Computer Science – Robotics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1767..443f&link_type=abstract
Proc. SPIE Vol. 1767, p. 443-450, Inverse Problems in Scattering and Imaging, Michael A. Fiddy; Ed.
Computer Science
Robotics
Scientific paper
A new method has been recently proposed which aims at measuring the relative location of point light emitters from 2D or 3D diffraction patterns; this typical inverse problem of interpretation of the scattering field can be solved with sub-pixel accuracy. It is based on the retrieval of the Fourier phase versus frequency dependence of the calculated Optical Transfer Function of the optical system. The method is favorably compared to the classical centroid method, especially in the case of locally oscillating fields. Computer implementation is proposed which allows fast sub-pixel evaluation of the z coordinates of a collection of numerous point sources. This method applies to various situations such as robotics, precision tracking, astronomy or more specifically sub-micron ranging of nanometric sized scattering particles in a microscope field. Details are given of how to obtain significant information and how to use numerical procedures in experimental frameworks. Evaluation of the accuracy of the method and algorithms is considered.
Castagne Michel
Fillard Jean-Pierre
Lussert Jean-Marc
No associations
LandOfFree
Point-source subpixel positioning from Fourier phase-shift retrieval does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Point-source subpixel positioning from Fourier phase-shift retrieval, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Point-source subpixel positioning from Fourier phase-shift retrieval will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1143905