Helmuth Trefftz Gómez

Acompañamiento a todos los proyectos del laboratorio.

Estudios de pregrado

Ingeniería de Sistemas, Universidad EAFIT– Medellín, Colombia. 1984.

Estudios de posgrado, maestrías o doctorados

• Ph.D. Electrical and Computer Engineering. Rutgers University - New Jersey, USA. 2002.
• M.Sc. Computer Science. Maharishi Internacional University (Iowa, USA). 1986.

Experiencia profesional y actividades presentes

• Jefe del departamento académico de Informática y Sistemas. Universidad Eafit. 2006 a la fecha.
• Profesor, Director del Laboratorio de Realidad Virtual. Universidad Eafit - Medellín, Colombia. 1996 – 1997 y 2002 a la fecha.
• Asistente de Investigación. Universidad de Rutgers. 1998 – 2001.
• Jefe del Departamento de Ingeniería de Sistemas, Universidad Eafit. 1996 – 1997.
• Jefe del Departamento de Investigación y Desarrollo. MECOsoft. 1992 – 1996.
• Jefe del Departamento de Servicios Profesionales. UNISYS - Medellín. 1990 – 1992
• Jefe de Sistemas. Aerolíneas SAM. 1988 – 1990.
• Soporte Técnico. Suramericana de Seguros.1984 – 1988.
• Programador. Microtek Corporation. 1986 – 1987.

Estudiantes de Posgrado

• Christian Andrés Díaz León.
Tesis Maestría: Diseño y Construcción de un Ambiente Virtual Enfocado a la Simulación de Cirugía Laparoscópica, 2009.
• Hamilton Andrés Hernández Alvarado.
Tesis Maestría: WeSketch: A 3D Real Time Collaborative Virtual Environment that Improves the GUI Sketching Task, 2010.
• Oscar Alonso Vélez Rojas.
Tesis Maestría: Construcción y Validación de un Juego Educativo para el Aprendizaje del Idioma Inglés como Lengua Extrangera, 2011.
• Juan Carlos Monroy Osorio.
Tesis Maestría: Ambientes Virtuales Inmersivos en 3D con Énfasis Educativo: Una Propuesta para el Proceso de Creación y Nuevas Heurísticas de Evaluación, 2012.
• Luis Fernando Vélez Rojas.
Tesis Maestría: Diseño de un Juego para la Enseñanza del Inglés: "Brock MIR P.I Adventure", 2012.
• Ricardo de Jesús Botero Tabares.
Tesis Maestría: La Lúdica de Juegos en el Aprendizaje de la Programación Orientada a Objetos: Un Prototipo en C#, 2012.
• Diego Mauricio Torres.
Tesis Maestría: A New Way For Learning Languages Through Virtual Immersive Environments, 2012.
• María Lili Villegas Ramírez (co-asesoría con William Joseph Giarldo).
Tesis Maestría: Metodología para el Desarrollo de Sistemas Interactivos Usables CIAF+HCI a partir de la Integracio´n de CIAF y MPIu+a, 2012.
• Juan Fernando Herrera Jaramillo.
Tesis Maestría: Casos de estudio de realidad virtual y realidad aumentada en educación, 2013.
• Maritza Torres Barrero.
Tesis Maestría: eBlindMail: Interfaz de Usuario para Acceso al Correo Electrónico Dirigido a Personas Invidentes, 2013.
• Edwin Andrey Duque Loaiza.
Tesis Maestría: Diseño de interfaz de usuario natural para la reducción de la curva de aprendizaje requerida por usuarios adultos y personas con baja alfabetización digital al momento de solicitar una cita médica, 2014.
• Juan Gonzalo Cárcamo.
Tesis Maestría: Visualización colaborativa y realidad virtual en proyectos de construcción, 2014.
• Guillermo León Carmona González.
Tesis Maestría: Exploración en el Desarrollo, Implementación y Evaluación de un Juego Serio para el Curso Control de Operaciones, 2014.
• Oscar Alonso Vanegas Olarte.
Tesis Maestría: Experiencia en Televisión Interactiva para asimilar moralejas en niños de 3 a 5 años, 2014.
• Daniel Fernando Orozco Morales (co-asesoría con William Joseph Giarldo).
Tesis Maestría: Especificación de un metamodelo para apoyar y extender la propuesta TD–MBUID, 2014.
• Christian Andrés Díaz León.
Tesis de Doctorado: Manejando la Heterogeneidad en Simuladores Quirúrgicos Virtuales Colaborativos, 2014.

