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. 2013 Aug 26;13(9):11362–11384. doi: 10.3390/s130911362

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 5. — Necessity of our constraint of consistency: (a),(b) show the results with the constraint of consistency and (c),(d) show the results without the constraint of consistency.