title: Robust phase unwrapping for phase images in Fourier domain Doppler optical coherence tomography.
abstract: To solve the 2 ? phase ambiguity for phase-resolved Doppler images in Doppler optical coherence tomography, we present a modified network programming technique for the first time to the best of our knowledge. The proposed method assumes that error of the discrete derivatives between unwrapped phase image and wrapped phase image can be arbitrary values instead of integer-multiple of 2 ? , which makes the real-phase restoration accurate and robust against noise. We compared our proposed method with the network programming method. Parameters including root-mean-square-error and noise amplification degree were adopted for comparison. The experimental study on simulated images, phantom, and real-vessel OCT images were performed. The proposed method consistently achieves optimal results.
authors.forename: Shaoyan
authors.initials: S
authors.lastname: Xia
authors.affiliation: Beijing Institute of Technology, School of Optoelectronics, Beijing, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Beijing Institute of Technology, School of Optoelectronics, Beijing, China.
authors.forename: Shizhao
authors.initials: S
authors.lastname: Peng
authors.affiliation: Beijing Institute of Technology, School of Optoelectronics, Beijing, China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Beijing Institute of Technology, School of Optoelectronics, Beijing, China.
authors.forename: Xiaodi
authors.initials: X
authors.lastname: Tan
mesh_terms: D001808:Blood Vessels / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D012984:Software; D041623:Tomography, Optical Coherence