Publicaciones Recientes

" Adaptive Architecture to Support Context-Aware Collaborative Networked Virtual Surgical Simulators (CNVSS) " . C. Diaz, H. Trefftz, L. Quintero, D. Acosta and S. Srivastava. En Lectures Notes in Computer Science: Virtual, Augmented and Mixed Reality, Volumen 8526, pp. 277-286 (2014).
" Adequacy of An Inmersive Environment as a Teaching-Learning Tool Applying Experimental 3D Limen Method. " . Torres, D. and Trefftz, H. (2014).
" Experiencia en Televisión Interactiva para Asimilar Moralejas en Niños de 3 a 5 Años. " . Vanegas, O. y Trefftz H. En Memorias del XV Encuentro Internacional Virtual Educa Perú 2014, pp. 1 - 20 (2014).
" Collaborative Networked Virtual Surgical Simulators (CNVSS): Factors Affecting Collaborative Performance " . C. Diaz, H. Trefftz, L. Quintero, D. Acosta and S. Srivastava. In Presence: Teleoperators and Virtual Environments, Vol. 22, No. 1, pp. 54 - 66 (2013).
" Evaluation of Various Strategies to Improve the Training of a Brain Computer Interface System " . L. Jiménez, A. Velásquez and H. Trefftz. In Proceedings of Conference in Modelling, Identification and Control (2013).
" Propuesta de un juego serio de apoyo al curso de programación de producción " . G. Carmona, H. Trefftz. In Proceedings of 10th Latin American and Caribbean Conference for Engineering and Technology (2012).
" An Immersive Virtual Reality Training System for Mechanical Assembly " . A. Peniche, C. Diaz, H. Trefftz and G. Paramo. In Proceedings of the 4th International Conference on Manufacturing Engineering, Quality and Production Systems (MEQAPS '11).
" Parallelizing AES on Multicores and GPUS " . J. Ortega, H. Trefftz and C. Trefftz. In Proceedings of IEEE International Conference on Electro/Information Technology, eit 2011, Mankato, MN, USA.
" WeSketch: A 3D Real Time Collaborative Virtual Environment that Improves the GUI Sketching Task " . H. Hernandez and H. Trefftz. In Proceedings of 8th International Conference on Information Technology : New Generations ITNG 2011 April 11-13, 2011, Las Vegas, Nevada, USA.
" Design and Implementation of a Low-Cost Projected Virtual Reality System to Support Learning Processes " . R. Gómez, H. Trefftz. HCI International 2011 Posters’ Extended Abstracts, Communications in Computer and Information Science, Stephanidis, Constantine, Springer Berlin Heidelberg, isbn 978-3-642-22095-1, p 107-111, V 174, 2011.
" General algorithms for laparoscopic surgical simulators " . C. Diaz, H. Trefftz, J. Bernal, S. Eliuk. Revista Ingeniería Biomédica, ISSN 1909-9762, volume 4, issue 8, july-december 2010, págs. 57-70 Escuela de Ingeniería de Antioquia-Universidad CES, Medellín, Colombia.
" Simulating Soft Tissue using GPU approach of the Mass-Spring Model " . C. Diaz, S. Eliuk, H. Trefftz and P. Boulanger. In 3IA ‘2010 International Conference on Computer Graphics and Artificial Intelligence, Mayo 2010.
" Simulating Soft Tissue using GPU approach of the Mass-Spring Model " . C. Diaz, S. Eliuk and H. Trefftz. Proceedings of Virtual Reality Conference IEEE 2010, pp. 261--262, ISSN: 1087-8270.
