Abstract

In this Letter, a method for shape visualization of small objects (microscopic) in the form of a hologram is presented. It consists of a standard optical set-up for small object registration (i.e., stereoscopic or biological microscope). The focus stacking technique is used to obtain a series of images with increased depth of field and on them a shape reconstruction procedure (structure from motion, SfM) is made. With use of a dense cloud of points, a sequence of parallax-related images suitable for Geola’s digital holographic printing is generated. The holographic printer produces single-parallax holographic (full three-dimensional) images of real or virtual objects.

© 2020 Chinese Laser Press

Enhancement of three-dimensional perception of numerical hologram reconstructions of real-world objects by motion and stereo

Risto Näsänen, Tristan Colomb, Yves Emery, and Thomas J. Naughton
Opt. Express 19(17) 16075-16086 (2011)

Self-registration shape measurement based on fringe projection and structure from motion

Peng Wang and Liyan Zhang
Appl. Opt. 59(35) 10986-10994 (2020)

Phase imaging flow cytometry using a focus-stack collecting microscope

Sai Siva Gorthi and Ethan Schonbrun
Opt. Lett. 37(4) 707-709 (2012)

Synthesis of computer-generated spherical hologram of real object with 360° field of view using a depth camera

Gang Li, Anh-Hoang Phan, Nam Kim, and Jae-Hyeung Park
Appl. Opt. 52(15) 3567-3575 (2013)

High-resolution 3D shape measurement with extended depth of field using fast chromatic focus stacking

Roland Ramm, Mohsen Mozaffari-Afshar, Daniel Höhne, Thomas Hilbert, Henri Speck, Siemen Kühl, Daniela Hoffmann, Sebastian Erbes, Peter Kühmstedt, Stefan Heist, and Gunther Notni
Opt. Express 30(13) 22590-22607 (2022)