Through-the-Lens Multi-camera Synchronisation and Frame-Drop Detection for 3D Reconstruction

Synchronisation is an essential requirement for multiview 3D reconstruction of dynamic scenes. However, the use of HD cameras and large set-ups put a considerable stress on hardware and cause frame drops, which is usually detected by manually verifying very large amounts of data. This paper improves...

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Bibliographic Details
Main Authors: Imre, E., Guillemaut, J., Hilton, A.
Format: Conference Proceeding
Language:English
Subjects:
camera network synchronisation
Cameras
frame-drop detection
High definition video
Indexes
Pipelines
Synchronization
Three dimensional displays
through-the-lens synchronisation
Trajectory
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Summary:Synchronisation is an essential requirement for multiview 3D reconstruction of dynamic scenes. However, the use of HD cameras and large set-ups put a considerable stress on hardware and cause frame drops, which is usually detected by manually verifying very large amounts of data. This paper improves [9], and extends it with frame-drop detection capability. In order to spot frame-drop events, the algorithm fits a broken line to the frame index correspondences for each camera pair, and then fuses the pair wise drop hypotheses into a consistent, absolute frame-drop estimate. The success and the practical utility of the the improved pipeline is demonstrated through a number of experiments, including 3D reconstruction and free-viewpoint video rendering tasks.
ISSN:1550-6185
DOI:10.1109/3DIMPVT.2012.31