SD&A 2019: Development of a Camera Based Projection Mapping System for Non-Flat Surfaces
This presentation was delivered at the 30th annual Stereoscopic Displays and Applications conference (14-16 January 2019) held in Burlingame, CA USA. For more information see: http://stereoscopic.org
Title: Development of a Camera Based Projection Mapping System for Non-Flat Surfaces (SD&A-660)
Speaker: Andrew Woods, Curtin University (Australia)
Abstract: While most conventional projection surfaces are flat, there are many situations where the surfaces are uniquely shaped – such as the Cylinder display at the Curtin University HIVE visualisation facility. This paper describes a student project to develop a system which will automatically generate a set of warp/blend meshes for multiple projectors so that the projected output will have correct display geometry across the full projection surface. The HIVE Cylinder display consists of a 180° half-cylinder display surface with 8m diameter and 3m height. Three projectors illuminate the display surface and the display is stereoscopic capable using frame-sequential 3D and LC shutter glasses. The software works by sending a series of calibration test images to the projectors, which are photographed by a camera, processed to calculate a projection map, output as a set of warp/blend meshes, which will result in a continuous screen surface that appears to have correct geometry to an observer at a predefined location. The project has been undertaken by a group of students working on several modular components of the overall system: camera to computer interface, image processor, image generator, geometry computation, and warp/blend output.
Biography: Dr. Andrew Woods is Manager of the Curtin University HIVE Visualisation Facility and a Research Engineer at the Centre for Marine Science & Technology at Curtin University. He specializes in visualization, stereoscopic 3D imaging, 3D reconstruction, 3D cameras and displays, video electronics, underwater vehicles (ROVs), and engineering software development, with applications in offshore oil and gas, and maritime archaeology. He was the technology lead on the Sydney-Kormoran Project which surveyed the wrecks of HMAS Sydney (II) and HSK Kormoran in 2015, and has been recognized as one of Australia's Most Innovative Engineers by Engineers Australia. In 2019 he served as co-chair of Electronic Imaging, parent symposium of the SD&A conference.
© 2019, Society for Imaging Science and Technology (IS&T)