A study of projections for key point based registration of panoramic terrestrial 3D laser scan

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Abstract

This paper surveys state-of-the-art image features and descriptors for the task of 3D scan registration based on panoramic reflectance images. As modern terrestrial laser scanners digitize their environment in a spherical way, the sphere has to be projected to a two-dimensional image. To this end, we evaluate the equirectangular, the cylindrical, the Mercator, the rectilinear, the Pannini, the stereographic, and the z-axis projection. We show that the Mercator and the Pannini projection outperform the other projection methods.

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Houshiar, H., Elseberg, J., Borrmann, D., & Nüchter, A. (2015). A study of projections for key point based registration of panoramic terrestrial 3D laser scan. Geo-Spatial Information Science, 18(1), 11–31. https://doi.org/10.1080/10095020.2015.1017913

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