Gregory F. Welch, PhD

Dr. Greg Welch is the Florida Hospital Endowed Chair in Healthcare Simulation at the University of Central Florida College of Nursing. He is also the co-director of the UCF Synthetic Reality Laboratory. He holds additional faculty appointments in the computer science department of the College of Engineering and Computer Science and in the UCF Institute for Simulation & Training. Professor Welch is also an adjunct professor in the Department of Computer Science at the University of North Carolina at Chapel Hill.

Dr. Welch has co-authored more than 100 publications, and is a co-inventor on multiple patents. He has co-chaired conferences, workshops, and seminars; served on numerous international program committees. His current research interests include virtual and augmented reality, motion tracking systems, 3D telepresence, and stochastic estimation, with applications to training and education.

Prior to coming to UCF, Dr. Welch was a research professor at UNC. He also worked on the Voyager Spacecraft Project at NASA’s Jet Propulsion Laboratory and on airborne electronic countermeasures at Northrop-Grumman’s Defense Systems Division. In 1986, he received a BS degree in Electrical Technology from Purdue University (with highest distinction), and in 1996 a PhD in Computer Science from the University of North Carolina at Chapel Hill.

Funded Research

  • Principal Investigator, Physical-Virtual Patient Bed for Healthcare Training and Assessment, National Science Foundation ($894,431).

  • Principal Investigator, Assessment of Neurologic Symptomatology Using an Interactive Physical-Virtual Head with Touch, UCF Foundation ($900).

  • Principal Investigator, Human-Surrogate Interaction, U.S. Office of Naval Research, ($2,312,188).

  • Principal Investigator, A Testbed for Evaluating Human Surrogates for Live-Virtual Training, U.S. Office of Naval Research ($178,437).

  • Principal Investigator, Transportable Human-Surrogate Interaction System, U.S. Office of Naval Research ($154,159).

  • Co-Principal Investigator, Improving Augmented Reality Technologies for Training and Education, Lockheed Martin and UCF Foundation ($133,085).

  • Investigator, REU Site: Research Experiences in the Internet of Things (IoT), National Science Foundation ($260,000).

Selected Publications

  • Hochreiter, J., Daher, S., Nagendran, A., Gonzalez, L., & Welch, G. (2016). Optical touch sensing on nonparametric rear-projection surfaces for interactive physical-virtual experiences. Presence: Teleoperators & Virtual Environments, 25(1), 33-46.

  • Lee, M., Kim, K., Daher, S., Raij, A., Schubert, R., Bailenson, J., & Welch G. (2016). The wobbly table: Increased social presence via subtle incidental movement of a real-virtual table. IEEE Virtual Reality 2016, Proceedings. Greenville, SC: Institute of Electrical and Electronics Engineers.

  • Welch, G. (2016). Highlights of “Immersive Sciences” Research in the U.S.A.: Augmented/ Virtual Reality and Human Surrogates. Journal of the Virtual Reality Society of Japan (JVRSJ), 21(2), 128-137.

  • Hochreiter, J., Daher, S., Nagendran, A., Gonzalez, L., & Welch, G. (2015). Touch sensing on non-parametric rear-projection surfaces: A physical-virtual head for hands-on healthcare training. Proceedings of IEEE Virtual Reality Annual International Symposium, 2015, 69-74.

  • Zhang J., Welch, G., Ramakrishnan N., and Rahman S. (2015). Kalman filters for dynamic and secure smart grid state estimation. Intelligent Industrial Systems, 1(1), 29-36.

    Zhou, N., Meng, D., Huang, Z., & Welch, G. (2015) Dynamic state estimation of a synchronous machine using PMU data: A comparative study. IEEE Transactions on Smart Grid, 6(1), 450-460.

  • Kim, K., Nagendran, A., Bailenson, J., & Welch G. (2015). Expectancy violations related to a virtual human's joint gaze behavior in real-virtual human interactions. Proceedings of the 28th Annual Conference on Computer Animation and Social Agents, CASA 2015, 5-8, Singapore, Singapore.

