AI Article Synopsis
- A new superresolution method is introduced for analyzing interference fringes using four-step phase-shifting digital holography.
- The technique derives a complex amplitude distribution from holograms by utilizing two pixels for phase-shifting without needing interpolation.
- It extends the available space bandwidth of an image sensor to enhance the angular spectrum distribution of the object wave through Fourier transforms.
Article Abstract
A superresolution method for interference fringes obtained by parallel four-step phase-shifting digital holography is proposed. A complex amplitude distribution of an object wave is derived from a recorded hologram by parallel phase-shifting interferometry using two pixels without any interpolation procedures. Multiple distributions are derived by changing one of the two pixels when conducting phase-shifting interferometry. The angular spectrum distribution of the object wave is obtained by both the Fourier transforms and synthesis of the spectrum distribution from the Fourier-transformed images in the spatial frequency domain. Available space bandwidth is extended to half of that of an image sensor.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.39.001673 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!