2016
DOI: 10.1364/oe.24.013365
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MEMS-based handheld scanning probe with pre-shaped input signals for distortion-free images in Gabor-domain optical coherence microscopy

Abstract: High-speed scanning in optical coherence tomography (OCT) often comes with either compromises in image quality, the requirement for post-processing of the acquired images, or both. We report on distortion-free OCT volumetric imaging with a dual-axis micro-electro-mechanical system (MEMS)-based handheld imaging probe. In the context of an imaging probe with optics located between the 2D MEMS and the sample, we report in this paper on how pre-shaped open-loop input signals with tailored non-linear parts were imp… Show more

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Cited by 88 publications
(72 citation statements)
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“…Our ongoing work has fully completed these analysis and rules-of-thumb have been extracted for these assessments [31,32]. Future work in our groups includes such analysis in the oral cavity, on prostheses already set in place, with fast-imaging OCT systems equipped with handheld scanning probes [25,26,29,33].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Our ongoing work has fully completed these analysis and rules-of-thumb have been extracted for these assessments [31,32]. Future work in our groups includes such analysis in the oral cavity, on prostheses already set in place, with fast-imaging OCT systems equipped with handheld scanning probes [25,26,29,33].…”
Section: Discussionmentioning
confidence: 99%
“…The penetration depth of OCT is limited to about 1.5 mm (especially in hard tissue), while its typical axial resolution is around 10 m (although resolutions of 2 m are also available [29]). The question is if these characteristics are suffcient to assess the temperature variations in dental ovens, by studying ceramics granulation inside the samples.…”
Section: Introductionmentioning
confidence: 99%
“…Typically, the penetration depth is about 1–3 mm in tissue, and the depth resolution is about 10–15 µm [10]. OFDI has also been applied to studying the structural features of skin, gynecological tissues, and gastrointestinal tract [11,12,13,14]. Most previous studies on medical devices using OFDI focused on discriminating between normal and diseased or cancerous tissues based on microstructural features.…”
Section: Introductionmentioning
confidence: 99%
“…In order to develop a real-time OCT intraoperative guidance system, we employed a parallel programming technique that uses a graphic processing unit (GPU) for fast computational speed and incorporated it into the microsurgical tool system [17]. This distal sensing application is distinguished from the typical OCT “B-scan/C-scan” imaging application [18] in that our distal sensing system measures a distance value by acquiring A-scan data, with its attendant complexity [19-25]. The OCT data in our application is subsequently transformed to distance information rather than morphological information, and is directly utilized for motion control in real-time.…”
Section: Introductionmentioning
confidence: 99%