Digital Holography for Recording and Reconstructing 3D Information and Optical Scanning Holography (OSH): A Single Pixel Approach to Real Time Digital Holographic Recording
by ,
Seminar Room
INPP, NCSR Demokritos
Digital Holography for Recording and Reconstructing 3D Information
Digital holography (DH) offers a unique approach to recording and reconstructing three-dimensional (3D) optical information. Unlike conventional imaging methods, DH records both the amplitude and phase of light, allowing fine structural details and depth information to be preserved and numerically reconstructed. These capabilities make DH valuable not only for 3D imaging and optical metrology, but also for cultural heritage preservation, digital archiving, biomedical imaging, and other interdisciplinary applications. Because holographic techniques are non‑contact and non‑destructive, they are well suited for recording delicate surface structures and detecting extremely small deformations.
This talk will introduce the basic principles of holography and digital holography, followed by several examples of holographic recording and reconstruction. Current challenges, including computational complexity, data volume, and limitations in holographic display, will also be discussed. The talk will conclude with a brief exploration of what digital holography could offer to digital humanities and related fields in the future.
Optical Scanning Holography (OSH): A Single‑Pixel Approach to Real‑Time Digital Holographic Recording
I will introduce optical scanning holography (OSH), a single‑pixel, real‑time digital holographic recording technique. The talk will conclude by highlighting a diverse range of current and emerging OSH applications, from fluorescence and phase‑contrast microscopy to the acquisition of small 3D sculpture holograms. I will also consider prospective intersections with the digital humanities, particularly for the preservation and visualization of cultural heritage, including paintings and murals, without the stitching requirements characteristic of conventional digital holography.
Videoconference via https://us02web.zoom.us/j/87583276781