Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 30 of 52
Full-Text Articles in Entire DC Network
Evaluating Online Mathematics Resources: A Practical Approach For Teachers, Boris Handal, Parvan Handal, Anthony J. Herrington
Evaluating Online Mathematics Resources: A Practical Approach For Teachers, Boris Handal, Parvan Handal, Anthony J. Herrington
Faculty of Education - Papers (Archive)
Gradually Internet-based educational resources are making their way into the school mathematics curriculum (Handal & Herrington, 2003). Online resources are potentially useful compared to normal courseware because of their abundance, availability at no cost, platform-free accessibility, and their wide reaching accessibility. On the other hand, a major limitation of online resources is their lack of appropriate pedagogy, coupled with poor instructional design and layout. According to Alessi and Trollip (2001, p. 392), “The tendency for the Web to be used only for presentation of materials greatly restricts its instructional potential”.
Classsim: Preparing Tomorrows Teachers For Classroom Reality, Lisa K. Kervin, Brian Ferry, Lisa A. Carrington
Classsim: Preparing Tomorrows Teachers For Classroom Reality, Lisa K. Kervin, Brian Ferry, Lisa A. Carrington
Faculty of Education - Papers (Archive)
This paper reports on an on-line simulation that we have developed to support our pre-service teacher education program. The purpose of this paper is three fold: first it reports on the need identified within the literature for pre-service teacher education to make stronger connections between the theory of their university experience with classroom reality; second it reports on the creation of a prototype version of simulation software (ClassSim) developed to engage pre-service teachers in decision-making processes within a virtual classroom environment; third it reports on our research where the software was used with a cohort of 186 pre-service teachers.
From Surviving To Thriving: An Induction Program For Early Career Teachers Of Personal Development, Health And Physical Education, Gregg S. Rowland, Douglas Hearne, Ann Mccormack
From Surviving To Thriving: An Induction Program For Early Career Teachers Of Personal Development, Health And Physical Education, Gregg S. Rowland, Douglas Hearne, Ann Mccormack
Faculty of Education - Papers (Archive)
This paper is a discussion of a project with both face-to-face and online components designed to support early career teachers from the key learning area of Personal development.
A Technology-Enhanced Multiliteracies Learning Design For Geography Education, Lori Lockyer, Barry Harper
A Technology-Enhanced Multiliteracies Learning Design For Geography Education, Lori Lockyer, Barry Harper
Faculty of Education - Papers (Archive)
Educators are being challenged to prepare students to effectively participate in our increasingly globalised society. Contemporary views of pedagogy suggest supporting learners by providing scaffolds for their engagement in real world tasks - tasks that provide opportunities to both explore and apply their learning through multi-modal expressions' within their diverse contexts. This article describes a project that draws upon the emerging views of multiliteracies in the design of a K-12 education excursion program. The multiliteracies learning design developed for .the program is applied to specific discipline-focused learning objectives and implemented within a technology-enhanced environment, which provides learners with access to …
Authentic Conditions For Authentic Assessment: Aligning Task And Assessment, Janice A. Herrington, Anthony J. Herrington
Authentic Conditions For Authentic Assessment: Aligning Task And Assessment, Janice A. Herrington, Anthony J. Herrington
Faculty of Education - Papers (Archive)
Despite major discussion and consideration of authentic assessment through the 1990s, little progress appears to have been made towards its widespread adoption in higher education. Universities often serve to limit the use of authentic approaches in learning tasks and assessment, through restrictive policies. In this paper, we briefly review the literature and summarise the characteristic elements of authentic assessment, and argue that task, assessment and university policies must be aligned for truly effective use of authentic assessment to occur in higher education.
