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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Shoulder Muscular Fatigue From Static Posture Concurrently Reduces Cognitive Attentional Resources, Mitchell L. Stephenson, Alec G. Ostrander, Hamid Norasi, Michael C. Dorneich Jun 2019

Shoulder Muscular Fatigue From Static Posture Concurrently Reduces Cognitive Attentional Resources, Mitchell L. Stephenson, Alec G. Ostrander, Hamid Norasi, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Publications

Objective: The goal of this work is to determine whether muscular fatigue concurrently reduces cognitive attentional resources in technical tasks for healthy adults.

Background: Muscular fatigue is common in the workplace but often dissociated with cognitive performance. A corpus of literature demonstrates a link between muscular fatigue and cognitive function, but few investigations demonstrate that the instigation of the former degrades the latter in a way that may affect technical task completion. For example, laparoscopic surgery increases muscular fatigue, which may risk attentional capacity reduction and undermine surgical outcomes.

Method: A total of 26 healthy participants completed a dual-task cognitive ...


Design By Taking Perspectives: How Engineers Explore Problems, Jaclyn K. Murray, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert Apr 2019

Design By Taking Perspectives: How Engineers Explore Problems, Jaclyn K. Murray, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert

Industrial Design Publications

Background: Problem exploration includes identifying, framing, and defining design problems and bounding problem spaces. Intentional and unintentional changes in problem understanding naturally occur as designers explore design problems to create solutions. Through problem exploration, new perspectives on the problem can emerge along with new and diverse ideas for solutions. By considering multiple problem perspectives varying in scope and focus, designers position themselves to increase their understandings of the “real” problem and engage in more diverse idea generation processes leading to an increasing variety of potential solutions.

Purpose/Hypothesis: The purpose of this study was to investigate systematic patterns in problem ...


Evaluation Of An Intelligent Team Tutoring System For A Collaborative Two-Person Problem: Surveillance, Alec Ostrander, Desmond Bonner, Jamiahus Walton, Anna Slavina, Kaitlyn M. Ouverson, Adam Kohl, Stephen Gilbert, Michael Dorneich, Anne Sinatra, Eliot H. Winer Jan 2019

Evaluation Of An Intelligent Team Tutoring System For A Collaborative Two-Person Problem: Surveillance, Alec Ostrander, Desmond Bonner, Jamiahus Walton, Anna Slavina, Kaitlyn M. Ouverson, Adam Kohl, Stephen Gilbert, Michael Dorneich, Anne Sinatra, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Publications

This paper describes the development and evaluation of an Intelligent Team Tutoring System (ITTS) for pairs of learners working collaboratively to monitor an area. In the Surveillance Team Tutor (STT), learners performed a surveillance task in a virtual environment, communicating to track hostile moving soldiers. This collaborative problem solving task required significant communication to achieve the common goal of perfect surveillance. In a pilot evaluation, 16 two-person teams performed the task within one of three feedback conditions (Individual, Team, or None) across four trials each. The STT used a unique approach to filtering feedback so that teams in both individual ...


Team Data Analysis Using Fate: Framework For Automated Team Evaluation, Alec Ostrander, Stephen B. Gilbert, Michael C. Dorneich Jan 2019

Team Data Analysis Using Fate: Framework For Automated Team Evaluation, Alec Ostrander, Stephen B. Gilbert, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

In this paper we introduce a conceptual framework for the design of automated team evaluation processes (FATE), inspired by lessons learned from multiple intelligent team tutoring experiences. The framework consists of five phases. The first, Team Construct, defines the theoretical basis of the evaluation and therefore the end goal of the evaluation process. The second, Behavioral Markers, defines a method for identifying the otherwise unobservable constructs. The third, Raw Data, defines the data to be captured and recorded. The fourth, Enriched State Representation, defines a method for making the data directly relevant for team evaluation. The fifth, Team Metric, is ...


Evidence Of Problem Exploration In Creative Designs, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert Nov 2018

Evidence Of Problem Exploration In Creative Designs, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert

Industrial Design Publications

Design problems are often presented as structured briefs with detailed constraints and requirements, suggesting a fixed definition. However, past studies have identified the importance of exploring design problems for creative design outcomes. Previous protocol studies of designers has shown that problems can “co-evolve” with the development of solutions during the design process. But to date, little evidence has been provided about howdesigners systematically explore presented problems to create better solutions. In this study, we conducted a qualitative analysis of 252 design problems collected from publically available sources, including award-winning product designs and open-source design competitions. This database offers an independent ...


