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Case study of virtual reconstruction of the Wkryujście Altar based on the structured light projection

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Specjalny B. , Mantiuk R.

2010

tom nr 1 (22)

163-173

In this paper we present case study of virtual reconstruction of the Wkryujście Altar, one of the greatest cultural heritage both Polish and German nations in West Pomeranian region in Poland. We analyze main strategies of recovering of the 3D shape of a physical object and recommend the structured light projection technique as the most suitable for the Altar. By illuminating the surface with images consisting of a light pattern, the correspondence between projector and camera pixels can be uniquely identified. Recovering transformations of the pattern pixel, it is possible to capture a 3-D point on the surface of an object. The structured light projection technique doesn’t require expensive hardware and satisfactory results can be achieved using off-the-shelf equipment. We built basic form of the structured light hardware setup and conducted a case study of measurement fidelity. The achieved results are presented in the paper together with discussion of using structured light projection to reconstruct cultural heritage objects.