Assessing The Threat Of Maritime Terrorism: Issues For The Asia-Pacific Region, Sam Bateman
Assessing The Threat Of Maritime Terrorism: Issues For The Asia-Pacific Region, Sam Bateman
Faculty of Law - Papers (Archive)
This article provides a critical assessment of the contemporary threat of maritime terrorism in the Asia-Pacific region. It addresses the operational dimensions of the threat to ships and port infrastructure, and considers the effectiveness of the international and regional measures that have been introduced in recent years to deal with this threat. Based on a proposition that that there has been rather too much emphasis on highly remote and speculative “doomsday” scenarios, the article supports the need for balance and equity in addressing the risks of maritime terrorism. It identifies types of terrorist attack that might be assessed as more …
Overcoming Organisational Resistance To Using Wiki Technology For Knowledge Management, Charmaine C. Pfaff, Helen M. Hasan
Overcoming Organisational Resistance To Using Wiki Technology For Knowledge Management, Charmaine C. Pfaff, Helen M. Hasan
Faculty of Commerce - Papers (Archive)
Although Wikis emerged in the public domain more than a decade ago, a number of business organisations are now discovering the advantages of using Wiki technology to manage knowledge. However, there are many who are not convinced about the merits of this relatively new Wiki technology and are not yet prepared to risk its adoption because it exhibits many ideas that have yet to be tested and many issues that have yet to be resolved. This paper studies the merits of using a Wiki for knowledge management. While some cases of corporate adoption of Wiki technology have been reported, cases …
Students' Preference For Teaching Strategies That Strengthen The Learning Of Economics In Middle Eastern Universities, Mokhtar M. Metwally, Nelson Perera
Students' Preference For Teaching Strategies That Strengthen The Learning Of Economics In Middle Eastern Universities, Mokhtar M. Metwally, Nelson Perera
Faculty of Commerce - Papers (Archive)
A survey, covering a random sample of 139 students, was conducted at the University of Wollongong in Dubai during the months of September-November 2004, to gather opinions of students about their attitudes towards strategies that promote the teaching and learning of economics The technique of factor analysis was used to model the preference of students for various strategies. Multiple discriminant analysis was used to find out whether there are any significant differences in the attitudes of students at different stages :"students learning introductory economic subjects", "students learning intermediate economic subjects" and "students learning advanced and applied economic subjects" Factor scores …
Force Distribution For Double-Walled Carbon Nanotubes, Duangkamon Baowan, James M. Hill
Force Distribution For Double-Walled Carbon Nanotubes, Duangkamon Baowan, James M. Hill
Faculty of Informatics - Papers (Archive)
Advances in technology have led to the creation of many nano-scale devices and carbon nanotubes are representative materials to construct these devices. Double-walled carbon nanotubes with the inner tube oscillating can be used as gigahertz oscillators and form the basis of possible nano-electronic devices. Such gigahertz oscillating devices made from carbon nanotubes might be instrumental in the micro-computer industry, which is predominantly based on electron transport phenomena. There are many experiments and molecular dynamics simulations which show that a wave is generated on the outer cylinder by the oscillation of the carbon nanotubes and that the frequency of this wave …
Arbitrary Ratio Sample Rate Conversion Using B-Spline Interpolation For Software Defined Radio, Xiaojing Huang
Arbitrary Ratio Sample Rate Conversion Using B-Spline Interpolation For Software Defined Radio, Xiaojing Huang
Faculty of Informatics - Papers (Archive)
Arbitrary ratio sampling rate conversion (SRC) structure using B-spline interpolation is proposed for software defined radio (SDR) in this paper. By combining SRC with SDR’s transmitter/receiver filter, the constraint on SRC reconstruction filter can be relaxed, and an overall computational reduction can be achieved. The mixed-width B-spline is introduced so that both antiimaging and anti-aliasing requirements for SRC are satisfied. The passband droop introduced by the B-spline interpolation is compensated by a linear phase digital filter incorporated in the SRC structure so that the overall frequency response approaches the desired frequency response of the SDR’s transmitter/receiver filter. To make the …
Facial Expression Recognition For Multiplayer Online Games, Ce Zhan, Wanqing Li, Philip O. Ogunbona, Farzad Safaei
Facial Expression Recognition For Multiplayer Online Games, Ce Zhan, Wanqing Li, Philip O. Ogunbona, Farzad Safaei
Faculty of Informatics - Papers (Archive)
The Multiplayer Online Game (MOG) becomes more popular than any other types of computer games for its collaboration, communication and interaction ability. However, compared with the ordinary human communication, the MOG still has many limitations, especially in communication using facial expressions. Although detailed facial animation has already been achieved in a number of MOGs, players have to use text commands to control avatars expressions. In this paper, we briefly review the state of the art in facial expression recognition and propose an automatic expression recognition system that can be integrated into a MOG to control the avatar’s facial expressions. We …
