Work

Rotational distortion correction in endoscopic optical coherence tomography based on speckle decorrelation

Year: 2015

Type: article

Abstract: We present a new technique for the correction of nonuniform rotation distortion in catheter-based optical coherence tomography (OCT), based on the statistics of speckle between A-lines using intensity-based dynamic light scattering. This technique does not rely on tissue features and can be performed on single frames of data, thereby enabling real-time image correction. We demonstrate its suitability in a gastrointestinal (GI) balloon-catheter OCT system, determining the actual rotational speed with high temporal resolution, and present corrected cross-sectional and en face views showing significant enhancement of image quality.

Source: Optics Letters

DOI: 10.1364/ol.40.005518

Authors: Néstor Uribe-Patarroyo, Brett E. Bouma

Institutions: Harvard University, Massachusetts General Hospital

Language: English

Topic: Optical Coherence Tomography Applications

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: green

Funders: Terumo, National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering