Depth sensing using coherence mapping

Estela Valero; Vicente Micó; Zeev Zalevsky; Javier García

doi:10.1016/j.optcom.2010.04.033

Depth sensing using coherence mapping

Estela Valero, Vicente Micó, Zeev Zalevsky, Javier García

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A method for depth sensing based on sensing the visibility associated with the coherence function of a laser source is presented. The setup is based on an electronic speckle pattern interferometric (ESPI) setup, where the object depth is encoded into the amplitude of the interference pattern without the need for depth scanning. After performing phase-shifting method, the object three-dimensional (3-D) shape is reconstructed by means as a range image from the visibility of the image set of interferograms and where each gray level represents a given object depth. Experimental results validate the proposed approach for reflective diffuse objects at different measurement distances.

Original language	English
Pages (from-to)	3122-3128
Number of pages	7
Journal	Optics Communications
Volume	283
Issue number	16
DOIs	https://doi.org/10.1016/j.optcom.2010.04.033
State	Published - 15 Aug 2010

Bibliographical note

Funding Information:
Part of this work was supported by the Spanish Ministerio de Educación y Ciencia under the project FIS2007-60626 and by Instituto de la Mediana y Pequeña Industria Valenciana under the project IMIDIC/2008/52 .

Funding

Part of this work was supported by the Spanish Ministerio de Educación y Ciencia under the project FIS2007-60626 and by Instituto de la Mediana y Pequeña Industria Valenciana under the project IMIDIC/2008/52 .

Funders	Funder number
Instituto de la Mediana y Pequeña Industria Valenciana	IMIDIC/2008/52
Spanish Ministerio de Educación y Ciencia	FIS2007-60626

Keywords

Coherence coding
Phase shifting speckle interferometry
Three-dimensional mapping

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10.1016/j.optcom.2010.04.033

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title = "Depth sensing using coherence mapping",

abstract = "A method for depth sensing based on sensing the visibility associated with the coherence function of a laser source is presented. The setup is based on an electronic speckle pattern interferometric (ESPI) setup, where the object depth is encoded into the amplitude of the interference pattern without the need for depth scanning. After performing phase-shifting method, the object three-dimensional (3-D) shape is reconstructed by means as a range image from the visibility of the image set of interferograms and where each gray level represents a given object depth. Experimental results validate the proposed approach for reflective diffuse objects at different measurement distances.",

keywords = "Coherence coding, Phase shifting speckle interferometry, Three-dimensional mapping",

author = "Estela Valero and Vicente Mic{\'o} and Zeev Zalevsky and Javier Garc{\'i}a",

note = "Funding Information: Part of this work was supported by the Spanish Ministerio de Educaci{\'o}n y Ciencia under the project FIS2007-60626 and by Instituto de la Mediana y Peque{\~n}a Industria Valenciana under the project IMIDIC/2008/52 .",

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AU - Micó, Vicente

AU - Zalevsky, Zeev

AU - García, Javier

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AB - A method for depth sensing based on sensing the visibility associated with the coherence function of a laser source is presented. The setup is based on an electronic speckle pattern interferometric (ESPI) setup, where the object depth is encoded into the amplitude of the interference pattern without the need for depth scanning. After performing phase-shifting method, the object three-dimensional (3-D) shape is reconstructed by means as a range image from the visibility of the image set of interferograms and where each gray level represents a given object depth. Experimental results validate the proposed approach for reflective diffuse objects at different measurement distances.

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Depth sensing using coherence mapping

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