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Three-dimensional vision with dual acousto-optic deflection encoding.

Xiang Peng·Jindong Tian·Peng Zhang·Linbin Wei·Wenjie Qiu·Enbang Li·Dawei Zhang
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Abstract

We report a new method of sensing a three-dimensional (3D) object surface with an arbitrary geometric shape. In this approach, the first-order beams diffracted from two acousto-optic deflectors (AODs) interfere with each other to form a spatial carrier that is used to encode the depth information from the 3D object surface. A direct digital synthesizer is utilized to control two AODs to generate sequentially spatial carriers with different spatial frequencies so that a modified temporal phase-unwrapping technique can be applied for decoding the shape information of the test surface. Preliminary experimental results are presented to demonstrate the effectiveness of this method.

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AlgorithmsArtificial IntelligenceImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalInformation Storage and RetrievalNumerical Analysis, Computer-AssistedPattern Recognition, AutomatedRefractometrySignal Processing, Computer-AssistedTomography, Optical CoherenceEvaluation StudyJournal Article

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Xiang Peng, Jindong Tian, Peng Zhang, Linbin Wei, Wenjie Qiu, Enbang Li, Dawei Zhang. 2005-08-01. Three-dimensional vision with dual acousto-optic deflection encoding.. https://doi.org/10.1364/ol.30.001965

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