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Articles 1 - 30 of 43
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Spectral Adaptation: A Reason To Use The Wavenumber Scale, Mark D. Fairchild
Spectral Adaptation: A Reason To Use The Wavenumber Scale, Mark D. Fairchild
Presentations and other scholarship
Chromatic adaptation refers to the ability of the human visual system to adjust to the color of the illumination, or other prevailing stimuli, such that perceived object colors vary far less with changes in illumination than would be expected from simple radiometry or colorimetry. Models of chromatic adaptation are generally formulated as extensions of the von Kries hypothesis of some sort of independent gain control mechanisms operating on the three types of cone signals. This paper introduces a new way to model the phenomenon with no requirement for the first stage chromatic processing. This model is referred to as a …
A Nexus Of Education, Inspiration, Research And Play, Andrew Phelps
A Nexus Of Education, Inspiration, Research And Play, Andrew Phelps
Presentations and other scholarship
No abstract provided.
Effect Of Nanostructure On The Thermal Oxidation Of Atomized Iron, Mohit Kumar, Naveen Rawat, Ksv Santhanam
Effect Of Nanostructure On The Thermal Oxidation Of Atomized Iron, Mohit Kumar, Naveen Rawat, Ksv Santhanam
Presentations and other scholarship
The effect of nanostructure on the thermal oxidation of atomized iron has been investigated. Above 500oC atomized iron is oxidized in the presence of air. However, when iron is compacted with multiwalled carbon nanotubes (MWCNT) this oxidation is shifted by more than 100oC. Iron is protected by the nanostructure environment A large number of compositions of atomic ratios of iron and MWCNT have been examined in this study to understand the effect in detail. The effect of nanostructure in the thermal oxidation of iron is interpreted as due to iron atom experiencing extensive overlap and confinement effect causing spin transfer. …
Evaluating Threat Assessment For Multi-Stage Cyber Attacks, Shanchieh Jay Yang, Jared Holsopple, Moises Sudit
Evaluating Threat Assessment For Multi-Stage Cyber Attacks, Shanchieh Jay Yang, Jared Holsopple, Moises Sudit
Presentations and other scholarship
Current practices to defend against cyber attacks are typically reactive yet passive. Recent research work has been proposed to proactively predict hacker's target entities in the early stage of the attack. With prediction, there comes false alarms and missed attacks. Very little has been reported on how to evaluate a threat assessment algorithm, especially for cyber security. Because of the variety and the constantly changing nature of hacker behavior and network vulnerabilities, a cyber threat assessment algorithm is, perhaps more susceptible that for other application domains. This work sets forth the issues on evaluating cyber threat assessment algorithms, and discusses …
Exploring The Career And Family Orientations Of Entrepreneurs: The Impact Of Gender And Dependent Status, Richard Demartino, Robert Barbato, Paul H. Jacques
Exploring The Career And Family Orientations Of Entrepreneurs: The Impact Of Gender And Dependent Status, Richard Demartino, Robert Barbato, Paul H. Jacques
Presentations and other scholarship
This study explores the career/achievement and family orientations of entrepreneurs - specifically the impact of sex and dependent child status. While a growing body of research has explored the similarities and uniqueness of women, none have explicitly analyzed entrepreneurs employing a career/achievement and family framework. Additionally, no studies have sought to explore the career/achievement and family orientations of female entrepreneurs with female non-entrepreneurs of similar backgrounds. Consequently, this research explores and compares the career/achievement and family orientations of female entrepreneurs with a group of female non-entrepreneurs with similar educational levels, ages, and work experience. It also compares the orientations of …
Using Hdr Display Technology And Color Appearance Modeling To Create Display Color Gamuts That Exceed The Spectrum Locus, Rodney Heckaman, Mark Fairchild
Using Hdr Display Technology And Color Appearance Modeling To Create Display Color Gamuts That Exceed The Spectrum Locus, Rodney Heckaman, Mark Fairchild
Presentations and other scholarship
No abstract provided.
