1. Articles mentioning both University of British Columbia and Myeong Jin Ju

    1-9 of 9
    1. Slope-based segmentation of articular cartilage using polarization-sensitive optical coherence tomography phase retardation image

      Slope-based segmentation of articular cartilage using polarization-sensitive optical coherence tomography phase retardation image
      A segmentation method based on phase retardation measurements from polarization-sensitive optical coherence tomography (PS-OCT) is developed to differentiate the structural zones of articular cartilage. The organization of collagen matrix in articular cartilage varies over the different structural zones, generating different tissue birefringence. Analyzing the slope of the accumulated phase retardation at different depths can detect the variation in tissue birefringence and be used to segment the structural zones. The method ...
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    2. Automated identification of cone photoreceptors in adaptive optics optical coherence tomography images using transfer learning

      Automated identification of cone photoreceptors in adaptive optics optical coherence tomography images using transfer learning
      Automated measurements of the human cone mosaic requires the identification of individual cone photoreceptors. The current gold standard, manual labeling, is a tedious process and can not be done in a clinically useful timeframe. As such, we present an automated algorithm for identifying cone photoreceptors in adaptive optics optical coherence tomography (AO-OCT) images. Our approach fine-tunes a pre-trained convolutional neural network originally trained on AO scanning laser ophthalmoscope (AO-SLO) images ...
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    3. Correlation between polarization sensitive optical coherence tomography and SHG microscopy in articular cartilage

      Correlation between polarization sensitive optical coherence tomography and SHG microscopy in articular cartilage
      Polarization-sensitive optical coherence tomography (PS-OCT) and second harmonic generation (SHG) microscopy are two imaging modalities with different resolutions, field-of-views (FOV), and contrasts, while they both have the capability of imaging collagen fibers in biological tissues. PS-OCT can measure the tissue birefringence which is induced by highly organized fibers while SHG can image the collagen fiber organization with high resolution. Articular cartilage, with abundant structural collagen fibers, is a suitable sample ...
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    4. Retinal optical coherence tomography at 1  μm with dynamic focus control and axial motion tracking

      Retinal optical coherence tomography at 1  μm with dynamic focus control and axial motion tracking
      High-resolution optical coherence tomography (OCT) retinal imaging is important to noninvasively visualize the various retinal structures to aid in better understanding of the pathogenesis of vision-robbing diseases. However, conventional OCT systems have a trade-off between lateral resolution and depth-of-focus. In this report, we present the development of a focus-stacking OCT system with automatic focus optimization for high-resolution, extended-focal-range clinical retinal imaging by incorporating a variable-focus liquid lens into the sample ...
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    5. Simultaneous Investigation of Vascular and Retinal Pigment Epithelial Pathologies of Exudative Macular Diseases by Multi-Functional Optical Coherence Tomography

      Simultaneous Investigation of Vascular and Retinal Pigment Epithelial Pathologies of Exudative Macular Diseases by Multi-Functional Optical Coherence Tomography
      ...sity, Ibaraki Medical Center, Ami, Ibaraki, Japan 3. ^3Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, V6T 1Z4, Canada 4. ^4Computational Optics Group, University of ...
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    6. Advanced multi-contrast Jones matrix optical coherence tomography for Doppler and polarization sensitive imaging

      Advanced multi-contrast Jones matrix optical coherence tomography for Doppler and polarization sensitive imaging
      An advanced version of Jones matrix optical coherence tomography (JMT) is demonstrated for Doppler and polarization sensitive imaging of the posterior eye. JMT is capable of providing localized flow tomography by Doppler detection and investigating the birefringence property of tissue through a three-dimensional (3-D) Jones matrix measurement. Owing to an incident polarization multiplexing scheme based on passive optical components, this system is stable, safe in a clinical environment, and cost ...
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    7. Multimodal optical imaging with multiphoton microscopy and optical coherence tomography

      Multimodal optical imaging with multiphoton microscopy and optical coherence tomography
      Two types of combined multiphoton microscopy and optical coherence tomography (MPM/OCT) are compared for multimodal optical imaging. Single-scale multiphoton microscopy and optical coherence microscopy (MPM/OCM) is shown to acquire multiple contrasts from MPM and OCT simultaneously. Multi-scale MPM/OCT is shown to provide multiple field-of-views (FOVs), where OCT provides tissue level imaging and MPM provides cellular level imaging. In both types, the MPM includes two channels which are ...
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    8. 1-9 of 9
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  2. Organizations in the News

    1. (4 articles) Simon Fraser University
    2. (3 articles) University of Tsukuba
    3. (1 articles) Institute of Applied Physics
    4. (1 articles) Gwangju Institute of Science and Technology
    5. (1 articles) Tokyo Medical University
  3. People in the News

    1. (3 articles) Yoshiaki Yasuno
    2. (2 articles) Marinko V. Sarunic
    3. (2 articles) Masahiro Miura
    4. (2 articles) Shuichi Makita
    5. (1 articles) Byeong Ha Lee
    6. (1 articles) Jun Geun Shin
    7. (1 articles) Yifan Jian
    8. (1 articles) Tae Joong Eom