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. 2018 Jun 26;2(3):26. doi: 10.3390/vision2030026

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© 2018 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) Geometry of the physical scene. (b) Figure 7a is shown here with Figure 7b on top. Figure 7b has been resized such that the grain elevator is depicted at the same scale in both pictures.