An Ontology-Based Approach For Expert And Knowledge Mining In Complex Multi-Agent Systems, Minjie Zhang, Xijin Tang, Quan Bai, Jifa Gu
An Ontology-Based Approach For Expert And Knowledge Mining In Complex Multi-Agent Systems, Minjie Zhang, Xijin Tang, Quan Bai, Jifa Gu
Faculty of Informatics - Papers (Archive)
Complex problems require diverse expertise and multiple techniques to solve. In order to solve such problems, complex multi-agent systems include numbers of heterogeneous agents, which may include both of human experts and autonomous agents, to work together toward some complex problems. Most complex multi-agent systems are working in open domains. Due to heterogeneities and dynamic working environments, expertise and capabilities of agents might not be well estimated and presented in the system. Therefore, how to discover useful knowledge from human and autonomous experts, make more accurate estimation for experts' capabilities and to find out suitable expert(s) to solve incoming problems …
Generic Scheduling Framework And Algorithm For Time-Varying Wireless Networks, Gengfa Fang, Yi Sun, Jihua Zhou, Jinglin Shi, Eryk Dutkiewicz
Generic Scheduling Framework And Algorithm For Time-Varying Wireless Networks, Gengfa Fang, Yi Sun, Jihua Zhou, Jinglin Shi, Eryk Dutkiewicz
Faculty of Informatics - Papers (Archive)
In this paper, the problem of scheduling multiple users sharing a time varying wireless channel is studied, in networks such as in 3G CDMA and IEEE 802.16. We propose a new generic wireless packet scheduling framework (WPSF), which takes into account not only the quality of service (QoS) requirements but also the wireless resource consumed. The framework is generic in the sense that it can be used with different resource constraints and QoS requirements depending on the traffic flow types. Subsequently, based on this framework a minimum rate and channel aware (MRCA) scheduling algorithm is presented. MRCA attempts to greedily …
Sava: A Novel Self-Adaptive Vertical Handoff Algorithm For Heterogeous Wireless Networks, Min Liu, Zhong-Cheng Li, Xiao-Bing Guo, Eryk Dutkiewicz, Ming-Hui Wang
Sava: A Novel Self-Adaptive Vertical Handoff Algorithm For Heterogeous Wireless Networks, Min Liu, Zhong-Cheng Li, Xiao-Bing Guo, Eryk Dutkiewicz, Ming-Hui Wang
Faculty of Informatics - Papers (Archive)
The next generation wireless networking (4G) is envisioned as a convergence of different wireless access technologies with diverse levels of performance. Vertical handoff (VHO) is the basic requirement for convergence of different access technologies and has received tremendous attention from the academia and industry all over the world. During the VHO procedure, handoff decision is the most important step that affects the normal working of communication. In this paper, we propose a novel vertical handoff decision algorithm, self- adaptive VHO algorithm (SAVA), and compare its performance with conventional algorithms. SAVA synthetically considers the long term movement region and short term …
Mathematical Modelling For A C60 Carbon Nanotube Oscillator, Barry J. Cox, Ngamta Thamwattana, James M. Hill
Mathematical Modelling For A C60 Carbon Nanotube Oscillator, Barry J. Cox, Ngamta Thamwattana, James M. Hill
Faculty of Informatics - Papers (Archive)
The discovery of fullerenes C60 and carbon nanotubes has created an enormous impact on nanotechnology. Because of their unique mechanical and electronic properties, such as low weight, high strength, flexibility and thermal stability, fullerenes C60 and carbon nanotubes are of considerable interest to researchers from many scientific areas. One problem that has attracted much attention is the creation of gigahertz oscillators. While there are difficulties for micromechanical oscillators, or resonators, to reach a frequency in the gigahertz range, it is possible for nanomechanical systems to achieve this. A number of studies have found that the sliding of the …
A System For The 3d Reconstruction Of The Human Face Using The Structured Light Approach, Dean Mcguire, Prashan Premaratne
A System For The 3d Reconstruction Of The Human Face Using The Structured Light Approach, Dean Mcguire, Prashan Premaratne
Faculty of Informatics - Papers (Archive)
This paper will describe a computer vision system under development with the aim of use in robust facial recognition applications. The system employs the structured light approach to solve the correspondence problem. The system has been designed with ease of use in mind with calibration procedures designed to be simple enough to be carried out without the use of precision measuring equipment, but robust enough to provide good quality 3D reconstructions. The hardware in use is of consumer grade and is being used in an unmodified form. Early reconstructions of faces based on the projection of a striped pattern have …
Wfms-Based Data Integration For E-Learning, Jianming Yong, Jun Yan, Xiaodi Huang
Wfms-Based Data Integration For E-Learning, Jianming Yong, Jun Yan, Xiaodi Huang
Faculty of Informatics - Papers (Archive)
As more and more organisations and institutions are moving towards the e-learning strategy, more and more disparate data are distributed by different e-learning systems. How to effectively use this vast amount of distributed data becomes a big challenge. This paper addresses this challenge and works out a new mechanism to implement data integration for e-learning. A workflow management system based (WFMS-based) data integration model is contributed to the e-learning.