Service-Oriented Architecture: Technology Selection And Strategic It Management, Brian Payne, James Baroody
Service-Oriented Architecture: Technology Selection And Strategic It Management, Brian Payne, James Baroody
Presentations and other scholarship
This paper examines the strategic decision making process of managing IT infrastructures. In particular, this paper proposes a methodology that can be employed in making a company's decision to implement a Service Oriented Architecture (SOA). SOA forces us, for the first time, to analyze and truly examine our IT operations through business--not technical--perspectives (DATZ, 2004). Accordingly, the decision to embrace or not to embrace SOA and in what capacity, combines quantitative and qualitative factors from both business and technical perspectives. Therefore, it is not possible to provide a purely objective measure by which the decision to embrace SOA can be …
Semi-Automated Dirsig Scene Modeling From 3d Lidar And Passive Imaging Sources, Steve R. Lach, Scott D. Brown, John P. Kerekes
Semi-Automated Dirsig Scene Modeling From 3d Lidar And Passive Imaging Sources, Steve R. Lach, Scott D. Brown, John P. Kerekes
Presentations and other scholarship
The Digital Imaging and Remote Sensing Image Generation (DIRSIG) model is an established, first-principles based scene simulation tool that produces synthetic multispectral and hyperspectral images from the visible to long wave infrared (0.4 to 20 microns). Over the last few years, significant enhancements such as spectral polarimetric and active Light Detection and Ranging (LIDAR) models have also been incorporated into the software, providing an extremely powerful tool for algorithm testing and sensor evaluation. However, the extensive time required to create large-scale scenes has limited DIRSIG’s ability to generate scenes “on demand.” To date, scene generation has been a laborious, time-intensive …
Vehicle Tracking With Multi-Temporal Hyperspectral Imagery, John Kerekes, Michael Muldowney, Kristin Strackerjan, Lon Smith, Brian Leahy
Vehicle Tracking With Multi-Temporal Hyperspectral Imagery, John Kerekes, Michael Muldowney, Kristin Strackerjan, Lon Smith, Brian Leahy
Presentations and other scholarship
Hyperspectral imagery has the capability of capturing spectral features of interest that can be used to differentiate among similar materials. While hyperspectral imaging has been demonstrated to provide data that enable classification of relatively broad categories, there remain open questions as to how fine of discrimination is possible. An application of this fine discrimination question is the potential that spectral features exist in the surface reflectance of ordinary civilian vehicles that would enable tracking of a particular vehicle across repeated hyperspectral images in a cluttered urban area. To begin to explore this question a vehicle tracking experiment was conducted in …
Perceptual Display Strategies Of Hyperspectral Imagery Based On Pca And Ica, Hongqin Zhang, David W. Messinger, Ethan Montag
Perceptual Display Strategies Of Hyperspectral Imagery Based On Pca And Ica, Hongqin Zhang, David W. Messinger, Ethan Montag
Presentations and other scholarship
This study investigated appropriate methodologies for displaying hyperspectral imagery based on knowledge of human color vision as applied to Hyperion and AVIRIS data. Principal Component Analysis (PCA) and Independent Component Analysis (ICA) were used to reduce the data dimensionality in order to make the data more amenable to visualization in three-dimensional color space. In addition, these two methods were chosen because of their underlying relationships to the opponent color model of human color perception. PCA and ICA-based visualization strategies were then explored by mapping the first three PCs or ICs to several opponent color spaces including CIELAB, HSV, YCrCb, and …
Comparisons Between Spectral Quality Metrics And Analyst Performance In Hyperspectral Target Detection, John P. Kerekes, David W. Messinger, Paul Lee, Rulon E. Simmons
Comparisons Between Spectral Quality Metrics And Analyst Performance In Hyperspectral Target Detection, John P. Kerekes, David W. Messinger, Paul Lee, Rulon E. Simmons
Presentations and other scholarship
Quantitative methods to assess or predict the quality of a spectral image continue to be the subject of a number of current research activities. An accepted methodology would be highly desirable for use in data collection tasking or data archive searching in ways analogous to the current prediction of panchromatic image quality through the National Imagery Interpretation Rating Scale (NIIRS) using the General Image Quality Equation (GIQE). A number of approaches to the estimation of quality of a spectral image have been published, but most capture only the performance of automated algorithms applied to the spectral data. One recently introduced …
Tandi: Threat Assessment Of Network Data And Information, Jared Holsopple, Shanchieh Jay Yang, Moises Sudit
Tandi: Threat Assessment Of Network Data And Information, Jared Holsopple, Shanchieh Jay Yang, Moises Sudit
Presentations and other scholarship
Current practice for combating cyber attacks typically use Intrusion Detection Sensors (IDSs) to passively detect and block multi-stage attacks. This work leverages Level-2 fusion that correlates IDS alerts belonging to the same attacker, and proposes a threat assessment algorithm to predict potential future attacker actions. The algorithm, TANDI, reduces the problem complexity by separating the models of the attacker's capability and opportunity, and fuse the two to determine the attacker's intent. Unlike traditional Bayesian-based approaches, which require assigning a large number of edge probabilities, the proposed Level-3 fusion procedure uses only 4 parameters. TANDI has been implemented and tested with …
When The Artistic Meets The Scientific: A New Method Of Digital Processing For Audio, Video, And Images, Chance M. Glenn Sr
When The Artistic Meets The Scientific: A New Method Of Digital Processing For Audio, Video, And Images, Chance M. Glenn Sr
Presentations and other scholarship
No abstract provided.
