● view-driven mesh refinement / level-of-detail scheme with geomorphing ● ‘ambient’ (procedural) waves with dispersion property ● ‘interactive’ waves with dispersion property (which we believe is a technological first for games) ● real-time procedural normal maps, with distance-based cross-over into geometry ● optical effects including Fresnel reflectance, cloudy water, and refraction ● special...

A state-of-the-art Gaussian-Mixture-Modelling (GMM) text-independent speaker recognition system has been developed. The system, perfectly suited to the Bayesian approach for Forensic Speaker Recognition, works in a user-friendly platform (Win95/98/NT/2000/me) in a fully user-configurable environment. Speaker modelling, identification and verification are the main functions of the system. The sy...

We show that there is no Curtis-Hedlund-Lyndon Theorem for factor maps between tiling dynamical systems: there are codes between such systems which cannot be achieved by working within a finite window. By considering 1-dimensional tiling systems, which are the same as flows under functions on subshifts with finite alphabets of symbols, we construct a ‘simple’ code which is not ‘local’, a local ...

We report on a technique for the computation of color edge maps using Hering's Color Space for color coding, and quasiranges, for edge detection. A suitable combination of the resulting edge maps gives an image that is a meaningful visual approximation to the original image. Being an edge map, storage in a small memory space is possible. Finally, a study on the performance depending on the thre...

We present a novel approach to real-time dense visual SLAM. Our system is capable of capturing comprehensive dense globally consistent surfel-based maps of room scale environments explored using an RGB-D camera in an incremental online fashion, without pose graph optimisation or any postprocessing steps. This is accomplished by using dense frame-tomodel camera tracking and windowed surfel-based...

This article describes a large-scale empirical evaluation across different types of English text collections. We ran about 140,000 experiments and analyzed the results on system component-level to find out if we can select configurations that perform reliable on specific types of corpora. To our own surprise we observed that a specific set of configuration parameters achieved 95% of the optimal...

The real points of the Deligne-Knudsen-Mumford moduli space M0 of marked points on the sphere have a natural tiling by associahedra. We extend this idea to construct an aspherical space tiled by cyclohedra. We explore the structure of this space, coming from blow-ups of hyperplane arrangements, as well as discuss possibilities of its role in knot theory and mathematical physics. To the memory o...

The fidelity of depth seismic imaging depends on the accuracy of the velocity models used for wavefield reconstruction. Models can be decomposed in two components corresponding to large scale and small scale variations. In practice, the large scale velocity model component can be estimated with high accuracy using repeated migration/tomography cycles, but the small scale component cannot. There...

In mapping textures onto 3D models, it is essential to eliminate all seams and avoid excessive distortions. To achieve these goals, texture tiling provides an alternative approach for texturing surfaces. In this paper, a texture tiling approach that combines polycube-maps and Wang tiles for 3D models is proposed. The polycube of a 3D model is first constructed automatically and a tiling mechani...

Theoretical foundations of higher order spectral analysis are revisited to examine the use of time-varying bicoherence on non-stationary signals using a classical short-time Fourier approach. A methodology is developed to apply this to evoked EEG responses where a stimulus-locked time reference is available. Short-time windowed ensembles of the response at the same offset from the reference are...