title: Interferometric methods with enhanced sensitivity by optical/digital fringe multiplication.
abstract: The equations of the optical/digital fringe multiplication method are derived for a general periodic distribution of intensity versus phase (or fringe order). The method is demonstrated by a shadow moiré experiment, which ideally produces fringe patterns with a triangular intensity distribution. Advantages and disadvantages of the optical/digital fringe multiplication method are discussed in comparison with other image-processing methods.
authors.forename: B
authors.initials: B
authors.lastname: Han