Enhancement of Time-domain Optical Coherence Tomography Images Using Stationary Wavelet Transform

Stationary wavelet transform (SWT) was proposed to enhance time-domain optical coherence tomography (OCT) images of multilayered thin-film structures. Multi-level SWT decomposition of OCT images was conducted and the SWT detail coefficients could be employed for feature extraction of multilayered structures’ interface. The experimental results demonstrated that SWT-based technique could achieve better OCT image quality than traditional OCT imaging, making it attractive for non-medical applications.