Kamil Kalinowski

Digital in-line holographic microscopy enables label-free tracking and metrology, but achieving nanometric sub-pixel displacement accuracy over a wide capture range remains challenging. Frequency-domain registration based on the discrete Fourier transform (DFT) is globally stable and tolerant to large shifts, yet it suffers from sub-pixel quantization and interpolation artifacts that limit precision near zero displacement.

Original Article Marcelina Sobczak, Corresponding Author marcelina.sobczak@pwr.edu.pl orcid.org/0000-0003-0694-3547 Department of Optics and Photonics, Wroclaw University of Science and Technology, Wrocław, Poland Correspondence: Marcelina Sobczak E-mail address: marcelina.sobczak@pwr.edu.pl Contribution: Conceptualization (equal), Data curation (lead), Formal analysis (equal), ​Investigation (lead), Methodology (equal), Project administration (equal), Software (supporting), Writing -...