The Visual Hull Concept for Silhouette-Based Image Understanding
IEEE Transactions on Pattern Analysis and Machine Intelligence
blue-c: a spatially immersive display and 3D video portal for telepresence
ACM SIGGRAPH 2003 Papers
A polyhedron representation for computer vision
AFIPS '75 Proceedings of the May 19-22, 1975, national computer conference and exposition
Efficient Polyhedral Modeling from Silhouettes
IEEE Transactions on Pattern Analysis and Machine Intelligence
Synchronization of Images from Multiple Cameras to Reconstruct a Moving Human
DS-RT '10 Proceedings of the 2010 IEEE/ACM 14th International Symposium on Distributed Simulation and Real Time Applications
Accelerated polyhedral visual hulls using OpenCL
VR '11 Proceedings of the 2011 IEEE Virtual Reality Conference
Real-time dynamic 3-D object shape reconstruction and high-fidelity texture mapping for 3-D video
IEEE Transactions on Circuits and Systems for Video Technology
A combined studio production system for 3-D capturing of live action and immersive actor feedback
IEEE Transactions on Circuits and Systems for Video Technology
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We present an analysis of the requirement for input synchronisation in a multi-camera 3D reconstruction system for real-time applications such as telepresence.脗 Synchronisation of the cameras at the acquisition stage is universally used to ensure the images feeding the reconstruction algorithm were taken at the same time.脗 However, this requirement adds delays to the reconstruction pipeline, therefore increasing the end to end latency of the system.脗 While this has not been a significant problem for many of the applications of 3D reconstruction, it is for its application to tele-presence. Furthermore, synchronising the firing of cameras adds much financial cost to the system. Using real camera images of moving humans, we study the effect removing synchronisation has on the output reconstructed model over a range of camera configurations and relative frame delays.脗 From this we determine the synchronisation requirements for a 3D reconstruction telepresence system in terms of the maximum time between camera frames that gives rise to acceptable results.