Supportive-Expressive Psychotherapy For Cannabis Dependence, Brin F. Grenyer, Nadia Solowij
Supportive-Expressive Psychotherapy For Cannabis Dependence, Brin F. Grenyer, Nadia Solowij
Faculty of Health and Behavioural Sciences - Papers (Archive)
Supportive–expressive (SE) dynamic psychotherapy forms one variation of a number of psychotherapies that emphasize the importance of effective interpersonal relationships for psychological health (Grenyer, 2002a). The overall goal of SE psychotherapy is to help the client achieve mastery over their difficulties, gain self-understanding, and practice self-control over habitual drug use and related problems. From this framework, cannabis dependence is understood within the context of the client's interpersonal relationships, work, and social problems. The theory behind the SE approach emphasizes the formative influence of life experiences on the development of personality and on the genesis of problems, including habitual cannabis use. …
Do We Encourage Health Or Illness? A Survey Of Exercise Rehabilitation Practices For Patients In Australian Renal Units, Y. White, B. Grenyer
Do We Encourage Health Or Illness? A Survey Of Exercise Rehabilitation Practices For Patients In Australian Renal Units, Y. White, B. Grenyer
Faculty of Health and Behavioural Sciences - Papers (Archive)
Background: People with end stage renal disease (ESRD) have been reported as having low levels of physical activity. Sedentary behaviours increase illness risks which may lead to burdens on the public health system which include costs of medical care. Research has established that exercise is reported to improve general health and wellbeing. Benefits include better aerobic tolerance, maintenance and improvement in physical function and capacity, and improvement in self-concept and well-being. These same improvements also occur in an exercising ESRD population, even though the improvements might be of less magnitude. Renal unit staff can have a major impact on patients …
Spatial Indexing For Scalability In Fca, Benjamin Martin, Peter W. Eklund
Spatial Indexing For Scalability In Fca, Benjamin Martin, Peter W. Eklund
Faculty of Health and Behavioural Sciences - Papers (Archive)
The paper provides evidence that spatial indexing structures offer faster resolution of Formal Concept Analysis queries than B-Tree/Hash methods. We show that many Formal Concept Analysis operations, computing the contingent and extent sizes as well as listing the matching objects, enjoy improved performance with the use of spatial indexing structures such as the RD-Tree. Speed improvements can vary up to eighty times faster depending on the data and query. The motivation for our study is the application of Formal Concept Analysis to Semantic File Systems. In such applications millions of formal objects must be dealt with. It has been found …
Q-Methodology For The Active Process Of Knowledge Management, Joseph A. Meloche, Helen M. Hasan, Michelle Mok
Q-Methodology For The Active Process Of Knowledge Management, Joseph A. Meloche, Helen M. Hasan, Michelle Mok
Faculty of Commerce - Papers (Archive)
Knowledge Managament for the provision of Health Information Services is a developing field and one that is usefully informed by applied research. The current study is conducted with Intensive Care Unit (ICU) professionals to capture and distil their views in regard to a developing a Web-Based Information Service. This service is provided by a central coordination and monitoring unit for intensive care units across NSW, Australia. The study is part of a larger research initiative that is being done to advance the provision of health information in ICU's across the state. Given the complex and dynamic context of ICUs, there …
An Interactive Learning Environment For Teaching Statistics, Trevor Spedding, Xuesong Chi
An Interactive Learning Environment For Teaching Statistics, Trevor Spedding, Xuesong Chi
Faculty of Commerce - Papers (Archive)
