Improved 3D model search for facial feature location and pose estimation in 2D images

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper tackles the problem of accurately matching a 3D deformable face model to sequences of images in challenging real-world scenarios with large amounts of head movement, occlusion, and difficult lighting conditions. A baseline system involves searching with a set of view-dependent local patches to locate image features, and using these to update the face shape model parameters. We show here two modifications that lead to improvements in performance and can be applied in other similar systems. These are: explicitly searching for occluding boundaries, which prevents the model from rotating rather than changing shape; and a simple method for weighting the relative importance of each located match for model fit. We demonstrate the improvements on both standard test sets and on a series of difficult in-car driver videos, showing more accurate matching and fewer search failures. © 2010. The copyright of this document resides with its authors.

Bibliographical metadata

Original languageEnglish
Title of host publicationBritish Machine Vision Conference, BMVC 2010 - Proceedings|Br. Mach. Vis. Conf., BMVC - Proc.
PublisherBMVA Press
Number of pages1
DOIs
Publication statusPublished - 2010
Event2010 21st British Machine Vision Conference, BMVC 2010 - Aberystwyth
Event duration: 1 Jul 2010 → …

Conference

Conference2010 21st British Machine Vision Conference, BMVC 2010
CityAberystwyth
Period1/07/10 → …