" Asignación dinámica de servidores en ambientes virtuales, usando "octrees" para la partición dinámica del espacio " . A. Restrepo, A. Montoya and H. Trefftz In Avances en Sistemas e Informática, vol. 6, núm. 2, septiembre, 2009, pp. 1-4.
" Development of a Surgical Simulator for Training Laparoscopic Procedures " . C.A. Diaz, D. Posada, H. Trefftz, J. Bernal. In International Journal of Education and Information Technologies, Volume 2, Issue 1, 2008, pp. 95-103.
" Development of a Physical Interface to Interact with a Virtual Laparoscopic Environment " . D. Posada, C.A. Diaz, H. Trefftz, J. Bernal. In Proceedings of the Communications and Information Technology 2008 Marathon Beach, Attica, June 1-3, 2008.
" Ensenyanza Remota de Conceptos Anatomicos y Funcionales del Sistema Musculo-Esqueletico (Remote teaching of anatomical and functional concepts of the muscle-skeleton system) " . C.A. Diaz, H. Trefftz, F. Pineda. In Proceedings of the IV Latin American Congress on Biomedical Engineering (CLAIB200) Co-Sponsored by: Institute of Electrical & Electronics Engineers (IEEE) Margarita Island, Venezuela, September 24 - 28, 2007.
" Remote Collaboration with Augmented and Virtual Reality Interfaces " . L.E. Cifuentes, E. Berrio, D.E. Newball, H. Trefftz. Published in Proceedings of the The 2007 World Congress in Computer Science, Computer Engineering and Applied Computing (WorldComp 07) Las Vegas, Nevada, USA. June 25-28, 2007.
" Supporting the Learning Process in the Classroom Using 3D Collaboration on Mobile Devices " . J. Trefftz, O. Gómez, P.V. Esteban, J. Trujillo, E. Montoya. Published in the IADIS International Journal On www/Internet December 2006. Vol.4 Issue 2. ISSN 1645-7641.
" Collaborative Virtual Environments for Teaching Physics " . F. Giraldo, A.M. Jimenez, P.V. Esteban, H. Trefftz In Proceedings of the International Joint Conferences on Computer, Information, and Systems Sciences, and Engineering (CISSE 2006) Co-Sponsored by: Institute of Electrical & Electronics Engineers (IEEE) University of Bridgeport, December 4 - 8, 2006.
" Supporting the Learning Process in the Classroom using 3D Collaboration on Mobile Devices " . H. Trefftz, O. Gomez, P.V. Esteban, J. Truillo, E. Montoya In Proceedings of the IADIS International Conference Mobile Learning 2006 Dublin, Ireland, July 14 - 16, 2006.
" Collaborative and Distributed Augmented Reality in Teaching Multi-Variate Calculus " . C. Orozco, P. V. Esteban, H. Trefftz. In Proceedings of the IASTED International Conference on Web based Education (WBE 2006) Puerto Vallarta, Mexico, January 23 - 25, 2006.
" Telepresence Support for Synchronous Distance Education " . J. Restrepo and H. Trefftz In proceedings of the ACM Symposium on Virtual Reality Software and Technology (VRST 2005) Monterey, California, November 7 - 9, 2005.
" Reconstruccion Virtual del Mito Embera de la Creacion del Agua Utilizando Agentes Autonomos " . A. Quiroz, S. Velez, J. Restrepo, H. Trefftz, J.D. Velasquez In Revista Universidad Eafit. Vol. 41 Num 140. October, November, December, 2005. pp 58 - 74.
" Combinatory Multicast for Differentiated Data Transmission in Distributed Virtual Environments " . A. Quiroz, H. Trefftz. In proceedings of the IASTED International Conference on Computer Graphics and Imaging (CGIM 2004) Kawai, Hawaii, August 15 - 17, 2004.
