Biomedical subjects

Ricardo Legarda-Sáenz

Publications and source records attributed to Ricardo Legarda-Sáenz.

2 recordsLinked to original sources

PubMed2002

Improvement of the regularized phase tracking technique for the processing of nonnormalized fringe patterns.

One of the powerful approaches to demodulate a single fringe pattern is the regularized phase tracking (RPT) technique. Here, a new improvement in the RPT technique is presented. This new improvement consists in the addition of one term that models the fringe-pattern modulation. With this new term, the RPT technique can be used for the demodulation of nonnormalized fringe patterns. The performance of the improved RPT technique is shown on examples of various fringe patterns.

Journal Article↗

PubMed2002

Quadratic cost functional for wave-front reconstruction.

A quadratic cost functional for reconstruction of a high-resolution wave front from a coarse wave front is presented. The functional uses as data the position and the direction of the coarse wave front that had previously been computed with a ray-tracing method. This functional uses an optical relationship between the ray information and the wave front's shape to reconstruct a high-density wave front. The performance of the proposed functional is illustrated by reconstruction of complicated wave fronts for which this functional has an accuracy that is superior to that of conventional interpolation methods.

Journal Article↗