An Asymptotic Secrecy Model And Intelligent Systems, Bo Yuan
An Asymptotic Secrecy Model And Intelligent Systems, Bo Yuan
Presentations and other scholarship
This paper proposes a new model for secure communication channels between two parties. The new model assumes that adversaries are storage space bounded, but not computationally bounded. At the initial phase of the secret communication, both parties exchange a large amount of random bits so that adversaries are not able to save them due to the storage space limitation. Each party only saves received data. At the second phase, each party regenerates the random bits, combines with received data, and generates an encryption key iteratively with a one-way hash function. The key is, then, used to encrypt the first transmission …
Multivariate Control Charts For Attribute Data, Donald S. Holmes, A. Erhan Mergen
Multivariate Control Charts For Attribute Data, Donald S. Holmes, A. Erhan Mergen
Presentations and other scholarship
In this paper the use of multivariate control charts for attribute data is proposed. These charts are based on chi-square statistics. Data from various categories can be summarized into a multivariate statistic, i.e., the chi-square statistic, and then the process can be monitored by plotting this statistic on a control chart. A numerical example is provided.
Resist Process Window Characterization For The 45-Nm Node Using An Interferometric Immersion Microstepper, Anatoly Bourov, Stewart Robertson, Bruce W. Smith, Michael Slocum, Emil C. Piscani
Resist Process Window Characterization For The 45-Nm Node Using An Interferometric Immersion Microstepper, Anatoly Bourov, Stewart Robertson, Bruce W. Smith, Michael Slocum, Emil C. Piscani
Presentations and other scholarship
Projection and interference imaging modalities for application to IC microlithography were compared at the 90 nm imaging node. The basis for comparison included simulated two-dimensional image in resist, simulated resist linesize, as well as experimental resist linesize response through a wide range of dose and focus values. Using resist CD as the main response (both in simulation and experimental comparisons), the two imaging modes were found nearly equivalent, as long as a suitable Focus-Modulation conversion is used. A Focus-Modulation lookup table was generated for the 45 nm imaging node, and experimental resist response was measured using an interferometric tool. A …
Three-Dimensional Imaging Of 30-Nm Nanospheres Using Immersion Interferometric Lithography, Jianming Zhou, Yongfa Fan, Bruce W. Smith
Three-Dimensional Imaging Of 30-Nm Nanospheres Using Immersion Interferometric Lithography, Jianming Zhou, Yongfa Fan, Bruce W. Smith
Presentations and other scholarship
Immersion interferometric lithography has been applied successfully to semiconductor device applications, but its potential is not limited to this application only. This paper explores this imaging technology for the production of three-dimensional nano-structures using a 193 nm excimer laser and immersion Talbot interferometric lithographic tool. The fabrication of 3-D photonic crystals for the UV spectrum is still considered to be a challenge. A systematic analysis of immersion lithography for 3-D photonic crystal fabrication will be provided in this paper. Significant progress has been made on optical immersion lithography since it was first proposed. Two-beam immersion interferometric lithography can provide sub-30nm …
Experimental Measurement Of Photoresist Modulation Curves, Anatoly Bourov, Stewart Robertson, Bruce W. Smith, Michael Slocum, Emil C. Piscani
Experimental Measurement Of Photoresist Modulation Curves, Anatoly Bourov, Stewart Robertson, Bruce W. Smith, Michael Slocum, Emil C. Piscani
Presentations and other scholarship
An approach to measurement of resist CD response to image modulation and dose is presented. An empirical model with just three terms is used to describe this response, allowing for direct calculation of photoresist modulation curves. A thresholded latent image response model has been tested to describe CD response for both 90 nm and 45 nm geometry. An assumption of a linear optical image to photoresist latent image correlation is shown as adequate for the 90 nm case, while the 45 nm case demonstrates significant non-linear behavior. This failure indicates the inadequacy of a “resist blur” as a complete descriptive …
Effects Of Beam Pointing Instability On Two-Beam Interferometric Lithography, Yongfa Fan, Anatoly Bourov, Michael Slocum, Bruce W. Smith
Effects Of Beam Pointing Instability On Two-Beam Interferometric Lithography, Yongfa Fan, Anatoly Bourov, Michael Slocum, Bruce W. Smith
