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Real-time construction and visualisation of drift-free video mosaics from unconstrained camera motion

Breszcz, M.; Breckon, T.P.

Real-time construction and visualisation of drift-free video mosaics from unconstrained camera motion Thumbnail


Authors

M. Breszcz



Abstract

This work proposes a novel approach for real-time video mosaicking facilitating drift-free mosaic construction and visualisation, with integrated frame blending and redundancy management, that is shown to be flexible to a range of varying mosaic scenarios. The approach supports unconstrained camera motion with in-sequence loop closing, variation in camera focal distance (zoom) and recovery from video sequence breaks. Real-time performance, over extended duration sequences, is realised via novel aspects of frame management within the mosaic representation and thus avoiding the high data redundancy associated with temporally dense, spatially overlapping video frame inputs. This managed set of image frames is visualised in real time using a dynamic mosaic representation of overlapping textured graphics primitives in place of the traditional globally constructed, and hence frequently reconstructed, mosaic image. Within this formulation, subsequent optimisation occurring during online construction can thus efficiency adjust relative frame positions via simple primitive position transforms. Effective visualisation is similarly facilitated by online inter-frame blending to overcome the illumination and colour variance associated with modern camera hardware. The evaluation illustrates overall robustness in video mosaic construction under a diverse range of conditions including indoor and outdoor environments, varying illumination and presence of in-scene motion on varying computational platforms.

Citation

Breszcz, M., & Breckon, T. (2015). Real-time construction and visualisation of drift-free video mosaics from unconstrained camera motion. Journal of Engineering, 2015(8), 229-240. https://doi.org/10.1049/joe.2015.0016

Journal Article Type Article
Acceptance Date Jun 18, 2015
Online Publication Date Aug 4, 2015
Publication Date Aug 4, 2015
Deposit Date Oct 4, 2015
Publicly Available Date Mar 29, 2024
Journal Journal of Engineering
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 2015
Issue 8
Pages 229-240
DOI https://doi.org/10.1049/joe.2015.0016
Related Public URLs http://community.dur.ac.uk/toby.breckon/publications/papers/breszcz15mosaic.pdf

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