  • Kim, K., & Welch, G. (2015). Maintaining and enhancing human-surrogate presence in augmented reality. In T. Oishi, & J. Grubert (Eds.), 2015 IEEE International Symposium on Mixed & Augmented Reality Workshops, 15-19. Los Alamitos, CA: Conference Publishing Services, IEEE Computer Society.

  • Vasquez III., E., Nagendran, A., Welch, G.F., Marino, M.T., Hughes, D.E., Koch, A., & Delisio, L. (2015). Virtual learning environments for students with disabilities: A review and analysis of the empirical literature and two case studies. Rural Special Education Quarterly, 34(3), 26-32.

  • Welch, G., Hochreiter, J. Daher, S., Nagendran, A., & Gonzalez, L. (2015). Touch sensing on non-parametric rear projection surfaces: A physical-virtual head for hands on healthcare training. Proceedings of IEEE Virtual Reality. 69-74. March 23-27 Arles, France.

  • Hughes, C., Nagendran, A., Dieker, L., Hynes, M., & Welch, G. (2015). Applications of avatar mediated interaction to teaching, training, job skills and wellness. In G. Brunnett, S. Coquillart, R. Liere, G. Welch, & L. Vasa (Eds.), Lecture notes in computer science: No. 8844. Virtual realities: International Dagstuhl Seminar, Dagstuhl Castle Germany, June 9-14, 2013: Revised selected papers (pp. 133-146). Cham, Switzerland: Springer International Publishing.

  • Nagendran A., Welch G., Hughes, C., & Pillat, R. (2015). Technical report: Exploring human surrogate characteristics. In G. Brunnett, S. Coquillart, R. Liere, G. Welch, & L. Vasa (Eds.), Lecture notes in computer science: No. 8844. Virtual realities: International Dagstuhl Seminar, Dagstuhl Castle Germany, June 9-14, 2013: Revised selected papers (pp. 215-228). Cham, Switzerland: Springer International Publishing.

  • Brunnett G., Coquillart S., Liere R., Welch G., & Vasa, L. (Eds.). (2015). Lecture notes in computer science: No. 8844. Virtual realities: International Dagstuhl Seminar, Dagstuhl Castle Germany, June 9-14, 2013: Revised selected Papers. Cham, Switzerland: Springer International Publishing.

  • Sonnenwald, D.H., Soderholm, H.M., Welch, G., Cairns, B.A., Manning, J.E., & Fuchs, H. (2014). Illuminating collaboration in emergency health care situations: Paramedic-physician collaboration and 3d telepresence technology. Information Research, 19(2).

  • Nagendran, A., Pillat, R., Hughes, C., & Welch, G. (December, 2012). Continuum of virtual- human space: Towards improved interaction strategies for physical-virtual avatars. In Proceedings of 11th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and its Applications in Industry (VRCAI 2012).

  • Rivera-Gutierrez, D., Welch, G., Lincol, P., Whitton, M., Cendan, J., Chesnutt, D.A., Fuchs, H., & Lok, B. (2012). Shader lamps virtual patients: the physical representation of virtual patients. Medicine Meets Virtual Reality 19 - NextMed, Studies in Health Technology and Informatics, IOS Press, 2012.

Associate Editor for Journals

  • Presence: Teleoperators and Virtual Environments
  • Frontiers in Virtual Environments

Dr. Welch also maintains an internationally-recognized website dedicated to the Kalman filter, a set of mathematical equations that provide an efficient means to compute an optimal estimate of the state of a process. His article “An Introduction to the Kalman Filter” remains popular—it has been cited more than 5,000 times (Google Scholar, 3 September 2014) and has been translated into multiple languages. 

Professional Organizations

  • IEEE Computer Society
  • Association for Computing Machinery
  • Southern Nursing Research Society
  • International Nursing Association for Clinical Sim­­ulation & Learning
  • Society for Simulation in Healthcare

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Positions
  • Florida Hospital Endowed Chair in Healthcare Simulation
  • Co-director, UCF Synthetic Reality Laboratory
  • Professor (faculty appointments):
    • Computer Science, UCF College of Engineering & Computer Science
    • UCF Institute for Simulation & Training (IST)

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