Generation and evaluation of hyperspectral 3D surface models based on a structured light system with hyperspectral snapshot mosaic sensors

Stefan Heist; Chen Zhang; Karl Reichwald; Peter Kühmstedt; Gunther Notni

doi:10.1117/12.2304790

14 May 2018 Generation and evaluation of hyperspectral 3D surface models based on a structured light system with hyperspectral snapshot mosaic sensors

Stefan Heist, Chen Zhang, Karl Reichwald, Peter Kühmstedt, Gunther Notni

Author Affiliations +

Proceedings Volume 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII; 106670F (2018) https://doi.org/10.1117/12.2304790
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

Recently, a number of hyperspectral cameras with novel image sensors that are equipped with a monolithic pixel-by-pixel filter array have been introduced onto the market. In this contribution, we describe the design and implementation of a structured light 3D sensor consisting of two such snapshot mosaic sensors, each with 25 different spectral bands between 600 and 975 nm, and a broadband GOBO projector that images varying, aperiodic sinusoidal patterns into the measurement volume. We characterize the system with regard to accuracy, and we present measurements of different objects illustrating the benefits of hyperspectral 3D sensors.

Citation Download Citation

Stefan Heist, Chen Zhang, Karl Reichwald, Peter Kühmstedt, and Gunther Notni "Generation and evaluation of hyperspectral 3D surface models based on a structured light system with hyperspectral snapshot mosaic sensors", Proc. SPIE 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII, 106670F (14 May 2018); https://doi.org/10.1117/12.2304790

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