The article is devoted to description of a developed tool for interactive registration, validation and almost real-time visualization of large amount of high resolution morphological and kinematic data. Medical profes...
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ISBN:
(纸本)0819458244
The article is devoted to description of a developed tool for interactive registration, validation and almost real-time visualization of large amount of high resolution morphological and kinematic data. Medical professionals usually work with custom made and non-interactive programs which greatly slow down their efficiency. The approach described has been implemented in a universal software product to pursue different goals simultaneously and to use the same software for research, educational and clinical applications.
The Australian Defence Science and Technology Organisation (DSTO) has been closely associated with advanced distributedsimulation exercises since the mid 1990s. These have included international networking exercises ...
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ISBN:
(纸本)9781622761418
The Australian Defence Science and Technology Organisation (DSTO) has been closely associated with advanced distributedsimulation exercises since the mid 1990s. These have included international networking exercises such as those conducted under the auspices of the Coalition Readiness Management System (CReaMS) Project Arrangement between the United States Navy and Royal Australian Navy where many different systems were required to interoperate for the training activity to succeed. Considerable experience has been gained with establishing interoperability among simulations and simulators, generally using the distributedinteractivesimulation (DIS) protocol. This has led to Australian participation in the simulation Interoperability Standards Organisation (SISO) via the working groups with a particular interest in DIS. Due to experience with international exercises, Australia's main area of expertise is in simulated communications under DIS. This paper details Australia's contribution to the DIS update effort, which has included contributing to internationalsimulation Interoperability workshops, regular international teleconferences, and also submitting formal problem/change requests for issues encountered during simulator testing activities and recent training exercises. The revised DIS standard will benefit both the international and Australian Defence Force training communities by reducing interoperability related defects of newly built training simulators. Australian interest in other simulation interoperability standards such as the realtime Platform Reference Federation Object Model (RPR-ROM) and the DIS enumerations will also be discussed.
HLA, a DoD high level architecture, is emerging as an IEEE standard platform for large-scale distributedinteractivesimulation systems. It mainly emphasizes on the reusability and interoperability of different simula...
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HLA, a DoD high level architecture, is emerging as an IEEE standard platform for large-scale distributedinteractivesimulation systems. It mainly emphasizes on the reusability and interoperability of different simulation components. However, HLA/RTI shows apparent weaknesses when it comes to distributedreal-timesimulationapplications. In this paper, we propose a real-time RTI system, based upon a multi-threaded process model that addresses the weakness of HLA/RTI in terms of real-timeapplications. We discuss our real-time mechanism, and highlight the main design issues of our real-time RTI. We describe its implementations, and present an extensive set of simulation experiments to evaluate its performance using realistic models.
Considering the constant increase of network traffic, and existing bandwidth limitations, caching Internet objects is an essential technique to improve the provided quality of service and to reduce the network load Ca...
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ISBN:
(纸本)0769524559
Considering the constant increase of network traffic, and existing bandwidth limitations, caching Internet objects is an essential technique to improve the provided quality of service and to reduce the network load Caching is particularly helpful for video objects due to their interactive nature, large size, long playback duration, realtime constraints, and typically variable bitrate. Several caching schemes for video streams have been proposed in the literature. The performance of the existing methods generally degrades in applications like video on demand where random access is common. In this paper a new two tiered proxy caching scheme for random access applications has been proposed The proposed design consists of two layers: the Cache layer and the Fetch layer. The Cache layer divides the incoming video stream into small segments, and selects the segments that should be cached based on their current access probability and the utility they provide. The Fetch layer organizes the outgoing requests according to the priority it assigns to them. simulation results indicate that the proposed technique outperforms existing caching schemes when random access is significant. The provided utility is up to three times better than the existing solutions.
In this paper, we present how FlowVR enables the development of modular and high performance VR applications running on a PC cluster. FlowVR is a middleware we specifically developed targeting distributedinteractive ...
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The proceedings contain 29 papers. The topics discussed include: low-cost, portable, multi-wall virtual reality;using a single spatial light modulator for stereoscopic images of high color quality and resolution;imper...
ISBN:
(纸本)3905673215
The proceedings contain 29 papers. The topics discussed include: low-cost, portable, multi-wall virtual reality;using a single spatial light modulator for stereoscopic images of high color quality and resolution;imperceptible projection blanking for reliable segmentation within mixed reality applications;optical tracking and calibration of tangible interaction devices;running large VR applications on a PC cluster: the flow VR experience;a game engine-based multi-projection virtual environment with system-level synchronization;towards a general concept for distributed visualization of simulations in virtual reality environments;dynamic bounding volume hierarchies for occlusion culling;real-time deformation of detailed geometry based on mappings to a less detailed physical simulation on the GPU;augmented reality interaction for semiautomatic volume classification;and distributed software-based volume visualization in a virtual environment.
The proceedings contain 19 papers. The topics discussed include: a mobile agent-based system for dynamic task allocation in clusters of embedded smart cameras;large scale testing of pervasive computing systems using m...
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The proceedings contain 19 papers. The topics discussed include: a mobile agent-based system for dynamic task allocation in clusters of embedded smart cameras;large scale testing of pervasive computing systems using multi-agent simulation;automated high-accuracy hybrid measurement for distributed embedded systems;feasibility study of a novel bio-inspired location sensor concept for indoor location based services in ambient intelligence applications;adaptive low-power analog/digital converters for wireless sensor networks;synchronization in wireless sensor networks using Bluetooth;topology control for fault-tolerant communication in highly dynamic wireless networks;and data processing system for denoising of signals in real-time using the wavelet transform.
The following topics are dealt with: collaborative working environments; distributedsimulation; collaborative virtual environments; networks and peer-to-peer; COTS simulation package interoperability; agents and simu...
The following topics are dealt with: collaborative working environments; distributedsimulation; collaborative virtual environments; networks and peer-to-peer; COTS simulation package interoperability; agents and simulation; collaborative virtual environments; real-time application and modeling and simulation methodology.
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