Dr Andrew Aubrey

• Research Activity
• Publications
• Other Activities

About me

I obtained my Ph.D. in 2008. The title of my thesis is “Exploiting The Bimodality of Speech in The Cocktail Party Problem” which covered areas in Speech and Video Signal Processing. Since 2009 I have been a research assistant to Prof. David Marshall in the School of Computer Science and Informatics at Cardiff University. Prior to my Ph.D I studied for a BEng (Hons) and MSc (with Distinction), both in Electronic Engineering.

Funding

Human Face Perception and Animation Network (HuFPA):

Together with Dr Job Van Der Schalk (School of Psychology) we obtained funding from the Graduate College to support a research staff network. The idea of the network is to bring together researchers who have an interest in human faces. The first meeting was on the 4th of May 2011, please see the HuFPA website for details of future meetings; members of staff and Ph.D students are welcome to attend. Please email myself or Dr Van Der Schalk for more details.

Research Interests

I am a member of the Visual Computing Group, the Human Factors Technology Centre (HFTC) and Research Institute of Visual Computing. My main reseach activities are in Human Face Animation. This includes the analysis of facial expressions and the modelling and synthesis of face dynamics. I am also currently working on audio-visual speech. I have recently developed an interest and started working in the pereption of human expressions and gestures. A general overview of the topics I am interested in are: Cocktail Party Problem, Bi-modality of human speech, Face animation, Face Perception, Analysing Audio-Visual Speech.

Publications

Journal:

• Tam, G. K. L., Fang, H., Aubrey, A.J., Grant, P.W., Rosin, P.L., Marshall, D., and Chen, M. "Visualization of Time-Series Data in Parameter Space for Understanding Facial Dynamics". Computer Graphics Forum (In press).
• Aubrey, A.J, Hicks, Y.A, Chambers, J.A, "Visual voice activity detection with optical flow", Image Processing, IET, Vol: 4, Issue: 6 December 2010.

Conference

• Aubrey, A.J., Kajic, V., Cingovska, I., Rosin, P.L., Marshall, D. "Mapping and Manipulating Facial Dyanamics", Int. Conf. on Automatic Face and Gesture Recognition, 2011.
• Aubrey, A., Marshall, D., Rosin, P.L., "Behaviour Transfer Between Expressive Talking Heads", FAA: The ACM / SSPNET 2nd International Symposium on Facial Analysis and Animation, October, 2010.
• Rivet, B., Aubrey, A., Girin, L., Hicks, Y., Jutten, C., Chambers, J., "Development and comparison of two approaches for visual speech analysis with application to voice activity detection", International Conference on Auditory Visual Speech Processing (AVSP), The Netherlands, 2007.
• Aubrey A, Rivet B, Hicks Y, Girin L, Chambers J, Jutten C, "Two Novel Visual Voice Activity Detectors Based on Appearance Models and Retinal Filtering", EUSIPCO, September 2007.
• Aubrey A, Hicks Y, Sanei S, Chambers J, "Study of Video Assisted BSS for Convolutive Mixtures", 12th Digital Signal Processing (DSP) Workshop and the 4th Signal Processing Education (SPE) Workshop 2006.
• Aubrey A.J, Hicks Y. A, Lees J, Chambers J. A, "Using the Bi-Modality of Speech for Convolutive Frequency Domain Blind Source Separation", Proc of IMA 7th International Conference on Mathematics in Signal Processing , 2006.

Other:

• Benjamin Havell, David Marshall, Yulia Hicks, Paul Rosin, Saeid Sanei and Andrew Aubrey, "Comparison of Techniques for Audio Driven Facial Animation", FAA: The ACM / SSPNET 2nd International Symposium on Facial Analysis and Animation, October, 2010.
• Andrew Aubrey, Gary K.L. Tam, David Marshall, Paul L. Rosin, Hui Fang, Phil W. Grant and Min Chen, "Comparing Feature-based Metrics for Facial Dynamics Analysis" FAA: The ACM / SSPNET 2nd International Symposium on Facial Analysis and Animation, October, 2010.
• Aubrey A, Chambers J.A, Hicks Y, Sanei S, Marshall D,"Video assisted speech source separation",ICA meeting, London 2005 , 2005.

Other Activities

Supervision

I currently co-supervise (secondary supervision) a Ph.D student, Ben Havell. Ben is investigating the best way to model co-articulation of audio-visual speech for the purpose of speech driven talking heads.
During the summers of 2009 and 2010 I co-supervised IASTE and Nuffield students in a variety of projects.

Teaching Activites

• Spring 2011: Image Processing using the Fourier Transform, as part of the 3rd year module CM0311.
• Spring 2011: Tutored in the School of Engineering for the MSc course, Intelligent Signal Processing (ENT7).
• Spring 2010: Linear Algebra, as part of 1st year module CM0167.
• Autumn 2010: Introduction to DSP, as part of 3rd year module CM0340.

Professional Activities

• 14th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES2010)
• The IEEE Workshop on Statistical Signal Processing (SSP 2009)
• International Digital Signal Processing Conference (DSP 2007).

Professional Memberships

Collaborators