Abstract
We propose a new analytical edge spread function (ESF) fitting model to
measure the modulation transfer function (MTF). The ESF data obtained from a
slanted-edge image are fitted to our model through the non-linear least squares
(NLLSQ) method. The differentiation of the ESF yields the line spread function
(LSF), the Fourier transform of which gives the profile of two-dimensional MTF.
Compared with the previous methods, the MTF estimate determined by our method
conforms more closely to the reference. A practical application of our MTF
measurement in degraded image restoration also validates the accuracy of our model.
© 2011 Chinese Optics Letters
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription