Motion Correction in Optical Coherence Tomography for Multi-modality Retinal Image Registration

Jun Cheng, Jimmy Addison Lee, Guozhen Xu, Ying Quan, Ee Ping Ong, Damon Wing Kee Wong
2016 Proceedings of the Ophthalmic Medical Image Analysis Third International Workshop   unpublished
Optical coherence tomography (OCT) is a recently developed non-invasive imaging modality, which is often used in ophthalmology. Because of the sequential scanning in form of A-scans, OCT suffers from the inevitable eye movement. This often leads to mis-alignment especially among consecutive B-scans, which affects the analysis and processing of the data such as the registration of the OCT en face image to color fundus image. In this paper, we propose a novel method to correct the mis-alignment
more » ... the mis-alignment among consecutive B-scans to improve the accuracy in multi-modality retinal image registration. In the method, we propose to compute decorrelation from overlapping B-scans and to detect the eye movement. Then, the B-scans with eye movement will be re-aligned to its precedent scans while the rest of B-scans without eye movement are untouched. Our experiments results show that the proposed method improves the accuracy and success rate in the registration to color fundus images.
doi:10.17077/omia.1048 fatcat:mfpmduyiffctfpsl2rozn4r4hi