Strategies To Redefine The Problem Exploration Space For Design Innovation, Seda Mckilligan, Samantha L. Creeger Sep 2018

Strategies To Redefine The Problem Exploration Space For Design Innovation, Seda Mckilligan, Samantha L. Creeger

Industrial Design Conference Presentations, Posters and Proceedings

Designers are used to solving problems that are given to them, leading them to focus on creating feasible solutions rather than exploring novel perspectives on the presented problems. Creative innovations in problem understanding may lead directly to more innovation solutions. Although problem exploration has been identified as a key process in design thinking, how designers restructure and reframe the problem is not fully examined. The present work aimed to understand how designers intentionally explore variants of problems on the way to solutions. Through an empirical study industrial design students, we documented a high degree of variation in the problem perspectives ...


Feedback Design Considerations For Intelligent Team Tutoring Systems, Jamiahus Walton, Alec Ostrander, Kaitlyn M. Ouverson, Stephen B. Gilbert, Michael C. Dorneich, Eliot H. Winer, Anne Sinatra Sep 2018

Feedback Design Considerations For Intelligent Team Tutoring Systems, Jamiahus Walton, Alec Ostrander, Kaitlyn M. Ouverson, Stephen B. Gilbert, Michael C. Dorneich, Eliot H. Winer, Anne Sinatra

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Challenges arise when developing a computer-based Intelligent Team Tutoring System (ITTS) that attempts to deliver feedback to teams as effectively as a human tutor. The purpose of this current work is to outline elements of feedback that should be considered when designing feedback for an ITTS. The authors present the results of a study that consisted of 32 participants grouped into 16 teams of two. Each team conducted a surveillance task where they received individual or team feedback. Feedback content was written using either the bald (direct feedback; no need for interpretation) or off-record (general feedback; interpretation needed) etiquette strategy ...


Stress Inducing Demands In Virtual Environments, Tor Finseth, Neil Barnett, Elizabeth Shirtcliff, Michael C. Dorneich, Nir Keren Sep 2018

Stress Inducing Demands In Virtual Environments, Tor Finseth, Neil Barnett, Elizabeth Shirtcliff, Michael C. Dorneich, Nir Keren

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This study investigated how simulated features in a virtual reality (VR) induce stress by means of user-focused demands in serious games. VR serious games have been used for therapeutic interventions, standardized stress tests, and occupational training. However, it is an open question how stress can be induced using serious games formal features, such as tasks/sensory modalities, music, pace of the game, and graphics. The Highrise VR standardized stress simulation was built to induce stress cohesively based on emotional, social, cognitive, and physical demands. The simulation induces stress by requiring coping with emotional demand (innate fear) of being at a ...


The Wearer, The Device, And Its Use: Advances In Understanding The Social Acceptability Of Wearables, Norene Kelly, Stephen B. Gilbert Sep 2018

The Wearer, The Device, And Its Use: Advances In Understanding The Social Acceptability Of Wearables, Norene Kelly, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The WEAR Scale was used to collect data on the social acceptability of three wearable devices from 1,387 participants from the US Midwest and Silicon Valley. The most notable result was that a head-worn “medical device” was rated as more socially acceptable (d=0.78) than the same device described as a “brain fitness tool,” which was the opposite of what was hypothesized. Also, as hypothesized, Silicon Valley participants found the wearables more socially acceptable than Midwestern U.S. participants. The Scale and these results enable industry to better predict the human factors affecting social acceptability of wearables throughout ...


Human Factors And Ergonomics In Diversity, Inclusion And Social Justice Research, Rupa Valdez, Enid Montague, Mattie N. Milner, Michael C. Dorneich, Rod Roscoe Sep 2018

Human Factors And Ergonomics In Diversity, Inclusion And Social Justice Research, Rupa Valdez, Enid Montague, Mattie N. Milner, Michael C. Dorneich, Rod Roscoe

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The Human Factors and Ergonomics Society Diversity Committee is entering its second year and continuing to explore ways to increase the diversity of the society. Following last year’s panel on “Challenges and Opportunities for Involvement,” we, and others, recognized that human factors and ergonomics (HFE) professionals are equipped and able to advance diversity, inclusion and social justice issues. This panel will bring together researchers to discuss experiences addressing these issues to highlight existing work, spark excitement about conducting new work and share advice. This panel will discuss and share lessons learned in a range of projects, including an HFE ...