" Adaptive handling of Bandwidth Heterogeneity in Collaborative Virtual Environments " . M. A. Ruiz, J. I. Giraldo, H. Trefftz. In proceedings of the International Conference on Telecommunications and Computer Networks (IADAT-tcn 2004) San Sebastian, December 1 - 3, 2004.
" Augmented Reality: A space for the understanding of Multi-Variate Calculus. " . P. Esteban, J. E. Jaramillo, N. Alvarez, J. Restrepo, H. Trefftz. In proceedings of the International Conference on Education (IADAT-e 2004) Bilbao, Spain, July 7 - 9, 2004.
" Telepresence for Distance Eduaction: Lessons Learned. " . A. Agudelo, L. Escobar, J. Restrepo, C. Zea, H. Trefftz. In proceedings of the International Conference on Education (IADAT-e 2004) Bilbao, Spain, July 7 - 9, 2004.
" A Collaborative Tool for Synchronous Distance Education. " . A. Agudelo, L. Escobar, J. Restrepo, A. Quiroz, H. Trefftz. In proceedings of the The 7th IASTED International Conference on COMPUTERS AND ADVANCED TECHNOLOGY IN EDUCATION (CATE 2004) Kawai, Hawaii, August 16 - 18, 2004.
" Implementacion de una topologia hibrida para el manejo de colisiones en un ambiente de Realidad Virtual (Implementation of a hybrid topology for the handling of collisions in virtual environments) " . D. Alvarez, H. Trefftz. In Revista Universidad Eafit. Vol. 14 Num 136. November, December, 2004.
" Telepresence in Synchronous Distance Education Sessions " . L. Escobar, E. Rendon, J. Restrepo, E. Montoya, C. Zea, H. Trefftz In proceedings of the Second International Conference on Multimedia and ICTs in Education (M-ICTE 2003) ,pp 1070-1074, Badajoz, Spain, December 3-6, 2003.
" Augmented Reality for Teaching Multi-Variate Calculus " . N. Alvarez, J. E. Jaramillo, J. Restrepo, H. Trefftz, P. Esteban In proceedings of the Second International Conference on Multimedia and ICTs in Education (M-ICTE 2003) ,pp 1271-1275, Badajoz, Spain, December 3-6, 2003.
" Area of Interest Management by Grid-Based Discrete Aura Approximations for Distributed Virtual Environments " . Juan E. Jaramillo, Lina Escobar, Helmuth Trefftz In proceedings of the 6th Symposium on Virtual Reality (SVR 2003) ,pp 342-353, Ribeirao Preto, SP - Brazil, October 15-18, 2003.
" Networked Virtual Environments " . Helmuth Trefftz Tutorial in 6th IASTED International Conference on COMPUTERS, GRAPHICS, AND IMAGING (CGIM 2003) Honolulu, Hawaii, August 13-15, 2003.
" Dynamic Server Allocation in Virtual Environments, Using Quadtrees for Dynamic Space Partition " . A. Restrepo, A. Montoya and H. Trefftz In proceedings of IASTED Computer Science and Technology (CST 2003) , pp 364 - 368, Cancún, México, May 19-21, 2003.
" Agents as Tutors in Augmented Reality " . N. Álvarez, H. Trefftz. In proceedings of IASTED Computer Science and Technology (CST 2003) , pp 249 - 252, Cancún, México, May 19-21, 2003.
" Achieving Object Persistence In An Augmented Reality Indoor Environment " . M. D. Gutiérrez, A. M. Márquez, H. Trefftz. In proceedings of IASTED Computer Science and Technology (CST 2003) , pp 259 - 263, Cancún, México, May 19-21, 2003.
