Engineering Commons^™

Specializing Interfaces For Citizen Science Segmentation Of Volumetric Data, Michelle Vaughan, Cindy Grimm, Ruth Sowell, Robert Pless, Stephen Kobourov

All Computer Science and Engineering Research

Segmentation of 3D and time-varying volumetric (4D) image data is considered a time and resource intensive bottleneck in scientific endeavors. Automatic methods are becoming more reliable, but many data sets still require manual intervention. This can mainly be attributed to the characteristics of the image data not being amenable to automated methods, the existence of variations in or poor image quality, or the need for an expert to review and edit results from an automatic technique. Manually segmenting volumetric data is a challenge even for those more experienced. Understanding the 3D nature of the data and navigating through the 3D …

Building A Skeleton Of A Human Hand Using Microsoft Kinect, Jed Jackoway

All Computer Science and Engineering Research

The goal of the project was to reconstruct the skeleton of a Microsoft Kinect user’s hand. Out of the box, Kinect reconstruct the skeleton of users’ bodies, but it only does large joints, such that the hand is given a location on the general skeleton, but the specifics of the fingers and fist are not actually calculated.

Self-Stabilization In The Distributed Systems Of Finite State Machines, Abusayeed Saifullah

All Computer Science and Engineering Research

The notion of self-stabilization was first proposed by Dijkstra in 1974 in his classic paper. The paper defines a system as self-stabilizing if, starting at any, possibly illegitimate, state the system can automatically adjust itself to eventually converge to a legitimate state in finite amount of time and once in a legitimate state it will remain so unless it incurs a subsequent transient fault. Dijkstra limited his attention to a ring of finite-state machines and provided its solution for self-stabilization. In the years following his introduction, very few papers were published in this area. Once his proposal was recognized as …

Rapid Development Environments For Therapy Games: Looking Glass Therapy Games For Cerebral Palsy Treatment Utilizing The Kinect, Melynda Eden

All Computer Science and Engineering Research

Cerebral palsy is a group of neurological disorders that impair body movement, muscle coordination, hearing, vision, and cognitive function. Symptoms vary but can include muscle weakness, muscle and joint tightness, abnormal or unsteady gait, seizures, learning disabilities, speech problems, as well as hearing or vision problems [1]. Although cerebral palsy cannot be cured, treatments such as physical and occupational therapy can greatly help affected children develop motor skills needed to increase mobility and foster independence [2]. Computer based therapy games have shown promise in helping stroke survivors recover from stroke [3]. Initially, stroke therapy games developed in Looking Glass utilized …

Implementation Of Real-Time Calibration Of Polarization Imaging Sensors, Collin Foster

All Computer Science and Engineering Research

Recent breakthroughs in nanofabrication techniques have led to development of sophisticated Division-of-Focal-Plane (DoFP) polarization imaging sensors. One such technique allows the fabrication of nanowire filters fabricated directly on the imaging sensor itself. This technique can be used to fabricate robust DoFP polarization imaging sensors. However, the polarization information captured by the imagers can be degraded due to imperfections in the fabrication of the nanowire filters on the imaging sensor. Polarization information can also be degraded from other sources including crosstalk between pixels. To compensate for these undesired effects, a calibration routine can be applied to each pixel after image capture. …

An Integrated Data Mining Approach To Real-Time Clinical Monitoring And Deterioration Warning, Yi Mao, Wenlin Chen, Yixin Chen, Chenyang Lu

All Computer Science and Engineering Research

Clinical study found that early detection and intervention are essential for preventing clinical deterioration in patients, for patients both in intensive care units (ICU) as well as in general wards but under real-time data sensing (RDS). In this paper, we develop an integrated data mining approach to give early deterioration warnings for patients under real-time monitoring in ICU and RDS. Existing work on mining real-time clinical data often focus on certain single vital sign and specific disease. In this paper, we consider an integrated data mining approach for general sudden deterioration warning. We synthesize a large feature set that includes …

Data Collection And Performance Monitoring Of Real-Time Parallel Systems , Mahesh Mahadevan