Affect-Aware Adaptive Tutoring Based On Human–Automation Etiquette Strategies, Euijung Yang, Michael C. Dorneich Mar 2018

Affect-Aware Adaptive Tutoring Based On Human–Automation Etiquette Strategies, Euijung Yang, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Publications

Objective: We investigated adapting the interaction style of intelligent tutoring system (ITS) feedback based on human–automation etiquette strategies.

Background: Most ITSs adapt the content difficulty level, adapt the feedback timing, or provide extra content when they detect cognitive or affective decrements. Our previous work demonstrated that changing the interaction style via different feedback etiquette strategies has differential effects on students’ motivation, confidence, satisfaction, and performance. The best etiquette strategy was also determined by user frustration.

Method: Based on these findings, a rule set was developed that systemically selected the proper etiquette strategy to address one of four learning factors ...


Evaluating The Effectiveness Of Graduated Stress Exposure In Virtual Spaceflight Hazard Training, Tor T. Finseth, Nir Keren, Michael C. Dorneich, Warren D. Franke, Clayton C. Anderson, Mack C. Shelley Ii Jan 2018

Evaluating The Effectiveness Of Graduated Stress Exposure In Virtual Spaceflight Hazard Training, Tor T. Finseth, Nir Keren, Michael C. Dorneich, Warren D. Franke, Clayton C. Anderson, Mack C. Shelley Ii

Industrial and Manufacturing Systems Engineering Publications

Psychological and physiological stress experienced by astronauts can pose risks to mission success. In clinical settings, gradually increasing stressors help patients develop resilience. It is unclear whether graduated stress exposure can affect responses to acute stressors during spaceflight. This study evaluated psychophysiological responses to potentially catastrophic spaceflight operation, with and without graduated stress exposure, using a virtual reality environment. Twenty healthy participants were tasked with locating a fire on a virtual International Space Station (VR-ISS). After orientation, the treatment group (n = 10) practiced searching for a fire while exposed to a low-level stressor (light smoke), while the control group (n ...


Augmented Tutoring, Santosh Mathan, Stephen D. Whitlow, Michael C. Dorneich, Patricia M. Ververs Aug 2017

Augmented Tutoring, Santosh Mathan, Stephen D. Whitlow, Michael C. Dorneich, Patricia M. Ververs

Industrial and Manufacturing Systems Engineering Patents

An augmented tutoring system is provided that includes a simulation device, at least one sensor and a controller. The simulation device is adapted to provide a simulation that has an objective to accomplish by a student, wherein to achieve the objective a plurality of tasks must be correctly completed. The at least one sensor is adapted to monitor a cognitive state of the student while engaged with the simulation. The controller is adapted to process cognitive state information from the at least one sensor and to process student progress information relating to the completion of each of the tasks. The ...


Using Human Factors To Establish Occupant Task Lists For Office Building Simulations, Kelly Kalvelage, Michael Dorneich Sep 2016

Using Human Factors To Establish Occupant Task Lists For Office Building Simulations, Kelly Kalvelage, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The purpose of this research is to establish an in-depth understanding of task-related occupant behaviors toserve as the basis for the design of an occupant-building interaction interface. Building simulations arefrequently used to design buildings and predict energy performance. Yet, all of these assumptions are relatedto occupant behavior and interactions with the building. In an occupant-controlled environment, anunderstanding of the occupant decision-making process must be represented in the simulation task lists.Current task lists assume general occupant behaviors based on averages, and lack the details required for thisunderstanding. This paper looks to strike a balance between simplicity and complexity in the ...


