Open AccessMotion correction using overlapped data correlation based on a spatial-spectral encoded parallel optical coherence tomography
Author(s) -
Zhiyan Chen,
Yi Shen,
Wen Bao,
Peng Li,
Xiaoping Wang,
Zhihua Ding
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.007069
Subject(s) - optical coherence tomography , optics , coherence (philosophical gambling strategy) , computer science , motion (physics) , motion estimation , computer vision , artificial intelligence , image resolution , physics , quantum mechanics
This paper presents an approach to remove motion artifacts based on a spatial-spectral encoded parallel OCT (SSE-POCT) system, where encoded rectangular illumination is employed. Motion artifacts within a B-scan are avoided due to parallel detection intrinsic to parallel OCT, while those between successive B-scans are estimated and corrected by a proposed overlapped data correlation (ODC) algorithm. To preserve axial resolution, decoded B-scan corresponding to complete spectrum is stitched from successive encoded B-scans after motion correction. Imaging is conducted on several samples under preset motion trajectories, and OCT images with unnoticed motion artifacts and well-preserved resolutions are reconstructed. The approach based on the developed SSE-POCT system and the proposed ODC algorithm for motion correction can be applicable for in vivo imaging where uncontrolled motion is usually unavoidable.