Abstract
Fiber bundles have become widely adopted for use in endoscopy, live-organism imaging, and other imaging applications. An inherent consequence of imaging with these bundles is the introduction of a honeycomb-like artifact that arises from the inter-fiber spacing, which obscures features of objects in the image. This artifact subsequently limits applicability and can make interpretation of the image-based data difficult. This work presents a method to reduce this artifact by on-axis rotation of the fiber bundle. Fiber bundle images were first low-pass and median filtered to improve image quality. Consecutive filtered images with rotated samples were then co-registered and averaged to generate a final, reconstructed image. The results demonstrate removal of the artifacts, in addition to increased signal contrast and signal-to-noise ratio. This approach combines digital filtering and spatial resampling to reconstruct higher-quality images, enhancing the utility of images acquired using fiber bundles.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Bowen Yao, Boyi Huang, Xiang Li, Jinpeng Qi, Yuan Li, Yonghong Shao, Junle Qu, YueQing Gu, and Jia Li
Opt. Express 30(4) 5038-5050 (2022)
Qian Li, Wolfgang Rohringer, Stefan Preißer, Mikael T. Erkkilä, Richard Haindl, Harald Sattmann, Mengyang Liu, Balthasar Fischer, Rainer Leitgeb, and Wolfgang Drexler
Appl. Opt. 60(26) 7955-7962 (2021)
Neil C. Momsen, Andrew R. Rouse, and Arthur F. Gmitro
Appl. Opt. 59(22) G249-G254 (2020)