The Hidden Challenges Of Team Tutor Development, Desmond Bonner, Anna Slavina, Anastacia Macallister, Joseph Holub, Stephen B. Gilbert, Anne M. Sinatra, Michael C. Dorneich, Eliot H. Winer Jan 2016

The Hidden Challenges Of Team Tutor Development, Desmond Bonner, Anna Slavina, Anastacia Macallister, Joseph Holub, Stephen B. Gilbert, Anne M. Sinatra, Michael C. Dorneich, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This paper describes the unexpected challenges of team tutor development such as the task and logistics. Previously, a research team from Iowa State University (ISU) working with the U.S. Army Research Laboratory (ARL) developed the reconnaissance (Recon) task for simple team tutoring with the Generalized Intelligent Framework for Tutoring (GIFT) (Bonner et al., 2015; Gilbert et al., 2015). Considerations were included for the testing environment such as audio-based team interactions, initialization of the scenario simultaneously, and the inclusion of eyetracking and screen capture technology. Throughout the process of tutor development, several computational challenges have been encountered such as the ...


Multiple Two-State Classifier Output Fusion System And Method, Stephen Whitlow, Michael C. Dorneich May 2015

Multiple Two-State Classifier Output Fusion System And Method, Stephen Whitlow, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Patents

A system and method for providing more than two levels of classification distinction of a user state are provided. The first and second general states of a user are sensed. The first general state is classified as either a first state or a second state, and the second general state is classified as either a third state or a fourth state. The user state of the user is then classified as one of at least three different classification states.


The Team Multiple Errands Test: A Platform To Evaluate Distributed Teams, Jamiahus Walton, Desmond Carletus Bonner, Kelsey Walker, Samantha Mater, Michael C. Dorneich, Stephen B. Gilbert, Robert West Mar 2015

The Team Multiple Errands Test: A Platform To Evaluate Distributed Teams, Jamiahus Walton, Desmond Carletus Bonner, Kelsey Walker, Samantha Mater, Michael C. Dorneich, Stephen B. Gilbert, Robert West

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Teams have the ability to achieve goals that are unobtainable by individuals alone. However, there is little agreement on a standard model for researching the performance of distributed teams. Initial pilot results suggest that the Multiple Errands Test (MET), when adapted to a team in a virtual environment, is a platform for evaluating the impact of feedback characteristics. To demonstrate the potential of the Team MET as a platform for future team research in the broader CSCW community, an example study is described in which team members are given feedback in one of four conditions: individual private, team private, individual ...


Workload Management System And Method, Michael C. Dorneich, William Rogers, Stephen Whitlow, Chris Hamblin, Claudia Keinrath Jan 2015

Workload Management System And Method, Michael C. Dorneich, William Rogers, Stephen Whitlow, Chris Hamblin, Claudia Keinrath

Industrial and Manufacturing Systems Engineering Patents

A system and method are provided for facilitating workload management. The system processes first sensor data to estimate the current cognitive state of a first person, and processes second sensor data to estimate the current cognitive state of a second person. Information representative of the estimates of the current cognitive states of the first person and the second person is simultaneously rendered on a display device.


Evaluating Distributed Teams With The Team Multiple Errands Test, Jamiahus Walton, Stephen B. Gilbert, Eliot Winer, Michael C. Dorneich, Desmond Bonner Jan 2015

Evaluating Distributed Teams With The Team Multiple Errands Test, Jamiahus Walton, Stephen B. Gilbert, Eliot Winer, Michael C. Dorneich, Desmond Bonner

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Modern day teams, whether in the military or civilian workplace, have the ability to achieve goals that are otherwise unobtainable by individuals. The timing and characteristics of feedback that teams receive during training are critical. Though there is a solid foundation of research on optimal feedback, there is limited exploration of what constitutes ideal team feedback including addressing the individual team member versus the whole team and whether that feedback is public (visible to the entire team) or private (visible only to one member of the team). Previous research that studied the effect of feedback on team performance has yielded ...


Fusing Self-Reported And Sensor Data From Mixed-Reality Training, Trevor Richardson, Stephen B. Gilbert, Joseph Holub, Frederick Thompson, Anastacia Macallister, Rafael Radkowski, Eliot Winer, Paul Davies, Scott Terry Jan 2014

Fusing Self-Reported And Sensor Data From Mixed-Reality Training, Trevor Richardson, Stephen B. Gilbert, Joseph Holub, Frederick Thompson, Anastacia Macallister, Rafael Radkowski, Eliot Winer, Paul Davies, Scott Terry

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Military and industrial use of smaller, more accurate sensors are allowing increasing amounts of data to be acquired at diminishing costs during training. Traditional human subject testing often collects qualitative data from participants through self-reported questionnaires. This qualitative information is valuable but often incomplete to assess training outcomes. Quantitative information such as motion tracking data, communication frequency, and heart rate can offer the missing pieces in training outcome assessment. The successful fusion and analysis of qualitative and quantitative information sources is necessary for collaborative, mixed-reality, and augmented-reality training to reach its full potential. The challenge is determining a reliable framework ...