Presentations and other scholarship
In a photolithographic system, the mask patterns are imaged through a set of lenses on a resist-coated wafer. The image of mask patterns physically can be viewed as the interference of the plane waves of the diffraction spectrum captured by the lens set incident on the wafer plane at a spectrum of angles. Two-beam interference fringe is the simplest format of the image. Consequently, two-beam interferometric lithography is often employed for photolithographic researches. For two-beam interferometric lithography, beam pointing instability of the illumination source can induce fringe displacement, which results in a loss of fringe contrast if it happens during …
Evanescent Eave Imaging In Optical Lithograpy, Bruce W. Smith, Yongfa Fan, Jianming Zhou, Neal Lafferty, Andrew Estroff
Evanescent Eave Imaging In Optical Lithograpy, Bruce W. Smith, Yongfa Fan, Jianming Zhou, Neal Lafferty, Andrew Estroff
Presentations and other scholarship
New applications of evanescent imaging for microlithography are introduced. The use of evanescent wave lithography (EWL) has been employed for 26nm resolution at 1.85NA using a 193nm ArF excimer laser wavelength to record images in a photoresist with a refractive index of 1.71. Additionally, a photomask enhancement effect is described using evanescent wave assist features (EWAF) to take advantage of the coupling of the evanescent energy bound at the substrate-absorber surface, enhancing the transmission of a mask opening through coupled interference.
H-Infinity Controller Design For Structural Damping, Darren Rowen, Mark A. Hopkins
H-Infinity Controller Design For Structural Damping, Darren Rowen, Mark A. Hopkins
Presentations and other scholarship
This paper describes a multivariable controller design procedure that uses mixed-sensitivity H-infinity control theory. The design procedure is based on the assumption that structural noise can be modeled as entering a state-space system through a random input matrix. The design process starts with a full-order flexible state-space model that undergoes a frequency-weighted balanced truncation to obtain a reduced-order model with excellent low frequency matching. Weighting functions are then created to specify the desired frequency range for disturbance rejection and controller bandwidth. A structural noise input matrix is also designed to identify system modes where maximal damping is desired. An augmented …
Spectral Imaging Of Near-Surface Oxygen Saturation, Nithya R. Subramanian, John P. Kerekes, Kevin Kearney, Nik Schad
Spectral Imaging Of Near-Surface Oxygen Saturation, Nithya R. Subramanian, John P. Kerekes, Kevin Kearney, Nik Schad
Presentations and other scholarship
A number of non invasive methods have been developed to characterize parameters in near-surface skin tissue; however, the work has usually been concerned with using either spectral or spatial information. This motivated our study in which both spatial and spectral data are used to extract features for characterizing the spatial distribution of near-surface oxygen saturation. This paper addresses combined physical and statistical models to retrieve the ratio of oxy- and deoxy-hemoglobin in tissues from data collected by an imaging spectrometer. To retrieve the oxygen saturation fraction from the data, algorithms from the literature using two or three wavelengths were compared …
Spectral Imaging Of Skin: Experimental Observations And Analyses, John P. Kerekes, Nithya R. Subramanian, Kevin Kearney, Nik Schad
Spectral Imaging Of Skin: Experimental Observations And Analyses, John P. Kerekes, Nithya R. Subramanian, Kevin Kearney, Nik Schad
Presentations and other scholarship
The emergence of compact optical spectral imaging technologies has motivated the study of their use in a variety of applications, including medical diagnosis and monitoring. In particular, large format CCD focal planes in conjunction with spectrally tunable devices offer enhanced spatial information together with visible and near infrared (NIR) spectroscopic data for the passive, noninvasive, measurement of human skin and near surface tissue characteristics. One such spectral imaging system was recently developed by mating a Liquid Crystal Tunable Filter (LCTF) together with a 2048x2048 silicon CCD focal plane. This system is capable of collecting more than 30 co-registered spectral images …
Www/ Wiki, Wacky Web?: Wikis, Authority And The Public Sphere, Amit Ray
Www/ Wiki, Wacky Web?: Wikis, Authority And The Public Sphere, Amit Ray
Presentations and other scholarship
No abstract provided.
