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Panoramic reconstruction of quasi-cylindrical objects with digital holography and a conical mirror

Miguel León-Rodríguez, Juan A. Rayas, Amalia Martínez-García, Adrián Martínez-González, Alejandro Téllez-Quiñones, and Rosario Porras-Aguilar

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Abstract

In this work, we present a panoramic digital holographic system for the first time capable of obtaining 3D information of a quasi-cylindrical object by using a conical mirror. The proposed panoramic digital holographic system is able to scan the entire surface of the object to determine the amplitude and phase simultaneously. This paper demonstrates the feasibility of analyzing quasi-cylindrical objects in a short time (0.5 s) with a single camera and a minimum number of optical components. In addition, it can be applied to determine not only topographic measurement of the cylindrical surface but also measurements of radial deformations. Experimental results are presented at different magnifications, thus illustrating its capabilities and versatility.

© 2021 Optical Society of America

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Supplementary Material (2)

NameDescription
Visualization 1       Axial reconstructions of the amplitude. DH also increase the depth of focus of the system. DH permits not only measure radial topographies of quasi-cylindrical objects, but also attain information in the axial direction.
Visualization 2       the capabilities of DH may help to determine the initial radius of the objects. For example, if the tip of the object can be refocused at one end, the radius at this cross section (r) can be determined. DH also increase the depth of focus of the syst

Data Availability

Data underlying the results presented in this Letter are not publicly available but may be obtained from the authors upon reasonable request.

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