Visual Models For Abstract Concepts Towards Better Learning Outcomes And Self-Efficacy, Kyung J. Min, John K. Jackman, Jason C.K. Chan Jan 2014

Visual Models For Abstract Concepts Towards Better Learning Outcomes And Self-Efficacy, Kyung J. Min, John K. Jackman, Jason C.K. Chan

Psychology Conference Papers, Posters, and Presentations

No abstract provided.


Cognitive Aircraft Hazard Advisory System (Cahas), Donald C. Kauffman, Michael C. Dorneich Oct 2013

Cognitive Aircraft Hazard Advisory System (Cahas), Donald C. Kauffman, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Patents

Integrated surveillance systems and methods for processing multiple sensor inputs and determining a best route for avoiding multiple hazards. An example method performed on a first aircraft includes generating a plurality of routes for avoiding a previously determined alert from a first advisory system. Then, probability of success information is generated at other advisory systems for each of the plurality of routes. The best route of the plurality of routes is determined based on the generated probabilities and output to the flight crew or other aircraft. The probability of success information includes a previously defined uncertainty value. The uncertainty value ...


Human Differences In Navigational Approaches During Tele-Robotic Search, Richard Stone, Michael Dorneich, Stephen Gilbert, Elease Mclaurin Sep 2013

Human Differences In Navigational Approaches During Tele-Robotic Search, Richard Stone, Michael Dorneich, Stephen Gilbert, Elease Mclaurin

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This study investigated the navigational approaches used by humans when operating a simple tele-robot in a simulated search and rescue operation. Tele-robots are being increasingly used in safety-critical operations. During tele-operation, the situational awareness of tele-robot operators needs to be supported. Navigation depends on psychological skills of perception and cognition, and can utlize different problem solving strategies. However, there is limited knowledge of how operators develop situational awareness while navigating tele-robots. The study was conducted to understand if there were distinctive, identifiable strategies in the way operators navigated. When participants manually tele-operated a robot in a remote physical environment, two ...


Rapid Serial Visual Presentation Triage Prioritization Based On User State Assessment, Santosh Mathan, Michael C. Dorneich, Patricia M. Ververs, Stephen Whitlow Feb 2013

Rapid Serial Visual Presentation Triage Prioritization Based On User State Assessment, Santosh Mathan, Michael C. Dorneich, Patricia M. Ververs, Stephen Whitlow

Industrial and Manufacturing Systems Engineering Patents

A method and system are provided that prioritize the output of an image triage that is based on rapid serial visual presentation. User responses and estimates of the effectiveness with which each image is likely to have been processed by a user are employed for post triage image prioritization of potential targets. Images associated with a user response, processed during optimal user states, are assigned the highest priority for post triage examination, as targets are likely. Images without a user response that are processed during optimal user states are assigned the lowest priority, as these are unlikely to contain targets ...


Assessing Multiple Participant View Positioning In Virtual Reality-Based Training, Jonathan W. Kelly, Eliot Winer, Stephen B. Gilbert, Michael Curtis, Eduardo Rubio, Ken Kopecky, Joseph Scott Holub, Julio De La Cruz Jan 2013

Assessing Multiple Participant View Positioning In Virtual Reality-Based Training, Jonathan W. Kelly, Eliot Winer, Stephen B. Gilbert, Michael Curtis, Eduardo Rubio, Ken Kopecky, Joseph Scott Holub, Julio De La Cruz

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

As cost, time, and other challenging resource requirements are placed on U.S. Joint forces training, the role of simulations will play an even greater role than it does today. To effectively aid a Warfighter in gaining critical skills and to assess the proficiency of those skills, computer-based training must advance beyond traditional desktop simulations and monoscopic projection technology. Virtual Reality (VR) based training has been proven in fields such as medical and engineering to increase a trainee’s level of immersion, and increase training performance in several metrics including accuracy and efficiency, while simultaneously decreasing cost.

Warfighter training offers ...