This paper outlines the development and use of a web based virtual factory simulator for teaching industrial statistics and process improvement techniques. Students can manage the factory for either a period of one month, or the length specified by lecturers, with the factory running in real time. The main objective is to reduce quality problems and continuously improve the quality over a substantial period of time. Techniques such as control charts, process capability, experimental design and response surface methodology and their underlying statistics are explored. This immersive simulation creates a problem-based learning approach with relevant academic underpinning. It provides the …
Testing For Structural Breaks In The Korean Economy 1980-2005: An Application Of The Innovational Outlier And Additive Outlier Models, Charles Harvie, Mosayeb Pahlavani
Testing For Structural Breaks In The Korean Economy 1980-2005: An Application Of The Innovational Outlier And Additive Outlier Models, Charles Harvie, Mosayeb Pahlavani
Faculty of Commerce - Papers (Archive)
This paper employs quarterly time series data to endogenously determine the timing of structural breaks for various macroeconomic variables in the Korean economy. The Innovational Outlier (IO) as well as Additive Outlier models (Perron, 1997) are then used to test for non-stationarity of the Korean macroeconomic data. After accounting for the single most significant structural break the results from the (AO) model clearly indicate that the null o f a unit root cannot be rejected for all of the series under investigation. This finding is consistent with our finding based on the conventional unit root test. However, by applying the …
Orbophone: A New Interface For Radiating Sound And Image, Damien Lock, Gregory M. Schiemer
Orbophone: A New Interface For Radiating Sound And Image, Damien Lock, Gregory M. Schiemer
Faculty of Creative Arts - Papers (Archive)
The Orbophone is a new interface that radiates rather than projects sound and image. It provides a cohesive platform for audio and visual presentation in situations where both media are transmitted from the same location and localization in both media is perceptually correlated. This paper discusses the advantages of radiation over conventional sound and image projection for certain kinds of interactive public multimedia exhibits and describes the artistic motivation for its development against a historical backdrop of sound systems used in public spaces. One exhibit using the Orbophone is described in detail together with description and critique of the prototype, …
Sampling Patchily Distributed Taxa: A Case Study Using Cost-Benefit Analyses For Sponges And Ascidians In Coastal Lakes Of New South Wales, Australia, P. B. Barnes, A. R. Davis, D. E. Roberts
Sampling Patchily Distributed Taxa: A Case Study Using Cost-Benefit Analyses For Sponges And Ascidians In Coastal Lakes Of New South Wales, Australia, P. B. Barnes, A. R. Davis, D. E. Roberts
Faculty of Science - Papers (Archive)
Estuaries worldwide are under increasing threat from human impacts. Because much of their fauna remains unstudied and in many cases undescribed, these systems present real challenges for effective management. In eastern Australia the study of estuarine fauna is often further complicated by its patchy distributions. This is particularly the case for assemblages of sessile invertebrates in coastal saline lakes. This study quantified distributions of sponges and ascidians at a hierarchy of spatial scales in the seagrass meadows of 2 coastal saline lakes in New South Wales, Australia. Nine species of sponge, many of which were undescribed, and 3 species of …
Targeting C-Reactive Protein For The Treatment Of Cardiovascular Disease, Mark B. Pepys, Gideon M. Hirschfield, Glenys A. Tennent, J Ruth Gallimore, Melvyn C. Kahan, Vittorio Bellotti, Philip N. Hawkins, Rebecca M. Myers, Martin D. Smith, Alessandra Polara, Alexander J. A Cobb, Steven V. Ley, J. Andrew Aquilina, Carol V. Robinson, Isam Sharif, Gillian A. Gray, Caroline A. Sabin, Michelle C. Jenvey, Simon E. Kolstoe, Darren Thompson, Stephen P. Wood
