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Browsing by Author "Duvenhage, B"

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3D visual analysis tool in support of the SANDF's growing ground based air defence simulation capability

Author: Duvenhage, B ; Delport, JP ; Louis, A Date: Oct 2007 A 3D visual analysis tool has been developed to add value to the SANDF's growing Ground Based Air Defence (GBAD) System of Systems simulation capability. A time based XML interface between the simulation and analysis tool, via a TCP connection ... Read more
Alternative to dead reckoning for model state quantisation when migrating to a quantised discrete

Author: Duvenhage, A ; Duvenhage, B Date: Jun 2008 Some progress has recently been made on migrating an existing distributed parallel discrete time simulator to a quantised discrete event architecture. The migration is done to increase the scale of the real-time simulations supported by the ... Read more
Contribution of static and dynamic load balancing in a real-time distributed air defence simulation

Author: Duvenhage, B ; Nel, JJ Date: May 2008 Simulations with a large number of model instances make use of parallel architectures to improve performance. When using such a parallel architecture a challenge is to effectively distribute the simulation objects across the processing ... Read more
Effectively utilising a 3rd party 3D visualization component in a discrete event simulation environment for Joint Command and Control (JC2)

Author: Ramadeen, P ; Duvenhage, B ; Duvenhage, A Date: Sep 2009 A 3rd party 3-dimensional visualization tool (developed by the Council for Scientific and Industrial Research (CSIR)) is being used to visualize and assist with the development of a synthetic environment for joint command and control technology ... Read more
Exploring the use of glossy light volumes for interactive global illumination

Author: Duvenhage, B ; Bouatouch, K ; Kourie, D Date: Jun 2010 From the literature, it is known that backward polygon beam tracing and other light volume methods are well suited to gather path coherency from specular scattering surfaces. This is of course useful for modelling and efficiently simulating ... Read more
Extending backward polygon beam tracing to glossy scattering surfaces

Author: Duvenhage, B ; Bouatouch, K ; Kourie, DG Date: May 2011 Backward polygon beam tracing methods, that is beam tracing from the light source (L), are well suited to gather path coherency from specular (S) scattering surfaces. These methods are useful for modelling and efficiently simulating caustics ... Read more
Generation of super-resolution stills from video

Author: Duvenhage, B Date: Nov 2014 The real-time super-resolution technique discussed in this paper increases the effective pixel density of an image sensor by combining consecutive image frames from a video. In surveillance, the higher pixel density lowers the Nyquist rate ... Read more
Implementation of the Lucas-Kanade image registration algorithm on a GPU for 3D computational platform stabilisation

Author: Duvenhage, B ; Delport, JP ; De Villiers, J Date: Jun 2010 Image registration forms the basis of many computer vision tasks. The Lucas-Kanade image registration algorithm is known to efficiently solve the sub-problem of rigid image registration. It is therefore often used in image stabilisation ... Read more
Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation

Author: Duvenhage, B ; Nel, JJ Date: Sep 2007 The modelling of military systems of systems invariably involves the incorporation of existing, often shared, models into larger and more complex simulations. The sharing of models between simulations has long been the goal of the simulation ... Read more
Light beam tracing for multi-bounce specular and glossy transport paths

Author: Duvenhage, B ; Bouatouch, K ; Kourie, DG Date: Sep 2014 This paper describes a new extension to light beam tracing that includes glossy multi-bounce transport paths for more realistic rendering of caustics. A spherical Gaussian approximation of the glossy scatter distribution as well as Gauss' ... Read more
Long range image enhancement

Author: Duvenhage, B Date: Nov 2015 Turbulent pockets of air in the atmosphere blur and disrupt the Point Spread Function (PSF) of a surveillance system. The PSF peak is offset in location, changed in size and in short exposures (or mild conditions) noticeably fragmented or ... Read more
Migrating to a real-time distributed parallel simulator architecture

Author: Duvenhage, B ; Kourie, DG Date: Jul 2007 A legacy non-distributed logical time simulator is migrated to a distributed architecture to parallelise execution. The existing Discrete Time System Specification (DTSS) modelling formalism is retained to simplify the reuse of existing models. ... Read more
Migrating to a real-time distributed parallel simulator architecture- An update

Author: Duvenhage, B Date: Sep 2007 A legacy non-distributed logical time simulator was previously migrated to a distributed architecture to parallelise execution. The existing Discrete Time System Specification (DTSS) modelling formalism was retained to simplify the reuse of ... Read more
Peer-to-Peer Simulation Architecture

Author: Duvenhage, B ; Le Roux, WH Date: Jun 2007 Distributed parallel and soft real-time simulation architecture is presented. It employs a publish-subscribe communication framework layered on a peer-to-peer Transport Control Protocol-based message passing architecture. Mechanisms for ... Read more
Proven collaboration model for impact generating research with universities

Author: Bezuidenhout, DF ; De Villiers, JP ; Delport, JP ; Bachoo, AK ; Duvenhage, B ; Hattingh, Z ; Calitz, R ; Jeebodh, P Date: 01 Sep 2010 PRISM is one of a family of student sponsorship programmes initiated by the Department of Defence (DoD). The programme facilitates the transfer of knowledge and fosters the development of skilled human capital in the disciplines of optics, ... Read more
Real-time spectral scene lighting on a fragment pipeline

Author: Duvenhage, B Date: Oct 2006 This paper describes an innovative “physically based” spectral lighting, material and camera model that is based on radiometry theory and is an expansion of the historical fixed pipeline graphics system. There are two render target modes of ... Read more
Using 3D and information visualisation to improve perception and facilitate situation awareness

Author: Duvenhage, B ; Delport, JP Date: 01 Sep 2010 CSIR engineers are developing a 3D viewer library called Sentience3D. The goal is to aid users and developers of simulations in building the visualisation tools they need to achieve the required level of situation awareness in their virtual ... Read more
Using an implicit min/max KD-Tree for doing efficient terrain line of sight calculations

Author: Duvenhage, B Date: Feb 2009 The generation of accurate Line of Sight (LOS) visibility information consumes significant resources in large scale synthetic environments such as many-on-many serious games and battlefield simulators. Due to the importance of optimum utilisation ... Read more

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Browsing by Author "Duvenhage, B"

Browsing by Author "Duvenhage, B"

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