Visual perception of faces is invariant under many transformations, perhaps the most
problematic of which is pose change (face rotating in depth). We use a variation of Gabor …

We propose a framework for the representation of visual knowledge in a robotic agent, with
special attention to the understanding of dynamic scenes. According to our approach …

Human activities are characterised by the spatio-temporal structure of their motion patterns.
Such structures can be represented as temporal trajectories in a high-dimensional feature …

The paper reviews the characteristics of human face recognition that should be reflected in
any psychologically plausible computational model of face recognition. We then summarise …

Robust tracking and segmentation of faces is a prerequisite for face analysis and
recognition. In this paper we describe an approach to this problem which is well suited to …

A real-time tracking system suitable for surveillance applications was implemented on
pipeline image processing hardware. Motion estimation was performed using a symmetric …

The human visual system is capable of interpreting a remarkable variety of often subtle,
learnt, characteristic behaviours. For instance we can determine the gender of a distant …

This paper proposes the use of neural networks as a tool for studying navigation within
virtual worlds. Results indicate that network learned to predict the next step for a given …

This paper reports initial research on supporting Visually Mediated Interaction (VMI) by
develo** person-specific and generic gesture models for the control of active cameras …

E-mail: vicki. bruce@ stir. ac. uk plications which may affect the accuracy of the witness. For
example, people experience difficulties when identifying faces of people of another race …