Withthe emergence of new and sophisticated control devices like data gloves and data suits, there is an increasing need to integrate gestural expression into the musical composition and performance environment. In su...
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the proceedings contain 69 papers. the special focus in this conference is on parallel Numerics, parallel Computing in Image processing, Video processing, and Multimedia. the topics include: Non-standard parallel solu...
ISBN:
(纸本)3540656413
the proceedings contain 69 papers. the special focus in this conference is on parallel Numerics, parallel Computing in Image processing, Video processing, and Multimedia. the topics include: Non-standard parallel solution strategies for distributed sparse linear systems;optimal tridiagonal solvers on mesh interconnection networks;parallel pivots LU algorithm on the cray T3E;experiments withparallel one-sided and two-sided algorithms for SVD;combined systolic array for matrix portrait computation;a class of explicit two-step runge-kutta methods with enlarged stability regions for parallel computers;a parallel strongly implicit algorithm for solution of diffusion equations;a parallel algorithm for lagrange interpolation on k-ary n-cubes;long range correlations among multiple processors;a monte-carlo method with inherent parallelism for numerical solving partial differential equations with boundary conditions;blocking techniques in numerical software;HPF and numerical libraries;an object library for parallel sparse array computation;performance analysis and derived parallelization strategy for a SCF program at the hartree fock level;computational issues in optimizing ophthalmic lens;parallel finite element modeling of solidification processes;architectural approaches for multimedia processing;on parallel reconfigurable architectures for image processing;parallel multiresolution image segmentation with watershed transformation and solving irregular inter-processor data dependency in image understanding tasks.
In this paper, we have designed an efficient parallel algorithm for performing 3 D image reconstruction. In our framework, we have considered 3 D image to be reconstructed from a series of 2 D images, produced using U...
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In this paper, we have designed an efficient parallel algorithm for performing 3 D image reconstruction. In our framework, we have considered 3 D image to be reconstructed from a series of 2 D images, produced using Ultrasonography, Computer Tomography, etc. the paper discusses a general parallel algorithm for 3 D image reconstruction over CRCW, CREW and EREW PRAM models. We have developed efficient implementations of this algorithm over a vector machines, a distributed system comprising of a cluster of Work Stations and various interconnection network like mesh network and reconfigurable bus network. the performance of the above algorithms are tested using simulation experiments performed for 3 D image reconstruction of the vitreous region of the eye using ophthalmic ultrasonograms. A novel approximation scheme has also been proposed for a drastic improvement in performance for specific kinds of image. Results indicate the time complexities of the algorithms are in resonance with expected theoretical values and image obtained has a uncompromising level of accuracy.
作者：
Ahr, DBäcker, AGMD
German Natl Res Ctr Informat Technol SCAI Inst Algorithms & Sci Comp St Augustin Germany
PC clusters running Windows NT have been investigated as a low-cost alternative to parallel computers. One important reason why NT clusters are not broadly accepted yet is the lack of powerful development environments...
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ISBN:
(纸本)3540664432
PC clusters running Windows NT have been investigated as a low-cost alternative to parallel computers. One important reason why NT clusters are not broadly accepted yet is the lack of powerful development environments, which are a crucial success factor for software development projects. this paper presents the new Windows NT version of TRAPPER, an integrated development and visualization environment for parallel systems. Emphasis is put on a new component called the project workspace tool. Project workspaces enable user-friendly interaction with all components and settings required for the development of a parallel application. they automate many repetitive tasks that are typical to parallel system development.
this paper describes a biologically motivated visual architecture for automatic target acquisition and tracking. the model, that is based on principal characteristics of the Human Visual System (HVS), was incorporated...
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ISBN:
(纸本)0819431923
this paper describes a biologically motivated visual architecture for automatic target acquisition and tracking. the model, that is based on principal characteristics of the Human Visual System (HVS), was incorporated into a prototype ATR testbed that performs multi-resolution target signature extraction at the sensor level. the extracted target features are then integrated into a consistent representation of the scene using a parallel attention model of the HVS. the described ATR solution integrates a number of innovations on target segmentation, camouflage elimination, 3D invariant target identification and intelligent tracking into a concise framework. the architecture is transparent to sensor technology. Simulation and experimental results are presented.
the proceedings contain 65 papers. the special focus in this conference is on Signal processing and CAD Tools for DRL. the topics include: Reconfigurable processors for high-performance, embedded digital signal proces...
