The paper presents an interactive segmentation system that uses a parallelprocessing architecture. Poor contrasts, variable tissue properties and complex-shaped structures make the isolation of meaningful regions of ...
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The paper presents an interactive segmentation system that uses a parallelprocessing architecture. Poor contrasts, variable tissue properties and complex-shaped structures make the isolation of meaningful regions of interest difficult. The interactive approach uses the human user's knowledge base to assist in image segmentation. The measurement of regions of interest enable the resultant output image to be quantified for clinical purposes. The graphical user interface - developed under Microsoft Windows - incorporates a mouse driven interactive display. A transputer based parallelprocessing engine is provided for the computationally intensive tasks of the system. These modules of the system communicate with each other using the Windows Dynamic Data Exchange (DDE) model.
The paper presents an interactive segmentation system that uses a parallelprocessing architecture. Poor contrasts, variable tissue properties and complex-shaped structures make the isolation of meaningful regions of ...
The paper presents an interactive segmentation system that uses a parallelprocessing architecture. Poor contrasts, variable tissue properties and complex-shaped structures make the isolation of meaningful regions of interest difficult. The interactive approach uses the human user's knowledge base to assist in image segmentation. The measurement of regions of interest enable the resultant output image to be quantified for clinical purposes. The graphical user interface-developed under Microsoft Windows-incorporates a mouse driven interactive display. A transputer based parallelprocessing engine is provided for the computationally intensive tasks of the system. These modules of the system communicate with each other using the Windows Dynamic Data Exchange (DDE) model.
The nature of several algorithms from the active vibration control domain is discussed and the issues of algorithm parallelisation and mapping are introduced. The algorithms have been implemented on the network of C40...
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The nature of several algorithms from the active vibration control domain is discussed and the issues of algorithm parallelisation and mapping are introduced. The algorithms have been implemented on the network of C40s and the real-time performance evaluated. In all the cases, a single C40 has shown enough processing power for the real-time implementation of the algorithms. Multiprocessor implementation did not offer very impressive performances as compared to ideal speedup, due to communication overhead, run-time memory management and some other unpredictable features of the architecture. However, the obtained real time performances of the uni-processor and the multi-processor architectures are quite reasonable.< >
This paper describes a fully decentralized, transputer-based architecture for data fusion problems. This architecture takes the form of a network of sensor nodes, each with its own processing facility, which together ...
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This paper describes a fully decentralized, transputer-based architecture for data fusion problems. This architecture takes the form of a network of sensor nodes, each with its own processing facility, which together do not require any central processor or any central communication facility. In this architecture, computation is performed locally and communication occurs between any two nodes. Such an architecture has many desirable properties including robustness to sensors failure, and flexibility to the addition or loss of one or more sensors. We first describe the decentralized data fusion algorithm and some of its consequences. We then describe a number of implementations of this algorithm: on a vision-based surveillance network, on a large process control rig comprising some 150 sensors, and on a modular mobile robot.< >
The proceedings contains 10 papers. Some of the specific topics discussed are: animation using accelerated ray tracing on a hypercube;SPARC-GAP- a parallel genetic algorithm processing;a transputer based parallel DSP ...
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The proceedings contains 10 papers. Some of the specific topics discussed are: animation using accelerated ray tracing on a hypercube;SPARC-GAP- a parallel genetic algorithm processing;a transputer based parallel DSP (digital signal processing) environment;and parallel architecture for real-time control.
A parallel color image processing system for grading fresh agricultural products is described in this paper. The system uses a transputer array to process data at a rate of 80 objects per second. It is also provided w...
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A parallel color image processing system for grading fresh agricultural products is described in this paper. The system uses a transputer array to process data at a rate of 80 objects per second. It is also provided with debug buffer which allows uninterrupted systems operation. Some of the system's other features are a data magazine module, a chaincoder module, a task allocation module and a postal service module.
A distributed computer containing DSP devices as the computational elements is presented. The computer is based on multiple processor modules (TM5320CXX series), interconnected via a time division multiplexed transput...
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A distributed computer containing DSP devices as the computational elements is presented. The computer is based on multiple processor modules (TM5320CXX series), interconnected via a time division multiplexed transputer link channel to a central control unit. Some simulation performance results for the communication mechanism are also presented.< >
The problem of controlling any complex process by its very nature requires a parallel solution for the control system. A transputer based architecture is compatible thus allowing a logical solution to the problem. Fur...
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The problem of controlling any complex process by its very nature requires a parallel solution for the control system. A transputer based architecture is compatible thus allowing a logical solution to the problem. Furthermore with the increased demands being placed on control systems a parallel process control solution is becoming more attractive. The authors demonstrate the parallel computer control of a batch distillation rig, using an array of transputers, and show the advantages and disadvantages of such a scheme against a realtime multitasking control system. The transputer network consists of a host T800 transputer, mounted in a PC, connected to a system of 11 other T800 transputers. The network transputers are able to communicate with the rig via special interface cards. The code on all the transputers is written in the Occam programming language.< >
Adaptability and high performance are prerequisites for cost-effective automatic industrial inspection and other product handling systems. The specification of appropriate systems therefore demands the development bot...
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Adaptability and high performance are prerequisites for cost-effective automatic industrial inspection and other product handling systems. The specification of appropriate systems therefore demands the development both of high performance algorithms and efficient techniques for implementation, together with a means of matching algorithms and implementational infrastructure. transputer arrays offer a potentially very effective infrastructure for the implementation of pattern classification algorithms, which often embody inherent parallelism in their structure. The paper investigates ways in which a number of classification algorithms, particularly those directly optimised for the processing of binary images and applicable to automatic inspection tasks, can be mapped to an array of transputers to provide a real-time environment for classification processing. It is shown how the parallel implementation of a multilevel hierarchical architecture can offer significant benefits in defining the relationship between computational complexity (and therefore attainable processing speeds) and error rate performance.< >
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