Comparing Training Performance With Vibrotactile Hit Alerts Vs. Audio Alerts, Stephen B. Gilbert, Anthony Civitate, Jonathan W. Kelly, Frederick Thompson, Alisha Smith, Ken Kopecky, Eliot Winer, Julio De La Cruz Jan 2013

Comparing Training Performance With Vibrotactile Hit Alerts Vs. Audio Alerts, Stephen B. Gilbert, Anthony Civitate, Jonathan W. Kelly, Frederick Thompson, Alisha Smith, Ken Kopecky, Eliot Winer, Julio De La Cruz

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Live, virtual, and constructive training that integrates dismounted warfighter training with convoy training, pilot training, and other systems has been demonstrated to reduce training time, and studies have shown that a high level of immersion and the illusion of presence in a VR environment contribute to this success. However, current force-on-force training simulators lack one major quality that is needed to impart this strong sense of presence for warfighters: the consequence of getting shot.

Simulated return-fire systems have been developed for different purposes including military, police and entertainment. Some use projectiles, but that approach is usually limited to a shoot ...


Space Perception In Virtual Environments: Displacement From The Center Of Projection Causes Less Distortion Than Predicted By Cue-Based Models, Jonathan W. Kelly, Melissa Burton, Brice Pollock, Eduardo Rubio, Michael Curtis, Julio De La Cruz, Stephen B. Gilbert, Eliot H. Winer Jan 2013

Space Perception In Virtual Environments: Displacement From The Center Of Projection Causes Less Distortion Than Predicted By Cue-Based Models, Jonathan W. Kelly, Melissa Burton, Brice Pollock, Eduardo Rubio, Michael Curtis, Julio De La Cruz, Stephen B. Gilbert, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Publications

Virtual reality systems commonly include both monocular and binocular depth cues, which have the potential to provide viewers with a realistic impression of spatial properties of the virtual environment. However, when multiple viewers share the same display, only one viewer typically receives the projectively correct images. All other viewers experience the same images despite displacement from the center of projection (CoP). Three experiments evaluated perceptual distortions caused by displacement from the CoP and compared those percepts to predictions of models based on monocular and binocular viewing geometry. Leftward and rightward displacement from the CoP caused virtual angles on the ground ...


Multiple Two-State Classifier Output Fusion System And Method: Patent Application, Stephen Whitlow, Michael C. Dorneich Oct 2012

Multiple Two-State Classifier Output Fusion System And Method: Patent Application, Stephen Whitlow, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Patents

A system and method for providing more than two levels of classification distinction of a user state are provided. The first and second general states of a user are sensed. The first general state is classified as either a first state or a second state, and the second general state is classified as either a third state or a fourth state. The user state of the user is then classified as one of at least three different classification states.


The Right View From The Wrong Location: Depth Perception In Stereoscopic Multi-User Virtual Environments, Brice Pollock, Melissa Burton, Jonathan W. Kelly, Stephen B. Gilbert, Eliot H. Winer Apr 2012

The Right View From The Wrong Location: Depth Perception In Stereoscopic Multi-User Virtual Environments, Brice Pollock, Melissa Burton, Jonathan W. Kelly, Stephen B. Gilbert, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Publications

Stereoscopic depth cues improve depth perception and increase immersion within virtual environments (VEs). However, improper display of these cues can distort perceived distances and directions. Consider a multi-user VE, where all users view identical stereoscopic images regardless of physical location. In this scenario, cues are typically customized for one "leader" equipped with a head-tracking device. This user stands at the center of projection (CoP) and all other users ("followers") view the scene from other locations and receive improper depth cues. This paper examines perceived depth distortion when viewing stereoscopic VEs from follower perspectives and the impact of these distortions on ...


Workload Management System And Method, Michael C. Dorneich, William Rogers, Stephen Whitlow, Chris Hamblin, Claudia Keinrath Mar 2012

Workload Management System And Method, Michael C. Dorneich, William Rogers, Stephen Whitlow, Chris Hamblin, Claudia Keinrath

Industrial and Manufacturing Systems Engineering Patents

A system and method are provided for facilitating workload management. The system processes first sensor data to estimate the current cognitive state of a first person, and processes second sensor data to estimate the current cognitive state of a second person. Information representative of the estimates of the current cognitive states of the first person and the second person is simultaneously rendered on a display device.