Coding of range-gates with ambiguous sequences for extended three-dimensional imaging

Martin Laurenzis; Emmanuel Bacher; Nicolas Metzger; Stéphane Schertzer; Frank Christnacher

doi:10.1117/12.974471

19 November 2012 Coding of range-gates with ambiguous sequences for extended three-dimensional imaging

Martin Laurenzis, Emmanuel Bacher, Nicolas Metzger, Stéphane Schertzer, Frank Christnacher

Proceedings Volume 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI; 854204 (2012) https://doi.org/10.1117/12.974471
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

Abstract

In the present publication we introduce coding sequences with quasi-ambiguous combinations for 3D imaging. With this extended imaging method it is possible to apply 15 combinations of gray level for the coding of range- gates in 3 images. Nevertheless, it is demonstrated that a maximum number of only 13 combinations can be connected to sequences. In this publication, the impact of quasi-ambiguous sequences on the 3D depth mapping capabilities is studied and discussed. An analysis of simulated image sequences was performed with different portion of noise. At low noise levels it is shown that the quasi-ambiguous coding sequences can enlarge the depth mapping range. But misinterpretation of data reduces dramatically the range accuracy at high noise levels. Therefore, 3D imaging profits from the application of quasi-ambiguous sequences only at low noise level.

Citation Download Citation

Martin Laurenzis, Emmanuel Bacher, Nicolas Metzger, Stéphane Schertzer, and Frank Christnacher "Coding of range-gates with ambiguous sequences for extended three-dimensional imaging", Proc. SPIE 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, 854204 (19 November 2012); https://doi.org/10.1117/12.974471

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