Spatio-Velocity Csf As A Function Of Retinal Velocity Using Unstabilized Stimuli, Justin Laird, Mitchell Rosen, Jeff Pelz, Ethan Montag, Scott Daly
Spatio-Velocity Csf As A Function Of Retinal Velocity Using Unstabilized Stimuli, Justin Laird, Mitchell Rosen, Jeff Pelz, Ethan Montag, Scott Daly
Presentations and other scholarship
LCD televisions have LC response times and hold-type data cycles that contribute to the appearance of blur when objects are in motion on the screen. New algorithms based on studies of the human visual system's sensitivity to motion are being developed to compensate for these artifacts. This paper describes a series of experiments that incorporate eyetracking in the psychophysical determination of spatio-velocity contrast sensitivity in order to build on the 2D spatiovelocity contrast sensitivity function (CSF) model first described by Kelly and later refined by Daly. We explore whether the velocity of the eye has an additional effect on sensitivity …
A Pattern For Distributing Turn-Based Games, James Heliotis, Axel-Tobias Schreiner
A Pattern For Distributing Turn-Based Games, James Heliotis, Axel-Tobias Schreiner
Presentations and other scholarship
A common choice of applications used in introductory computer science courses is from the domain of simple games. Games present some interesting design notions including move, outcome, state, and turn. If one focuses on the notion of a turn a new design is revealed that combines the familiar patterns of the Model- View-Controller architecture and Proxy when the game is played over a network.
The Use Of Failure Case Studies To Enhance Students’ Understanding Of Structural Behavior And Ethics, Alex Adekoya, Jimmy Patel
The Use Of Failure Case Studies To Enhance Students’ Understanding Of Structural Behavior And Ethics, Alex Adekoya, Jimmy Patel
Presentations and other scholarship
Structural failures occur from time to time, as seen from the recent (January 2006) rash of roof collapses in Germany, Poland, and Russia. However, many engineering and engineering technology students are not made aware of these failures in their analysis or design courses. In the author’s structural analysis and design courses, students are required to research specific structural failures, and to report on these failures, detailing the causes of failure - illustrated with pictures and free-body diagrams, and any lessons learned. Articles on several structural failures are posted regularly on the course website to draw the students’ attention to these …
Formulation Of An Image Processing Technique For Improving Sign2 Performance, Kanthi Sarella
Formulation Of An Image Processing Technique For Improving Sign2 Performance, Kanthi Sarella
Presentations and other scholarship
This paper states and discusses an image processing technique for improving the performance of Phase I of the Sign2 Project. The Sign2 Project is a complete technological approach to the translation of ASL to digital audio and/or text. Considerable research had been carried out in the Sign2 Project and significant progress had been achieved. Tangible results were derived from the research but there had been unintended inconsistencies in the results where accuracy was concerned. This paper discusses the possible reasons for failure of the Sign2 Project to achieve the intended accuracy and proposes potential methods to ameliorate the approach to …
Roots And Wings: Asl Poems Of "Coming Home", Karen Christie, Dorothy Wilkins
Roots And Wings: Asl Poems Of "Coming Home", Karen Christie, Dorothy Wilkins
Presentations and other scholarship
For many Deaf people born into hearing families, coming "home" into the Deaf community for the first time is a common experience and leads to a change in language use and identity. In this paper, we relate how Deaf literary artists, and specifically ASL poets, represent this experience of "coming home." The quest for a home is also a common theme which has emerged among the literatures of postcolonial peoples in exile (Ashcroft, Griffiths, and Tifflin, 2005) and we will suggest it parallels the Deaf experience. In addition, we look at the symbols used by ASL poets for representing the …
Close-Up: Contemporary Deaf Filmmakers, Karen Christie, Patricia Durr, Dorothy Wilkens
Close-Up: Contemporary Deaf Filmmakers, Karen Christie, Patricia Durr, Dorothy Wilkens
Presentations and other scholarship
Professors and filmmakers, Facundo Montenegro (2006) and Dr. Jane Norman (2005) have both asked the question "What is Deaf Cinema?" In this paper, we look at a number of films screened at the Deaf Rochester Film Festival (DRFF) '05 and produced by contemporary Deaf student filmmakers for some answers. In particular, we note how the filmmakers utilized the medium of film to communicate: the use of themes, discourse format, and visual aesthetics.