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Remote Sens. 2011, 3(11), 2461-2472; doi:10.3390/rs3112461
Article

Figures of Merit for Indirect Time-of-Flight 3D Cameras: Definition and Experimental Evaluation

*  and
Center for Materials and Microsystems, Fondazione Bruno Kessler, via Sommarive 18, I-38123 Povo (TN), Italy
* Author to whom correspondence should be addressed.
Received: 26 September 2011 / Revised: 4 November 2011 / Accepted: 8 November 2011 / Published: 17 November 2011
(This article belongs to the Special Issue Time-of-Flight Range-Imaging Cameras)
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Abstract

Indirect Time-of-Flight (I-TOF) cameras can be implemented in a number of ways, each with specific characteristics and performances. In this paper a comprehensive analysis of the implementation possibilities is developed in order to model the main performances with a high level of abstraction. After the extraction of the main characteristics for the high-level model, several figures of merit (FoM) are defined with the purpose of obtaining a common metric: noise equivalent distance, correlated and uncorrelated power responsivity, and background light rejection ratio. The obtained FoMs can be employed for the comparison of different implementations of range cameras based on the I-TOF method: specifically, they are applied for several different sensors developed by the authors in order to compare their performances.
Keywords: indirect time-of-flight; image sensor; 3D camera; figure of merit indirect time-of-flight; image sensor; 3D camera; figure of merit
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Perenzoni, M.; Stoppa, D. Figures of Merit for Indirect Time-of-Flight 3D Cameras: Definition and Experimental Evaluation. Remote Sens. 2011, 3, 2461-2472.

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