Targeting C-Reactive Protein For The Treatment Of Cardiovascular Disease, Mark B. Pepys, Gideon M. Hirschfield, Glenys A. Tennent, J Ruth Gallimore, Melvyn C. Kahan, Vittorio Bellotti, Philip N. Hawkins, Rebecca M. Myers, Martin D. Smith, Alessandra Polara, Alexander J. A Cobb, Steven V. Ley, J. Andrew Aquilina, Carol V. Robinson, Isam Sharif, Gillian A. Gray, Caroline A. Sabin, Michelle C. Jenvey, Simon E. Kolstoe, Darren Thompson, Stephen P. Wood
Faculty of Science - Papers (Archive)
Complement-mediated inflammation exacerbates the tissue injury of ischaemic necrosis in heart attacks and strokes, the most common causes of death in developed countries. Large infarct size increases immediate morbidity and mortality and, in survivors of the acute event, larger non-functional scars adversely affect long-term prognosis. There is thus an important unmet medical need for new cardioprotective and neuroprotective treatments. We have previously shown that human C-reactive protein (CRP), the classical acute-phase protein that binds to ligands exposed in damaged tissue and then activates complement1, increases myocardial and cerebral infarct size in rats subjected to coronary or cerebral artery ligation, respectively2,3. …
Carbon Nanotubes: Enhancing The Polymer Building Blocks For Intelligent Materials, Marc In Het Panhuis
Carbon Nanotubes: Enhancing The Polymer Building Blocks For Intelligent Materials, Marc In Het Panhuis
Faculty of Science - Papers (Archive)
Electroactive polymers can be engineered at the molecular level to recognise external stimuli, they are conductive and they are capable of localised processing. These are properties which make them ideal building blocks for intelligent materials. This article investigates the suitability of carbon nanotubes of enhancing (polymer) building blocks for intelligent materials.
Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, J F. Muller, T Blumenstock, Nicholas B. Jones, David W. Griffith, C P Rinsland, E Mahieu, S Wood, R De Beek, P Demoulin, M Buchwitz, P Duchatelet, C Frankenberg, A Gloudemans, T Kerzenmacher, I Kramer, J Mellqvist, H Shrijver, A Strandberg, D Smale, W Stremme, A G. Straume, R Sussmann, M Van Den Broek, T Wagner, K Strong, Aldona Wiacek, J R. Taylor, Hans Fast, Thorsten Warneke, Richard L. Mittermeier, Justus Notholt, Voltaire A. Velazco
Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, J F. Muller, T Blumenstock, Nicholas B. Jones, David W. Griffith, C P Rinsland, E Mahieu, S Wood, R De Beek, P Demoulin, M Buchwitz, P Duchatelet, C Frankenberg, A Gloudemans, T Kerzenmacher, I Kramer, J Mellqvist, H Shrijver, A Strandberg, D Smale, W Stremme, A G. Straume, R Sussmann, M Van Den Broek, T Wagner, K Strong, Aldona Wiacek, J R. Taylor, Hans Fast, Thorsten Warneke, Richard L. Mittermeier, Justus Notholt, Voltaire A. Velazco
Faculty of Science - Papers (Archive)
Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-transform infrared (FTIR) spectrometers. The SCIAMACHY data considered here have been produced by three different retrieval algorithms, WFM-DOAS (version 0.5 for CO and CH4 and version 0.4 for CO2 and N2O), IMAP-DOAS (version 1.1 and 0.9 (for CO)) and IMLM (version 6.3) and cover the January to December 2003 time period. Comparisons have been made for individual data, as well as for monthly averages. To maximize the number of reliable coincidences …
Detection Of Moisture Stress In Eucalyptus Camaldulensis Using Leaf-Level Spectral Reflectance: Implications For Remote Sensing, Laurie A. Chisholm
Detection Of Moisture Stress In Eucalyptus Camaldulensis Using Leaf-Level Spectral Reflectance: Implications For Remote Sensing, Laurie A. Chisholm
Faculty of Science - Papers (Archive)
Foliage moisture stress may be detectable by remote sensing using high resolution spectral data, but meaningful diagnosis requires that plant water status be assessed on the ground under controlled conditions. Design parameters of an experimental plantation of E. camaldulensis (River red gum), were used to examine tree-level responses to moisture stress, as measured by xylem water potential, and relationships to physiological parameters including spectral reflectance, chlorophyll flurescence, and cholorphyll across a range of stress categories.
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 …