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Digital Holography Using Spectral Estimation Technique

By: Matoba, O.; Kubota, T.; Ura, S.; Nishio, K.; Xia, P.; Kakue, T.; Tahara, T.; Shimozato, Y.; Ito, Y.; Awatsuji, Y.;

2014 / IEEE


This item from - IEEE Journal - Photonics and Electrooptics - We propose a technique capable of obtaining spectral information and three-dimensional information of objects. This technique is based on digital holography and spectral estimation technique. In this technique, multiple lasers operating at different wavelengths, such as red, green, and blue, are used to record the complex amplitude of the object in digital holography, and multiple reconstructed monochrome images can be obtained by each wavelength. Spectral estimation technique is used to estimate the spectral reflectance distribution of the object from the multiple reconstructed monochrome images. Through the spectral estimation technique, the spectral reflectance distribution of object can be obtained. The effectiveness of the proposed method was confirmed by a numerical simulation and an experiment.