• Publications
  • Influence
High-quality passive facial performance capture using anchor frames
A robust image-space tracking method that computes pixel matches directly from the reference frame to all anchor frames, and thereby to the remaining frames in the sequence via sequential matching is introduced, in contrast to previous sequential methods. Expand
High-quality single-shot capture of facial geometry
A passive stereo system for capturing the 3D geometry of a face in a single-shot under standard light sources is described, modified of standard stereo refinement methods to capture pore-scale geometry, using a qualitative approach that produces visually realistic results. Expand
Design galleries: a general approach to setting parameters for computer graphics and animation
This paper describes the use of DG interfaces for several parameter-setting problems: light selection and placement for image rendering, both standard and image-based; opacity and color transfer-function specification for volume rendering; and motion control for particle-system and articulated-figure animation. Expand
Optimal Reciprocal Collision Avoidance for Multiple Non-Holonomic Robots
Non-holonomic optimal reciprocal collision avoidance (NH-ORCA) builds on the concepts introduced in [2], but further guarantees smooth and collision-free motions under non- holonomic constraints. Expand
Sequential Updating of Projective and Affine Structure from Motion
A specialisation of the algorithm to recover structure and camera position modulo an affine transformation is described, together with a method to periodically update the affine coordinate frame to prevent drift over time. Expand
3D Model Acquisition from Extended Image Sequences
A method for matching image primitives through a sequence is described, for the purpose of acquiring 3D geometric models. The method includes a novel robust estimator of the trifocal tensor, based onExpand
Image-based 3D photography using opacity hulls
The system is the first to acquire and render surface reflectance fields under varying illumination from arbitrary viewpoints, and has built three generations of digitizers with increasing sophistication. Expand
Tangible interaction + graphical interpretation: a new approach to 3D modeling
It is argued that construction toys, suitably instrumented or sensed, could be the inspiration for a new generation of easy-to-use, tangible modeling systems—especially if the tangible modeling is combined with graphical-interpretation techniques for enhancing nascent models automatically. Expand
iLamps: geometrically aware and self-configuring projectors
Geometrical issues for enhanced projectors are examined, relating to customized projection for different shapes of display surface, object augmentation, and co-operation between multiple units, using conformal texture mapping. Expand
Computer Vision for Interactive Computer Graphics
This work describes vision algorithms for interactive graphics and presents vision-controlled graphics applications using these algorithms to help make computers easier to use. Expand