TY - JOUR
T1 - Inpainting for Saturation Artifacts in Optical Coherence Tomography Using Dictionary-Based Sparse Representation
AU - Liu, Hongshan
AU - Cao, Shengting
AU - Ling, Yuye
AU - Gan, Yu
N1 - Publisher Copyright:
© 2009-2012 IEEE.
PY - 2021/4
Y1 - 2021/4
N2 - Saturation artifacts in optical coherence tomography (OCT) occur when received signal exceeds the dynamic range of spectrometer. Saturation artifact shows a streaking pattern and could impact the quality of OCT images, leading to inaccurate medical diagnosis. In this paper, we automatically localize saturation artifacts and propose an artifact correction method via inpainting. We adopt a dictionary-based sparse representation scheme for inpainting. Experimental results demonstrate that, in both case of synthetic artifacts and real artifacts, our method outperforms interpolation method and Euler's elastica method in both qualitative and quantitative results. The generic dictionary offers similar image quality when applied to tissue samples which are excluded from dictionary training. This method may have the potential to be widely used in a variety of OCT images for the localization and inpainting of the saturation artifacts.
AB - Saturation artifacts in optical coherence tomography (OCT) occur when received signal exceeds the dynamic range of spectrometer. Saturation artifact shows a streaking pattern and could impact the quality of OCT images, leading to inaccurate medical diagnosis. In this paper, we automatically localize saturation artifacts and propose an artifact correction method via inpainting. We adopt a dictionary-based sparse representation scheme for inpainting. Experimental results demonstrate that, in both case of synthetic artifacts and real artifacts, our method outperforms interpolation method and Euler's elastica method in both qualitative and quantitative results. The generic dictionary offers similar image quality when applied to tissue samples which are excluded from dictionary training. This method may have the potential to be widely used in a variety of OCT images for the localization and inpainting of the saturation artifacts.
KW - Inpainting
KW - optical coherence tomography
KW - saturation artifacts
KW - sparse representation
UR - http://www.scopus.com/inward/record.url?scp=85100804292&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85100804292&partnerID=8YFLogxK
U2 - 10.1109/JPHOT.2021.3056574
DO - 10.1109/JPHOT.2021.3056574
M3 - Article
AN - SCOPUS:85100804292
SN - 1943-0655
VL - 13
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 2
M1 - 9345337
ER -