1. Articles from Youwu He

    1-5 of 5
    1. Orthogonal‐polarization‐gating optical coherence tomography for human sweat ducts in vivo

      Orthogonal‐polarization‐gating optical coherence tomography for human sweat ducts in vivo

      We propose an orthogonal‐polarization‐gating optical coherence tomography (OPGOCT) for human sweat ducts in vivo . OPG‐OCT is composed of the orthogonal linearly polarized light of a sample arm individually interfering with orthogonal linearly polarized lights of the reference arms, where OPG‐OCT induces two images, one reflecting the projection intensity and the other the horizontal linear diattenuation (HLD). The results demonstrate that OPG‐OCT projection intensity could improve the image quality of sweat ducts. HLD also clearly illustrates the spiral shape of the sweat ducts. Finally, sweat ducts in intensity image are segmented by employing convolutional neural networks ...

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    2. Orthogonal-polarization-gating optical coherence tomography for human sweat ducts in vivo

      Orthogonal-polarization-gating optical coherence tomography for human sweat ducts in vivo

      We propose an orthogonal-polarization-gating optical coherence tomography (OPGOCT) for human sweat ducts in vivo. OPG-OCT is composed of the orthogonal linearly polarized light of a sample arm individually interfering with orthogonal linearly polarized lights of the reference arms, where OPG-OCT induces two images, one reflecting the projection intensity and the other the horizontal linear diattenuation (HLD). The results demonstrate that OPG-OCT projection intensity could improve the image quality of sweat ducts. HLD also clearly illustrates the spiral shape of the sweat ducts. Finally, sweat ducts in intensity image are segmented by employing convolutional neural networks (CNN). The proportions of left-handed ...

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    3. Reform and practice of optical coherence tomography (OCT) system-driven teaching for optoelectronic instrument principle and design

      Reform and practice of optical coherence tomography (OCT) system-driven teaching for optoelectronic instrument principle and design

      Optoelectronic instrument principle and design includes the optical, mechanical, electrical and count modules for one system. We change traditional mode of customary specialty course design for only taking the cell design ability into account. Optical coherence tomography (OCT) can provide high-resolution 3D imaging system and wide application for tissue in vivo. In this work, we carry out OCT system– driven teaching into execution in the course design teaching, and decompose OCT system into four modules for teaching progress. The reform is not only cultivating student design ability based on OCT system exploitation, improving the engineering ability, but also help scientific ...

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    4. Single camera spectral domain polarization-sensitive optical coherence tomography based on orthogonal channels by time divided detection

      Single camera spectral domain polarization-sensitive optical coherence tomography based on orthogonal channels by time divided detection

      We demonstrate a simple polarization-sensitive spectral-domain optical coherence tomography implement by using a single line-scan camera based on time divided detection. Two light shutters were placed on the dual assembly reference arm that provides a divided detection between the orthogonal vertical and horizontal polarized lights. The relative reflectivity and the retardance information were available by recombining the two orthogonal polarization images. This system can be employed to implement high speed polarization-sensitive OCT images.

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    5. Monitoring the process of tissue healing of rat skin in vivo after laser irradiation based on optical coherence tomography

      Monitoring the process of tissue healing of rat skin in vivo after laser irradiation based on optical coherence tomography
      It is imperative to evaluate the tissue wound healing response after laser irradiation so as to develop effective devices for this clinical indication, and evaluate the thermal damage degree to take appropriate treatment. In our research, we prepare 6 white rat (approximately 2 months old, weight :28±2g). Each rat was injected intraperitoneally a single dose of 2% pentobarbital sodium. After the rat was anesthetized, the two side of the rats' back were denuded and antisepsised a standardized. An Er:YAG laser (2940nm, 2.5J/cm2, single spot, 4 times) was irradiated on rat skin in vivo, and the skin ...
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    1-5 of 5
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    1. (3 articles) Fujian Normal University
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    Monitoring the process of tissue healing of rat skin in vivo after laser irradiation based on optical coherence tomography Single camera spectral domain polarization-sensitive optical coherence tomography based on orthogonal channels by time divided detection Reform and practice of optical coherence tomography (OCT) system-driven teaching for optoelectronic instrument principle and design Orthogonal-polarization-gating optical coherence tomography for human sweat ducts in vivo Orthogonal‐polarization‐gating optical coherence tomography for human sweat ducts in vivo Quantification of biomechanical properties of human corneal scar using acoustic radiation force optical coherence elastography Longitudinal changes in complete avascular area assessed using anterior segmental optical coherence tomography angiography in filtering trabeculectomy bleb Quantitative Analysis of Radial Peripapillary Capillary Network in Patients With Papilledema Compared with Healthy Subjects Using Optical Coherence Tomography Angiography Reproducibility of Retinal Nerve Fiber Layer and Macular Thickness Measurements Using Spectral Domain Optical Coherence Tomography Analysis of Parainflammation in Chronic Glaucoma Using Vitreous-OCT Imaging Impact of Epiretinal Membrane on Optical Coherence Tomography Tools Used for Monitoring Glaucoma An Improved Analytical Model of a Spectrometer for Optical Coherence Tomography