Method of removing false fringes in image obtained With Optical coherence tomography

Abstract

The images obtained with Optical coherence tomography (OCT) are often affected by the false fringes due to the inaccurate demodulation frequency used to demodulate the measured OCT signal. An empirical mode decomposition (EMD) method was proposed to remove the fringes contained in the demodulated OCT signal. Compared with the traditional filter technique, the EMD-based method has the advantage of successfully removing the false fringes as well as retaining the detailed structure of the image, making it possible to differentiate between the different components of the tissue.