June 14, 2015
June 14, 2015
June 17, 2015
26.1399.1 - 26.1399.11
Stereoscopic Visualization for Developing Visual-Spatial Skills of Construction Engineering and Management StudentsABSTRACTSpatial skill is the capacity to understand and organize the spatial relations among objects.Architectural design and construction all involve the use of spatial skills. One of the deep-seatedproblems besetting construction engineering and management (CEM) education is student’sability to visualize construction assemblies and details from drawings and specification. Thisproblem directly affects the student’s understanding of CEM core contents such as plan reading,quantity takeoff, estimating, and construction materials & methods. Thus, it is essential forstudents to develop visual-spatial skills at the early stage of CEM curriculum. Visual-spatialskills are of great importance for success in solving many tasks in real construction projects.Critical features of spatial skills in CEM education are the skills required to construct mentalmodels of building components and materials from construction drawings and specifications.The level of spatial performance can be improved through practice, training, and learning. Inthis paper, we propose using portable stereoscopic 3D visualization as a tool for students topractice visual-spatial skills in CEM education. Stereoscopic 3D visualization uses thecharacteristics of human binocular vision to create the illusion of the astonishingly vivid depthperception, making objects appear to be in front of or behind the screen. This technique relies onpresenting a stereo pair of views created by simulating the presence of two camera viewscorresponding to the viewpoints of two human eyes, which are an independent pair of co-timed2D images, giving the left and right view. Computer-generated content, using AutoCAD, istypically considered the easiest method of stereo generation. In the process of stereoscopic 3Dvisualization, it is required to (1) segment the image, (2) calculate and assign relative depth toeach object in the image, (3) locate occlusion areas and fill them with suitable portions of otherobjects, and (4) present each view of the scene exclusively to each corresponding eye of theperceiver. This process creates depth and occlusion maps suitable for integration with imagery.This paper mainly describes how to develop and use stereoscopic 3D visualization in a portablecomputing system so as to help students build a mental model of construction assemblies anddetails from 2D drawings.
Lee, N., & Park, S. (2015, June), Stereoscopic Visualization for Improving Student Spatial Skills in Construction Engineering and Management Education Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.24736
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