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Authors: W. van der Tempel, D. Van Nieuwenhove, R. Grootjans, Ljubomir Jovanov, J. Roels, Aleksandra Pizurica, D. Van Thourhout, R. Baets, Wilfried Philips, Maarten Kuijk
Title: State-of-the-art modulator approaches for Continuous Time-of-Flight range finding
Format: International Conference Presentation
Publication date: 12/2007
Journal/Conference/Book: IEEE/LEOS Symposium Benelux Chapter Proceedings,2007
Volume(Issue): p.63-66
Location: Brussels, Belgium
Internal Reference: [N-670]
Download: Download this Publication (2.7MB) (2.7MB)

Abstract

An overview is given of different state of the art modulator approaches useable as demodulating component in Continuous Time-of-Flight range finding. The first is a spatial optical modulator which can be used in conjunction with a conventional image sensor; the second is a single bulk device combining both optical detection and modulation in the substrate. A third performs optical detection and modulation by combining fast conventional photo-detectors with subsequent analog circuitry to achieve modulation and amplification. The different design and implementation challenges are discussed and the properties of the different approaches at both sensor level and 3D-data post processing level are presented.

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