All Computer Science and Engineering Research

Instrumentation and log data monitoring are important features present in many different applications today that are used in analysis of a system behaviour. They are largely used in collection of key information from the system which might allow us to describe or establish certain facts about the behavior of the system. Instrumentation in any application usually comes along with its overheads. In some cases , code for instrumentation might become more expensive on the underlying resources than the application itself. For many applications, especially real-time applications , this overhead can cause serious and often catastrophic system failures. Collecting useful information …

Limitations And Solutions For Real-Time Local Inter-Domain Communication In Xen, Sisu Xi, Chong Li, Chenyang Lu, Christopher Gill

All Computer Science and Engineering Research

As computer hardware becomes increasingly powerful, there is an ongoing trend towards integrating complex, legacy real-time systems using fewer hosts through virtualization. Especially in embedded systems domains such as avionics and automotive engineering, this kind of system integration can greatly reduce system weight, cost, and power requirements. When systems are integrated in this manner, network communication may become local inter-domain communication (IDC) within the same host. This paper examines the limitations of inter-domain communication in Xen, a widely used open-source virtual machine monitor (VMM) that recently has been extended to support real-time domain scheduling. We find that both the VMM …

A 3d Selection & Query Tool For The Geneatlas Project, Donald Mccurdy

All Computer Science and Engineering Research

In this project, I present an application to view, interact with, and search 3D medical volumes as part of the GeneAtlas project.

Design And Verification Of Clockless Advanced Encryption Standard (Aes) Crypto-Hardware For Improved Side-Channel Attack Resistance, Siva Pavan Kumar Kotipalli

Masters Theses

"The Advanced Encryption Standard (AES) is the most widely used symmetric key algorithm standard in different security protocols. The AES was very reliable in providing security for data until a few years ago, when researchers proved the Side Channel Attacks (SCA) like power analysis were successful in compromising this security.

This thesis focuses on designing effective countermeasures against the SCA's, by exploring the usage of an Asynchronous logic based design approach, called Null Convention Logic (NCL). This work discusses the design of NCL based subset of AES cryptosystem. The performance benefits of this novel cryptosystem are presented by making qualitative …

Correction Of An Augmentation Bound Analysis For Parallel Real-Time Tasks, Abusayeed Saifullah, Kunal Agrawal, Chenyang Lu, Christopher Gill

All Computer Science and Engineering Research

This paper proposes some significant corrections in a recent work of Lakshmanan et al on parallel task scheduling. Lakshmanan et al have proposed a transformation of parallel tasks into sequential tasks, and have claimed a resource augmentation bound of 3:42 for partitioned deadline monotonic (DM) scheduling of the transformed tasks. We demonstrate that their analysis for resource augmentation bound is incorrect. We propose a different technique for task transformation that requires a resource augmentation bound of 5 for partitioned DM scheduling.

Ride: A Mixed-Mode Control Interface For Mobile Robot Teams, Erik Karulf, Marshall Strother, Parker Dunton, William D. Smart

All Computer Science and Engineering Research

There is a growing need for robot control interfaces that allow a single user to effectively control a large number of mostly-autonomous robots. The challenges in controlling such a collection of robots are very similar to the challenges of controlling characters in some genres of video games. In this paper, we argue that interfaces based on elements from computer video games are effective tools for the control of large robot teams. We present RIDE, the Robot Interactive Display Environment, an example of such an interface, and give the results of initial user studies with the interface, which lend support to …

Youpon, Garrison Prinslow

All Computer Science and Engineering Research

This project was motivated by two related ideas: what can be learned about the unique issues involved with developing cloud-based mobile applications; and, what application could be developed to evaluate these characteristics that would also be innovative and provide value to users. After vetting ideas for the latter objective, it was clear that a new digital coupon system could offer value and apply interesting technologies to computer science problems, such as shortest path calculation, position-aware authentication, game theory, and statistical reasoning. A brief summary of the motivation for developing the new digital coupon system follows.

