s)
288 - 293