Skip to Main content Skip to Navigation
Conference papers

Facial Motion Analysis using Clustered Shortest Path Tree Registration

Abstract : We describe a method of automatically annotating video sequences, defining a set of corresponding points in every frame. This is an important pre-processing step for many motion analysis systems. Rather than tracking feature points through the sequence, we treat the problem as one of ‘groupwise registration', in which we seek to find the correspondence between every image and an automatically computed model reference, ignoring the ordering of frames. The main contribution of this work is to demonstrate a method of clustering the frames and constructing a shortest path tree over the clusters. This tree defines the order in which frames will be registered with an evolving estimate of the mean. This technique is shown to lead to a more accurate final result than if all frames are registered simultaneously. We describe the method in detail, and demonstrate its application to face sequences used in an experiment to assess the degree of facial motion. The resulting ranking is found to correlate well with that produced by human subjects.
Document type :
Conference papers
Complete list of metadata

Cited literature [9 references]  Display  Hide  Download

https://hal.inria.fr/inria-00326726
Contributor : Peter Sturm <>
Submitted on : Sunday, October 5, 2008 - 12:50:19 PM
Last modification on : Wednesday, January 10, 2018 - 6:08:05 PM
Long-term archiving on: : Friday, June 4, 2010 - 12:12:48 PM

File

mlvma08_submission_11.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : inria-00326726, version 1

Collections

Citation

David Cristinacce, Tim Cootes. Facial Motion Analysis using Clustered Shortest Path Tree Registration. The 1st International Workshop on Machine Learning for Vision-based Motion Analysis - MLVMA'08, Oct 2008, Marseille, France. ⟨inria-00326726⟩

Share

Metrics

Record views

257

Files downloads

353