Keynote Speaker
			
"D4AR – 4 Dimensional Augmented Reality – Models for Automation and Interactive Visualization of Construction Progress Monitoring"
Abstract:
Early detection of actual or potential performance deviations in field 
construction activities is critical to project management as it provides an 
opportunity to initiate proactive actions to avoid them or minimize their 
impacts. Despite the importance, current monitoring practice includes manual 
data collection and extensive data extraction, non-systematic and generic 
reporting, and visually/spatially complex representations. This talk addresses 
these challenges by introducing the underlying hypotheses and algorithms for 
automated generation of D4AR – 4D augmented reality – models for automating and 
visualizing monitoring of sustainable built environments. These models assembled 
through superimposition of 4D point clouds generated from unordered daily 
construction photo collections and 4D Building Information Models, visualize 
performance deviations and allow Architecture/Engineering/Construction 
professionals to intuitively observe problems, conduct various decision-making 
tasks, and minimize detrimental impacts of performance deviations in an 
augmented-reality environment rather than the real world which is time-consuming 
and costly. Moreover, application of D4AR models, developed with several 
challenging building construction photo collections captured under different 
lighting conditions and server occlusions, demonstrates that component-based 
tracking of progress at schedule-activity level could be automated. These models 
generate a new research paradigm by allowing researchers further develop visual 
and spatial sensing techniques to automatically track productivity, safety, 
quality, and carbon footprint of operations. 
Biographical Information:
Feniosky Peña-Mora is Dean of The Fu Foundation School of Engineering and 
Applied Science and Morris A. and Alma Shapiro Professor of Engineering at 
Columbia University. He also holds academic appointments as Professor of Civil 
Engineering and Engineering Mechanics, Professor of Earth and Environmental 
Engineering, and Professor of Computer Science. He assumed his posts at Columbia 
Engineering on July 15, 2009. He was previously the Gutgsell Endowed Professor 
in the Department of Civil and Environmental Engineering and associate provost 
at the University of Illinois at Urbana-Champaign. He had been an associate 
professor at the Massachusetts Institute of Technology (MIT) and visiting 
professor at international universities, including Ecole Polytechnique Fédérale 
de Lausanne. Dean Peña-Mora is the author or co-author of more than 100 
scholarly publications, has served as editor of several professional journals, 
is the author of an influential textbook on construction conflict resolution, 
and holds five patents. He holds numerous prestigious awards, including the 
White House Presidential Early Career Award for Scientists and Engineers, the 
National Science Foundation CAREER Award, and the Walter L. Huber Civil 
Engineering Research Prize of the American Society of Civil Engineers. In 2008, 
he was recognized with that Societyfs Computing in Civil Engineering Award for 
outstanding achievement and contribution in the use of computers in the practice 
of civil engineering. After graduating from Universidad Nacional Pedro Henríquez 
Ureña in Santo Domingo, D.R., he continued his studies at MIT, from which he 
received a masterfs degree in civil engineering and doctoral degree in civil 
engineering systems.