1,179 research outputs found
A general framework for efficient FPGA implementation of matrix product
Original article can be found at: http://www.medjcn.com/ Copyright Softmotor LimitedHigh performance systems are required by the developers for fast processing of computationally intensive applications. Reconfigurable hardware devices in the form of Filed-Programmable Gate Arrays (FPGAs) have been proposed as viable system building blocks in the construction of high performance systems at an economical price. Given the importance and the use of matrix algorithms in scientific computing applications, they seem ideal candidates to harness and exploit the advantages offered by FPGAs. In this paper, a system for matrix algorithm cores generation is described. The system provides a catalog of efficient user-customizable cores, designed for FPGA implementation, ranging in three different matrix algorithm categories: (i) matrix operations, (ii) matrix transforms and (iii) matrix decomposition. The generated core can be either a general purpose or a specific application core. The methodology used in the design and implementation of two specific image processing application cores is presented. The first core is a fully pipelined matrix multiplier for colour space conversion based on distributed arithmetic principles while the second one is a parallel floating-point matrix multiplier designed for 3D affine transformations.Peer reviewe
An employer demand intelligence framework
Employer demand intelligence is crucial to ensure accurate and reliable education, workforce and immigration related decisions are made. To date, current methods have been manually intensive and expensive â providing insufficient scope of information required to address such important economic implications. This research developed an Employer Demand Intelligence Framework (EDIF) to address detailed employer demand intelligence requirements. To further the EDIFâs functionality, a semi-automated Employer Demand Identification Tool (EDIT) was developed that continuously provide such intelligence
A reference architecture for flexibly integrating machine vision within manufacturing
A reference architecture provides an overall framework that may embrace models, methodologies and
mechanisms which can support the lifecycle of their target domain. The work described in this thesis
makes a contribution to establishing such a generally applicable reference architecture for supporting
the lifecycIe of a new generation of integrated machine vision systems.
Contemporary machine vision systems consist of a complex combination of mechanical engineering,
the hardware and software of an electronic processor, plus optical, sensory and lighting components.
"This thesis is concerned with the structure of the software which characterises the system application.
The machine vision systems which are currently used within manufacturing industry are difficult to
integrate within the information systems required within modem manufacturing enterprises. They are
inflexible in all but the execution of a range of similar operations, and their design and implementation
is often such that they are difficult to update in the face of the required change inherent within modem
manufacturing.
The proposed reference architecture provides an overall framework within which a number of supporting
models, design methodologies, and implementation mechanisms can combine to provide support
for the rapid creation and maintenance of highly structured machine vision applications. These applications
comprise modules which can be considered as building blocks of CIM systems. Their integrated
interoperation can be enabled by the emerging infrastructural tools which will be required to underpin
the next generation of flexibly integrated manufacturing systems.
The work described in this thesis concludes that the issues of machine vision applications and the
issues of integration of these applications within manufacturing systems are entirely separate. This separation
is reflected in the structure of the thesis. PART B details vision application issues while PAIIT C
deals with integration. The criteria for next generation integrated machine vision systems, derived in
PART A of the thesis, are extensive. In order to address these criteria and propose a complete architecture,
a "thin slice" is taken through the areas of vision application, and integration at the lifecycle
stages of design, implementation, runtime and maintenance.
The thesis describes the reference architecture, demonstrates its use though a proof of concept implementation
and evaluates the support offered by the architecture for easing the problems of software change
Mismatch distance term compensation in centroid configurations with nonzero-area devices
This paper presents an analytical approach to distance term compensation in mismatch models of integrated devices. Firstly, the conditions that minimize parameter mismatch are examined under the assumption of zero-area devices. The analytical developments are illustrated using centroid configurations. Then, deviations from the previous approach due to the nonzero device areas are studied and evaluated
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