1. Articles mentioning both Gwangju Institute of Science and Technology and Tae Joong Eom

    1-24 of 24
    1. Angiographic Imaging of an In Vivo Mouse Brain as a Guiding Star for Automatic Digital Refocusing in OCT

      Angiographic Imaging of an In Vivo Mouse Brain as a Guiding Star for Automatic Digital Refocusing in OCT
      A method allows the extraction of the recovery factor that maximizes the image contrast of OCT (optical coherence tomography) and/or OCTA (OCT angiography) of a living subject is proposed in this study. Due to the finite depth of focus in imaging optics, the volume OCT imaging suffers from blurriness in the lateral resolution. By utilizing the digital hologram method or angular spectrum method, the blurred image can be refocused ...
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    2. Buffered polarization diverse detection for single-camera polarization-sensitive optical coherence tomography

      Buffered polarization diverse detection for single-camera polarization-sensitive optical coherence tomography
      Herein we propose a method to mitigate a position mismatch problem for a spectral-domain polarization-sensitive optical coherence tomography (SD-PS-OCT) system that uses a single line-scan detection scheme. A single detector-based PS-OCT detects two orthogonal polarization components as two adjacent A-scan signals in turns. Thus, two adjacent A-scan signals are not scattered at a fixed point in time (position mismatch problem), resulting in uncorrelated signals between them. To achieve sequential detection ...
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    3. Microscope-mounted intraoperative optical coherence tomography with actively tunable focus and optical path length

      Microscope-mounted intraoperative optical coherence tomography with actively tunable focus and optical path length
      We present a method for an intraoperative microscope-mounted Fourier-domain optical coherence tomography (FD-OCT) system to maintain high image contrast while dynamic adjusting focal planes. Because two imaging system with different imaging depth are integrated into one system, active control of OCT imaging conditions is indispensible for functioning high quality imaging modality. For the purpose of active adjustment of the focal plane, an electrically focus tunable lens (FTL) was used in ...
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    4. In vivo three-dimensional imaging of human corneal nerves using Fourier-domain optical coherence tomography

      In vivo three-dimensional imaging of human corneal nerves using Fourier-domain optical coherence tomography
      We have employed Fourier-domain optical coherence tomography (FD-OCT) to achieve corneal nerve imaging, which could be useful in surgical planning and refractive surgery. Because the three-dimensional (3-D) images of the corneal nerves were acquiredin vivo, unintentional movement of the subject during the measurement led to imaging artifacts. These artifacts were compensated for with a series of signal processing techniques, namely realigning A-scan images to flatten the boundary and cross-correlating adjacent ...
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    5. Examination of Gland Dropout Detected on Infrared Meibography by Using Optical Coherence Tomography Meibography

      Examination of Gland Dropout Detected on Infrared Meibography by Using Optical Coherence Tomography Meibography
      Purpose To elucidate the anatomic details of gland dropout detected on two-dimensional infrared (IR) meibography in cases of dry eye associated with meibomian gland dysfunction (MGD) by using three-dimensional optical coherence tomography (OCT) meibography. Methods In this cross-sectional, observational case series, we enrolled gland dropout detected on IR meibography; the condition was then examined using a real-time swept-source OCT system. Accordingly, a series of 500 raster B-scan OCT images, with ...
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    6. Optical coherence tomography application by using optical phase shift based on fiber optic sensor

      Optical coherence tomography application by using optical phase shift based on fiber optic sensor
      We demonstrate fiber-optic sensor applications to full-range complex optical coherence tomography (OCT). To extend imaging range in OCT, real value or interferogram measured from an interferometer is needed to convert into complex value. For the purpose, various treatments such as mechanical, electro-optical, optical and programming based methods have been exploited in the interferometer. To make complex signal in fiber-optic interferometer, we propose vibrationbased optical phase shifting method. The proposed method ...
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    7. Efficient trigger signal generation from wasted backward amplified stimulated emission at optical amplifiers for optical coherence tomography

      Efficient trigger signal generation from wasted backward amplified stimulated emission at optical amplifiers for optical coherence tomography
      This paper propose an optical structure to generate trigger signals for optical coherence tomography (OCT) using backward light which is usually disposed. The backward light is called backward amplified stimulated emission generated from semiconductor optical amplifier (SOA) when using swept wavelength tunable laser (SWTL). A circulator is applied to block undesirable lights in the SWTL instead of an isolator in common SWTL. The circulator also diverts backward amplified spontaneous lights ...
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    8. Optical Coherence Tomography (OCT) Device For Processing THREE-DIMENSIONAL OCT Data

      Optical Coherence Tomography (OCT) Device For Processing THREE-DIMENSIONAL OCT Data
      The purpose of the present invention is to increase the data processing speed in an SS-OCT and an FD-OCT including the SS-OCT and, in particular, to process large-size data obtained by a receiving unit at a faster speed than the data obtaining speed, reconfigure a tomography image in real time, and provide the reconfigured image to a user. In order to achieve the purpose, according to one embodiment of the ...
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    9. Feature Of The Week 8/26/12: Gwangju Institute of Science and Technology Investigate Tomography Imaging of Single Living Cell Using Optical Tweezers and FF-OCT

      Feature Of The Week 8/26/12: Gwangju Institute of Science and Technology Investigate Tomography Imaging of Single Living Cell Using Optical Tweezers and FF-OCT
      ...formation see recent Article. Courtesy of Woo June Choi from the Gwangju Institute of Science and Technology (GIST). To share this article click Here. Gwangju Institute of Science and recently proposed a label-free depth...
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    10. Tomographic imaging of a suspending single live cell using optical tweezer-combined full-field optical coherence tomography

      Tomographic imaging of a suspending single live cell using optical tweezer-combined full-field optical coherence tomography
      ...echnology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, South Korea 3Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, South Korea We pro...
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    11. Laser Processing Apparatus For Monitoring Processing State By Using Optical Coherence Tomography Technology (Wo 2009/096750)

      Laser Processing Apparatus For Monitoring Processing State By Using Optical Coherence Tomography Technology (Wo 2009/096750)
      ...) LASER PROCESSING APPARATUS FOR MONITORING PROCESSING STATE BY USING OPTICAL COHERENCE TOMOGRAPHY TECHNOLOGY GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY [KR/KR]; 1, Oryong-dong, Buk-gu Gwangju 500-712 (KR) (All Except U...
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    12. 1-24 of 24
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    1. (3 articles) Pusan National University
    2. (2 articles) UC Irvine
    3. (1 articles) Institute of Applied Physics
    4. (1 articles) Vanderbilt University
    5. (1 articles) Korea Advanced Institute of Science and Technology
    6. (1 articles) University of Washington
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  3. People in the News

    1. (11 articles) Byeong Ha Lee
    2. (7 articles) Jun Geun Shin
    3. (6 articles) Kwan Seob Park
    4. (5 articles) Chang-Seok Kim
    5. (4 articles) Woo June Choi
    6. (2 articles) Myoung-Kyu Oh
    7. (2 articles) Myung Yung Jeong
    8. (2 articles) Zhongping Chen
    9. (1 articles) Ju Wan Kim
    10. (1 articles) Anita Mahadevan-Jansen
    11. (1 articles) Jae-Seok Park
    12. (1 articles) Min Yong Jeon