Estimation of dense, non-rigid motion fields from a multi-camera array using a hierarchical mixture model
Bowen, A., Mullins, A., Wilson, Roland, 1949- and Rajpoot, Nasir M. (Nasir Mahmood) (2008) Estimation of dense, non-rigid motion fields from a multi-camera array using a hierarchical mixture model. In: Perales, F. J. and Fisher, R. B., (eds.) Articulated motion and deformable objects. Lecture Notes in Computer Science (5098). Springer-Verlag, pp. 11-21. ISBN 9783540705161Full text not available from this repository.
Official URL: http://dx.doi.org/10.1007/978-3-540-70517-8_2
The problem of modelling objects of arbitrary complexity for video based rendering has been much studied in recent years, with the growing interest in `free viewpoint' video and similar applications. Typical approaches fall into two categories: those which approximate surfaces from dense depth maps obtained by generalisations of stereopsis methods and those which employ an explicit geometric representation such as a mesh. While the former has generality with respect to geometry, it is inevitably limited in terms of viewpoint; the latter, on the other hand, sacrifices generality of object geometry for freedom to pick an arbitary viewpoint. The purpose of the work reported here is to bridge this gap in object representation, by employing a surface element model, but one which is freed from the restrictions of a mesh. Estimation of the model and tracking it through time from multiple cameras is achieved by novel multiresolution stochastic simulation methods. After a brief outline of the method, its use in modelling human motions using data from the Warwick multicamera studio is presented to illustrate its e ectiveness compared to the current state of the art.
|Item Type:||Book Item|
|Subjects:||Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software|
|Divisions:||Faculty of Science > Computer Science|
|Series Name:||Lecture Notes in Computer Science|
|Book Title:||Articulated motion and deformable objects|
|Editor:||Perales, F. J. and Fisher, R. B.|
|Page Range:||pp. 11-21|
|Status:||Not Peer Reviewed|
|Access rights to Published version:||Restricted or Subscription Access|
|Conference Paper Type:||Paper|
|Type of Event:||Conference|
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