"Handling Heterogeneity in Networked Virtual Environments" H. Trefftz, I. Marsic, M. Zyda. In Presence: Teleoperators and Virtual Environments, Volume 12, Number 1, pp 37-51, February 2003.
• "Observations about an Approximate Algorithm for the Point Robot Motion Planning Problem".  C. Trefftz, H. Trefftz.  In Proceedings of the XXII International Conference of the Chilean Computer Science Society.  Copiapó, Atacama, Chile, Novembre 6 - 8, 2002, pp 52 - 55.
"Handling Heterogeneity in Networked Virtual Environments" H. Trefftz, I. Marsic, M. Zyda. In Proceedings of the IEEE Virtual Reality Conference 2002, Orlando, Florida, March 24 - 28, 2002, pp 7 - 14.
"Message Caching for Global and Local Resource Optimization in Shared Virtual Environments" H. Trefftz, I. Marsic. In Virtual Reality Software & Technology VRST 2000 , Seoul, Korea, October 22 - 25, 2000, pp 97 - 102.
"Local and Global Impact of Message Caching in Shared Virtual Environments" H. Trefftz, I. Marsic. In Proceedings of the IASTED International Conference on Computer Graphics and Imaging 2000 (CGIM 2000) Las Vegas, NV, November 19-23, 2000, pp 8 - 13.
"Heteregeneous Collaboration Using XML" I. Marsic, A. Krebs, H. Trefftz, B. Dorohonceanu, M. Tremaine. Submitted to Computer Supported Cooperative Work CSCW 2000 , Philadelphia, Pennsylvania, December 2 - 6, 2000.
"Sharing Viewpoints in Collaborative Virtual Environments" S. Valin, A. Francu, H. Trefftz, I. Marsic. In Proceedings of the 34th Hawaii International Conference on System Sciences (HICSS-34)
"3-D Tracking Calibration of a Polhemus Long Ranger Used with the Baron Barco Workbench" H. Trefftz, G. Burdea. Technical Report CAIP-TR-243. Center for Advanced Information Processing - Rutgers University.
"A Heuristic for the Orthogonal Polygon Art Gallery Problem" C. Trefftz, H. Trefftz, in Eighteenth IASTED International Conference APPLIED INFORMATICS , Innsbruck, Austria, February 14 - 17, 2000.
• "Dexterous Force Feedback in 2-D and 3-D Multimedia" H. Trefftz, G. Popescu, B. Sletterink, G. Burdea. Submitted to IEEE Transactions on Multimedia. August 1999.
• "Multimodal Interaction Modeling". V. Popescu, G. Burdea, H. Trefftz. Chapter 25 in Handbook of Virtual Environment Technology. K. Stanney, Editor.  Lawrence Erlbaum Associates, Mahwah, New Jersey, 2002.
• "Virtual Reality and Distance Learning in Colombia" H. Trefftz, C. Correa, M. A. Gonzalez, J. Restrepo, C. Trefftz, IASTED International Conference COMPUTER GRAPHICS AND IMAGING , Halifax, Nova Scotia - Canada, June 1 - 3, 1998.
"Distance Education and Distributed Virtual Environments" , H. Trefftz, C. Correa, M. A. Gonzalez, G. Imbeau, J. Restrepo, M. I. Velez, C. Trefftz, The Virtual Campus: Trends for Higher Education and Training , Madrid, Spain, November 27 - 29, 1997.

Materias y Cursos

Materias de pregrado que dicta actualmente:
• Lenguajes Formales y Compiladores.
• Fundamentos de Programación.
• Computación Gráfica.
• Realidad Virtual Distribuida.

Materias de posgrado que dicta actualmente:
• Interfaces Humano Computador.

Materias que ha dictado anteriormente
• Compiladores.
• Arquitectura del Computador.

Contacto:

htrefftz at-sign eafit.edu.co