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Full-Text Articles in Engineering
Discrete Cosine Transform Based Shift Estimation For Fringe Pattern Profilometry Using Generalized Analysis Model, Jose F. Chicharo, Jiangtao Xi, Yingsong Hu, Zongkai Yang, Enbang Li
Discrete Cosine Transform Based Shift Estimation For Fringe Pattern Profilometry Using Generalized Analysis Model, Jose F. Chicharo, Jiangtao Xi, Yingsong Hu, Zongkai Yang, Enbang Li
Faculty of Engineering - Papers (Archive)
This paper presents a new analysis algorithm to carry out profile measure- ment with low computational complexity and less noise-sensitivity. Firstly, a discrete cosine transform (DCT) based representation method is introduced to express the height distribution of the three-dimensional surface. Then, a novel shift estimation algorithm, called DCT based shift estimation (DCT-SE) is presented to reconstruct three-dimensional object surfaces by using the proposed expression and the generalized analysis model. The advantage of DCT-SE is that without loss of measurement precise it provides lower computational complexity to implement three-dimensional reconstruction from distorted fringe patterns and at the same time survives from …
Classification And Statistical Analysis Of Skin Cancer Terahertz Spectra, Matthew J. Berryman, T J. Rainsford, D Abbott
Classification And Statistical Analysis Of Skin Cancer Terahertz Spectra, Matthew J. Berryman, T J. Rainsford, D Abbott
Faculty of Engineering - Papers (Archive)
We are developing computational, statistical pattern recognition tools that allow for the separation of various THz spectral data obtained from normal, pre-cancerous and cancerous tissue.
General Methodology For Analysis And Modeling Of Trust Relationships In Distributed Computing, Weiliang Zhao, Vijay Varadharajan, George Bryan
General Methodology For Analysis And Modeling Of Trust Relationships In Distributed Computing, Weiliang Zhao, Vijay Varadharajan, George Bryan
Faculty of Engineering - Papers (Archive)
In this paper, we discuss a general methodology for analysis and modeling of trust relationships in distributed computing. We discuss the classification of trust relationships, categorize trust relationships into two layers and provide a hierarchy of trust relationships based on a formal definition of trust relationship. We provide guidelines for the analysis and modeling of trust relationships. We review operations on trust relationships and relative types of trust relationships in our previous work. We provide a set of definitions for the properties of direction and symmetry of trust relationships. In order to analyze and model the scope and diversity of …
Cfd Analysis Of Impinging Axisymmetric Turbulent Fountains, Ajit R. Godbole, Paul Cooper, John Norrish, Gary R Hunt
Cfd Analysis Of Impinging Axisymmetric Turbulent Fountains, Ajit R. Godbole, Paul Cooper, John Norrish, Gary R Hunt
Faculty of Engineering - Papers (Archive)
No abstract provided.
Assessment Of Spatial Analysis Techniques For Estimating Impervious Cover, Steven Roso, Michael J. Boyd, Laurie A. Chisholm
Assessment Of Spatial Analysis Techniques For Estimating Impervious Cover, Steven Roso, Michael J. Boyd, Laurie A. Chisholm
Faculty of Engineering - Papers (Archive)
Impervious cover proportion is recognised as an important parameter in hydrologic modelling. Recent advances in the spatial sciences provide new capabilities for estimation of this value. This paper describes an assessment of seven estimation techniques, including human and computer based methods requiring a range of different input data and skill levels. In order to quantify the value of any gain in accuracy, the results from each method were applied to a real catchment using event based (WBNM) and continuous simulation (MUSIC) hydrologic models. The results showed that use of high resolution satellite imagery enabled the most accurate measurements of impervious …