Feasibility of correlation mapping optical coherence tomography (cmOCT) for anti‐spoof sub‐surface fingerprinting

Zam, Azhar; Dsouza, Roshan; Subhash, Hrebesh M.; O’Connell, Marie-Louise; Enfield, Joey; Larin, Kirill V.; Leahy, Martin J.

doi:10.1002/jbio.201200231

Cited by 30 publications

(18 citation statements)

References 13 publications

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“…5(l)], the vasculature forms the fingerprint pattern. This vasculature would be papillary capillaries, which are known to be aligned along the finger print ridges [49,50]. Because slab-1 includes the deep epidermis and papillary dermis to some extent, some papillary capillaries are visible as shown in Fig.…”

Section: Multi-contrast Imaging Of Finger Padmentioning

confidence: 99%

Three-dimensional multi-contrast imaging of in vivo human skin by Jones matrix optical coherence tomography

Makita

Hong

et al. 2017

Biomed. Opt. Express

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A custom made dermatological Jones matrix optical coherence tomography (JM-OCT) is presented. It uses a passive-polarization-delay component based swept-source JM-OCT configuration, but is specially designed for in vivo human skin measurement. The center wavelength of its probe beam is 1310 nm and the A-line rate is 49.6 kHz. The JM-OCT is capable of simultaneously providing birefringence (local retardation) tomography, degree-ofpolarization-uniformity tomography, complex-correlation-based optical coherence angiography, and conventional scattering OCT. To evaluate the performance of this JM-OCT, we measured in vivo human skin at several locations. Using the four kinds of OCT contrasts, the morphological characteristics and optical properties of different skin types were visualized.

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Section: Multi-contrast Imaging Of Finger Padmentioning

confidence: 99%

Three-dimensional multi-contrast imaging of in vivo human skin by Jones matrix optical coherence tomography

Makita

Hong

et al. 2017

Biomed. Opt. Express

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“…When OCT images are not subject to auto-gain adjustments and are aligned with landmarks like retinal vessels, the back-scattered light increases within photoreceptor-specific layers during light-dependent degeneration (Cideciyan et al 2005; Zam et al 2013). In mice, such changes in light scattering can precede typical measures of photoreceptor cell loss like outer nuclear layer thickness, and have been correlated with ultrastructural disruptions in the inner segments and cell bodies (Levine et al 2014).…”

Section: Xx1 Phototransduction Signaling and Photoreceptor Degenerationmentioning

confidence: 99%

New Developments in Murine Imaging for Assessing Photoreceptor Degeneration In Vivo

Burns

Levine

Miller

et al. 2015

Retinal Degenerative Diseases

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Optical Coherence Tomography (OCT) is a powerful clinical tool that measures near infrared light backscattered from the eye and other tissues. OCT is used for assessing changes in retinal structure, including layer thicknesses, detachments and the presence of drusen in patient populations. Our custom-built OCT system for the mouse eye quantitatively images all layers of the neural retinal, the RPE, Bruchs’ membrane and the choroid. Longitudinal assessment of the same retinal region reveals that the relative intensities of retinal layers are highly stable in healthy tissue, but show progressive increases in intensity in a model of retinal degeneration. The observed changes in OCT signal have been correlated with ultrastructural disruptions that were most dramatic in the inner segments and nuclei of the rods. These early changes in photoreceptor structure coincided with activation of retinal microglia, which migrated vertically from the inner to the outer retina to phagocytose photoreceptor cell bodies (Levine et al. 2014). We conclude that quantitative analysis of OCT light scattering signals may be a useful tool for early detection and subcellular localization of cell stress prior to cell death, and for assessing the progression of degenerative disease over time. Future efforts to develop sensitive approaches for monitoring microglial dynamics in vivo may likewise elucidate earlier signs of cellular stress during retinal degeneration.

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“…4,5 More recently, reflectance-mode confocal microscopy has also been introduced to assess the human skin microcirculation. 6,7,8 Optical coherence tomography (OCT) is an emerging noninvasive imaging technique which can generate depth resolved images of the microcirculation 9,10,11 . However OCT itself does not directly produce these images of microcirculation.…”

Section: Introductionmentioning

confidence: 99%

“…3 A correlation mapping algorithm has been previously developed and applied by our group to Optical Coherence Tomography (OCT). 9,10,11 The technique, known as correlation mapping OCT (cmOCT) utilizes the time-varying speckle effect. This effect, produced by moving scatters, provides contrast between regions of flow and static tissue, facilitating the generation of maps of microcirculation morphology.…”

Section: Introductionmentioning

confidence: 99%

In vivo correlation mapping microscopy

et al. 2016

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Abstract. To facilitate regular assessment of the microcirculation in-vivo, non-invasive imaging techniques such as nailfold capillaroscopy are required in clinics. Recently a correlation mapping technique has been applied to Optical Coherence Tomography (OCT) which extends the capabilities of OCT to microcirculation morphology imaging. This technique, known as cmOCT has been shown to extract parameters such as capillary density and vessel diameter, key clinical markers associated with early changes in microvascular diseases. However, OCT has limited spatial resolution in both the transverse and depth directions. Here, we extend this correlation mapping technique to other microscopy modalities, including confocal microscopy and take advantage of the higher spatial resolution offered by these modalities. The technique is achieved as a processing step on microscopy images and does not require any modification to the microscope hardware. Results are presented which show that this correlation mapping microscopy technique can extend the capabilities of conventional microscopy to enable mapping of vascular networks in-vivo with high spatial resolution in both the transverse and depth directions.

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Feasibility of correlation mapping optical coherence tomography (cmOCT) for anti‐spoof sub‐surface fingerprinting

Cited by 30 publications

References 13 publications

Three-dimensional multi-contrast imaging of in vivo human skin by Jones matrix optical coherence tomography

Three-dimensional multi-contrast imaging of in vivo human skin by Jones matrix optical coherence tomography

New Developments in Murine Imaging for Assessing Photoreceptor Degeneration In Vivo

In vivo correlation mapping microscopy

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