Kinect Hand Recognition And Tracking, Alex Drake

All Computer Science and Engineering Research

he goal of this research project was to be able to identify and track a hand using the depth image from a Microsoft Kinect. The ability to do this would have uses in sign language recognition, rehabilitation, and gesture recognition amongst others. The Microsoft Kinect is currently capable of identifying and tracking whole bodies. Our approach was to follow the method that Microsoft used but apply it to detailed hand recognition instead of the body. The basic strategy they used was to take a large amount of labeled depth data and build a decision tree to identify which part of …

Common Dma Engine Interface, Roger Alessi

All Computer Science and Engineering Research

Circuit boards with Field Programmable Gate Arrays (FPGAs) have a historically diverse set of standards for communicating with other devices. This provides a challenge for developers creating FPGA applications and makes migration of applications from one board or FPGA to another difficult. Many board manufacturers, including Xilinx and GiDEL, create boards with Peripheral Component Interconnect Express (PCIe) buses. PCIe provides a low-level standard for transferring data between a Central Processing Unit (CPU) and an FPGA, and these manufacturers have designed Direct Memory Access (DMA) engines to implement the standard. However, each manufacturer’s DMA engines do not share a standard interface, …

The Clear Channel Prior, Devorah Langsam

All Computer Science and Engineering Research

Capturing imagery from outdoor cameras provides a large amount of information about a scene. The true surface appearances of elements in a scene, however, are often incorrectly represented in images. To get a better representation of the scene it is necessary to separate the effects of the underlying reflectance, illumination, and fog in the image. The goal of the dark channel prior is to eliminate the effects of haze in outdoor images and recover the true surface reflectance image for the scene.

Delaunay-Restricted Optimal Triangulation Of 3d Polygons, Ming Zou, Tao Ju, Nathan Carr

All Computer Science and Engineering Research

Triangulation of 3D polygons is a well studied topic of research. Existing methods for finding triangulations that minimize given metrics (e.g., sum of triangle areas or dihedral angles) run in a costly O(n4) time [BS95,BDE96], while the triangulations are not guaranteed to be free of intersections. To address these limitations, we restrict our search to the space of triangles in the Delaunay tetrahedralization of the polygon. The restriction allows us to reduce the running time down to O(n2) in practice (O(n3) worst case) while guaranteeing that the solutions are intersection free. We demonstrate experimentally that the reduced search space is …

Just Draw It! A 3d Sketching System, Cindy Grimm, Pushkar Joshi

All Computer Science and Engineering Research

We present a system for sketching in 2D to create 3D curves. The interface is light-weight, pen-based, and based on observations of how artists sketch on paper.

Studying Network Optimization In The Context Of Self-Stabilization, Abusayeed Saifullah

All Computer Science and Engineering Research

Self-stabilization is a theoretical framework of non-masking fault-tolerance for distributed networks. A self-stabilizing system is capable of tolerating any unexpected transient fault without outside intervention and, regardless of the initial state, it can converge to a legitimate global state, a predefined vector of local states, in finite time. Self-stabilization has rendered a good problem solving paradigm of networks over the last decade. In this paper, we survey the self-stabilizing solutions for various network optimization problems such as network flow, load balancing, load and resource distribution, routing, file distribution, shortest paths etc. The paper also summarizes some recent works presenting how …

Cs 209-01: Computer Programming For Business Ii, David M. Hutchison

Computer Science & Engineering Syllabi

CS 209 is the second in a sequence of two programming classes required for MIS majors. This course will continue teaching students to the basic concepts of programming. Examples are from business applications and emphasis is on problem solving with the computer as a tool.

Cs 400/600-01: Date Structures And Algorithms, Keke Chen

Computer Science & Engineering Syllabi

This course will cover the fundamentals of algorithm design and analysis, the implementation of classical data structures and control structures, and the basic problem solving techniques.

Cs 707-01: Information Retrieval, Krishnaprasad Thirunarayan

Computer Science & Engineering Syllabi

This course will cover models for information retrieval techniques for indexing and searching, and algorithms for classification and clustering. It will also cover SVM, latent semantic indexing, link analysis and ranking, Map-Reduce architecture and Hadoop, to different degrees of detail, time penning.

