Vieira, Rvan den Bergh, Fvan Wyk, BJ2009-02-122009-02-122008-11Vieira, R, van den Bergh, F and van Wyk, BJ. 2008. Fiducial-based monocular 3D displacement measurement of breakwater armour unit models. 19th Annual Symposium of the Pattern Recognition Association of South Africa (PRASA 2008), Cape Town, South Africa, 27-28 November, pp 97-1029780799223507http://hdl.handle.net/10204/2986PRASA 2008This paper presents a fiducial-based approach to monitoring the movement of breakwater armour units in a model hall environment. Target symbols with known dimensions are attached to the physical models, allowing the recovery of three-dimensional positional information using only a single camera. The before-change and after-change fiducial positions are matched optimally, allowing the recovery of three-dimensional movement vectors representing the shifts in the positions of the physical models. Experimental results show that sub-millimeter accuracies are possible using 6-megapixel images of an A4-scale scene.enBreakwater armourFiducial-basedThree-dimensional movement vectorsConference PresentationVieira, R., van den Bergh, F., & van Wyk, B. (2008). Fiducial-based monocular 3D displacement measurement of breakwater armour unit models. PRASA 2008. http://hdl.handle.net/10204/2986Vieira, R, F van den Bergh, and BJ van Wyk. "Fiducial-based monocular 3D displacement measurement of breakwater armour unit models." (2008): http://hdl.handle.net/10204/2986Vieira R, van den Bergh F, van Wyk B, Fiducial-based monocular 3D displacement measurement of breakwater armour unit models; PRASA 2008; 2008. http://hdl.handle.net/10204/2986 .TY - Conference Presentation AU - Vieira, R AU - van den Bergh, F AU - van Wyk, BJ AB - This paper presents a fiducial-based approach to monitoring the movement of breakwater armour units in a model hall environment. Target symbols with known dimensions are attached to the physical models, allowing the recovery of three-dimensional positional information using only a single camera. The before-change and after-change fiducial positions are matched optimally, allowing the recovery of three-dimensional movement vectors representing the shifts in the positions of the physical models. Experimental results show that sub-millimeter accuracies are possible using 6-megapixel images of an A4-scale scene. DA - 2008-11 DB - ResearchSpace DP - CSIR KW - Breakwater armour KW - Fiducial-based KW - Three-dimensional movement vectors LK - https://researchspace.csir.co.za PY - 2008 SM - 9780799223507 T1 - Fiducial-based monocular 3D displacement measurement of breakwater armour unit models TI - Fiducial-based monocular 3D displacement measurement of breakwater armour unit models UR - http://hdl.handle.net/10204/2986 ER -