ISBN:
(纸本)3540664572
the proceedings contain 65 papers. the special focus in this conference is on Signal processing and CAD Tools for DRL. the topics include: Reconfigurable processors for high-performance, embedded digital signal processing;a linear gammatone filterbank design for a model of the auditory system;a plug-in architecture for video processing;an interpretive simulation and visualization environment for dynamically reconfigurable systems;modelling and synthesis of configuration controllers for dynamically reconfigurable logic systems using the DCS CAD framework;optimal finite field multipliers for FPGAs;memory access optimization and RAM inference for pipeline vectorization;analysis and optimization of 3-D FPGA design parameters;ultra-fast placement for FPGAs;placement optimization based on global routing updating for system partitioning onto multi-FPGA mesh topologies;hierarchical interactive approach to partition large designs into FPGAs;logical-to-physical memory mapping for FPGAs with dual-port embedded arrays;a temporal floorplanning based CAD framework for dynamically reconfigurable logic systems;a bipartitioning algorithm for dynamic reconfigurable programmable logic;self controlling dynamic reconfiguration;an internet based development framework for reconfigurable computing;on tool integration in high-performance FPGA design flows;hardware-software codesign for dynamically reconfigurable architectures;serial hardware libraries for reconfigurable designs;reconfigurable computing in remote and harsh environments;communication synthesis for reconfigurable embedded systems and run-time parameterizable cores.
In this paper, we present the design of Pi (it), an ALDOR library to express parallel programs. ALDOR is a general purpose programming language designed for computer algebra and Pi (it) provides an ALDOR low-level int...
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ISBN:
(纸本)3540664432
In this paper, we present the design of Pi (it), an ALDOR library to express parallel programs. ALDOR is a general purpose programming language designed for computer algebra and Pi (it) provides an ALDOR low-level interface that interacts with hardware or system tools in order to express parallelism. Additionally, Pi (it) provides an API that hides any low-level details such as sending messages, creating threads and provides an interface for data parallelism. this paper presents our design decisions and our implementation as well as examples of how easy ALDOR programmers can implement parallelalgorithms in a high-level abstract way with Pi (it).
the paper discusses the possibilities of designing TV systems with adaptive parallel pre-processing of signals. the efficiency of the system is calculated in comparison with TV systems which have the "coarse"...
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the paper discusses the possibilities of designing TV systems with adaptive parallel pre-processing of signals. the efficiency of the system is calculated in comparison with TV systems which have the "coarse" structure of spectrum pre-emphasis.
In the solution of large-scale numerical problems, parallel computing is becoming simultaneously more important and more difficult. the complex organization of today9;s multi-processors with several memory hierarch...
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In the solution of large-scale numerical problems, parallel computing is becoming simultaneously more important and more difficult. the complex organization of today's multi-processors with several memory hierarchies has forced the scientific programmer to make a choice between simple but unscalable code and scalable but extremely complex code that does not port to other architectures. this paper describes how the SMARTS runtime system and the POOMA C++ class library for high-performance scientific computing work together to exploit data parallelism in scientific applications while hiding the details of managing parallelism and data locality from the user. We present innovative algorithms, based on the macro-dataflow model, for detecting data parallelism and efficiently executing data-parallel statements on shared-memory multiprocessors. We also describe how these algorithms can be implemented on clusters of SMPs.
the paper discusses architectures for MPEG-2 encoders capable of operating at High Level as required for the transmission of high-definition television. the computational requirements of such an encoder cannot be met ...
the paper discusses architectures for MPEG-2 encoders capable of operating at High Level as required for the transmission of high-definition television. the computational requirements of such an encoder cannot be met today by a single process; some degree of segmentation or parallelprocessing is required. — Some designs of high-definition encoder achieve this segmentation at a system level by dividing the high-definition image among a number of standard-definition encoders and subsequently combining the encoded datastreams. this approach offers simplicity of design and may appear to offer certain advantages to the user. — the paper discusses various aspects of the operation of encoders, including the coding of I-frames, the generation and coding of motion vectors, and bit allocation. It describes a number of problems withthis type of segmentation, and shows that optimal efficiency cannot be achieved. the paper further suggests that the apparent user benefits are difficult to realize, and concludes that a purpose-designed “full-frame” high-definition encoder provides a superior solution.
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