Ceg 411/611: Microprocessor-Based System Design, Jack Jean

Computer Science & Engineering Syllabi

No abstract provided.

Ceg 498: Design Experience, Thomas C. Hartrum

Computer Science & Engineering Syllabi

CEG 498 (Team Projects I and II) is a summative computer engineering design project course that builds upon previous engineering, science, mathematics and communications course work. CEG 498 projects are a minimum of two quarters in length and must be completed in groups of at least three students.

Empirical Performance Analysis Of High Performance Computing Benchmarks Across Variations In Cloud Computing, Sindhu Mani

UNF Graduate Theses and Dissertations

High Performance Computing (HPC) applications are data-intensive scientific software requiring significant CPU and data storage capabilities. Researchers have examined the performance of Amazon Elastic Compute Cloud (EC2) environment across several HPC benchmarks; however, an extensive HPC benchmark study and a comparison between Amazon EC2 and Windows Azure (Microsoft’s cloud computing platform), with metrics such as memory bandwidth, Input/Output (I/O) performance, and communication computational performance, are largely absent. The purpose of this study is to perform an exhaustive HPC benchmark comparison on EC2 and Windows Azure platforms.

We implement existing benchmarks to evaluate and analyze performance of two public clouds spanning …

A Design Tool For Wsn Design In Buildings, Antony Guinard

Theses

The combination of sensing, processing, communication and actuation has made the monitoring and operation of buildings a significant emerging application area for Wireless Sensor Networks (WSN). The design, implementation and management of WSN is a complex task requiring a broad spectrum of disciplines such as networking and protocols, information management and embedding engineering to be successful. Indoor environments in particular pose a number of challenges that make the design of wireless networks a difficult task. These include the influence of obstacles and people on radio propagation, ever evolving building layout and interference from other wireless networks. The large-scale adoption of …

The Value Of Modeling And Simulation Standards, Andrew J. Collins, David Meyr, Solomon Sherfey, Andreas Tolk, Mikel Petty

VMASC Publications

In the current economic climate, there is a requirement to justify all government spending by demonstrating the added-value that the expenditure gives. Modeling and Simulation (M&S) community is not exempted from this rule. This paper focuses on attempts to value standards and demonstrates that even though a myriad of different standards exist in the United States today, no one has "cracked the nut" on determining their value. This does not mean that standards are without value. The paper highlights their importance to our society and human development as a whole. Thus if we cannot give a value to M&S standards, …

Erasure Techniques In Mrd Codes, Florentin Smarandache, W.B. Vasantha Kandasamy, R. Sujatha, R.S. Raja Durai

Branch Mathematics and Statistics Faculty and Staff Publications

In this book the authors study the erasure techniques in concatenated Maximum Rank Distance (MRD) codes. The authors for the first time in this book introduce the new notion of concatenation of MRD codes with binary codes, where we take the outer code as the RD code and the binary code as the inner code. The concatenated code consists of the codewords of the outer code expressed in terms of the alphabets of the inner code. These new class of codes are defined as CRM codes. This concatenation techniques helps one to construct any CRM code of desired minimum distance …

Neutrosophic Masses & Indeterminate Models Applications To Information Fusion, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

In this paper we introduce the indeterminate models in information fusion, which are due either to the existence of some indeterminate elements in the fusion space or to some indeterminate masses. The best approach for dealing with such models is the neutrosophic logic.

The Practicality Of Cloud Computing, Xiaohua (Cindy) Li

Librarian Publications

Since its inception, cloud computing has become the current paradigm. Organizations of different size and type have embraced the concept because of its both technological and economic advantages. Sacred Heart University Library has recently published its newly designed website on the cloud. For a small academic library, what does it mean to put their online data on the cloud? This paper will analyze and discuss the advantages of cloud computing, and some potential obstacles created by it through the author’s observations. This paper hopes the uniqueness of the case will contribute to the improvement of cloud computing experience of other …