Projection on suitable sub-surface selected in indoor environment

Abstract

Traditional projection environments were characterized by static projectors projecting at specialized surfaces. The recent advent of pico projector-camera pair embedded into mobile devices provides flexibility to project in environments previously considered as unsuitable. One of the major challenges for such systems is to automatically select the best portion from a cluttered environment suitable for projection. In this paper we propose a scheme to select the most appropriate projection surface and then make a confined projection in the selected area. The decision for suitability is taken based upon the color homogeneity and the size of the candidate surface; while for finding the correspondence between the surface and projection contents an existing perfect map based spatial encoded pattern is suggested. By performing spatial decoding in only regions suitable for projection; the search space for spatial decoding is greatly reduced. Experiments show encouraging results. © 2013 Springer-Verlag.