1. Kyungpook National University

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    1. Mentioned In 29 Articles

    2. Lateral resolution enhancement using programmable phase modulator in optical coherence tomography

      Lateral resolution enhancement using programmable phase modulator in optical coherence tomography
      Adaptive optics plays an important role in the correction of high-order aberrations to enhance lateral resolution. An OCT system coupled with a programmable phase modulator is designed to verify lateral resolution improvement. The Hamamatsu high-resolution, non-pixelized, optically addressed light modulator (PAL-SLM) PPM X7550 series is used to correct aberrations, utilizing a simple method based on phase information from OCT images. The advantages of this method are its high simplicity and ...
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    3. Evaluation of the usefulness of three-dimensional optical coherence tomography in a guinea pig model of endolymphatic hydrops induced by surgical obliteration of the endolymphatic duct

      Evaluation of the usefulness of three-dimensional optical coherence tomography in a guinea pig model of endolymphatic hydrops induced by surgical obliteration of the endolymphatic duct
      ...ol of Electronics Engineering, 1370 Sankyuk 3-dong, Buk-gu, Daegu 702-701, Republic of Korea Jeong Hun Jang Kyungpook National University College of Medicine, Department of Otorhinolaryngology, 680 Gukchaebosang-ro, Ju...
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    4. Microscope System, And Method For Providing Augmented Reality Images Of Microscope System

      Microscope System, And Method For Providing Augmented Reality Images Of Microscope System
      Provided is a microscope system. The system comprises: an optical microscope unit for collecting a surface image of an object to be examined; an OCT unit for collecting an optical coherence tomography image of the object to be examined; a PA unit for collecting a photoacoustic image of the object to be examined; an image processing unit for generating an augmented reality image by superimposing the optical coherence tomography image ...
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    5. Quantitative assessment of touch-screen panel by nondestructive inspection with three-dimensional real-time display optical coherence tomography

      Quantitative assessment of touch-screen panel by nondestructive inspection with three-dimensional real-time display optical coherence tomography
      We investigated the use of optical coherence tomography (OCT) to measure several materials immersed in optical adhesives. The effects of variations in the concentration, physical characteristics, and thickness of the materials were studied, and these parameters were found to significantly affect the OCT measurement. The materials were selected for their distinct spectral properties in the infrared region. To ensure reliability, we acquired images using a scanning electron microscope after performing ...
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    6. Method and device for early non-invasive diagnosis of fruit tree disease

      Method and device for early non-invasive diagnosis of fruit tree disease
      The present invention relates to a non-invasive early diagnostic method and device that allows an early diagnosis of Marssonina blotch disease, which infects apple tree leaves, before the occurrence of lesions to enable early prevention of apple Marssonina blotch disease. The method and device of the present invention comprise the following steps: irradiating a broadband light source on an apple tree leaf undergoing diagnosis by means of optical coherence tomography ...
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    7. In vivo imaging of middle-ear and inner-ear microstructures of a mouse guided by SD-OCT combined with a surgical microscope

      In vivo imaging of middle-ear and inner-ear microstructures of a mouse guided by SD-OCT combined with a surgical microscope
      ...nkyuk 3-dong, Buk-gu, Daegu 702-701, South Korea ^2Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University, College of Medicine, 680 Gukchaebosang-ro, Jung-gu, Daegu 700-842, South Korea ...
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    8. Stimulated penetrating keratoplasty using real-time virtual intraoperative surgical optical coherence tomography

      Stimulated penetrating keratoplasty using real-time virtual intraoperative surgical optical coherence tomography
      An intraoperative surgical microscope is an essential tool in a neuro- or ophthalmological surgical environment. Yet, it has an inherent limitation to classify subsurface information because it only provides the surface images. To compensate for and assist in this problem, combining the surgical microscope with optical coherence tomography (OCT) has been adapted. We developed a real-time virtual intraoperative surgical OCT (VISOCT) system by adapting a spectral-domain OCT scanner with a ...
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    9. Comparison of OCT Measurements between High Myopic and Low Myopic Children

      Comparison of OCT Measurements between High Myopic and Low Myopic Children
      Purpose: To compare the peripapillary retinal nerve fiber layer (RNFL) thickness, macular thickness, and total macular volume of high myopic eyes with those of low myopic eyes in children younger than 10 years. Methods: Prospective, randomized, comparative study. Time-domain optical coherence tomography (OCT) (Stratus OCT; Carl Zeiss Meditec) was performed on 15 children with high myopia (refractive error greater than or equal to -6.0 diopters [D], group 1) and ...
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    10. Optical coherence tomography for the diagnosis of human otitis media

      Optical coherence tomography for the diagnosis of human otitis media
      We report the application of Optical Coherence Tomography (OCT) to various types of human cases of otitis media (OM). Whereas conventional diagnostic modalities for OM, including standard and pneumatic otoscopy, are limited to visualizing the surface information of the tympanic membrane (TM), OCT is able to effectively reveal the depth-resolved microstructural below the TM with a very high spatial resolution. With the potential advantage of using OCT for diagnosing different ...
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    11. Microscope For Monitoring Optical Coherence Tomography

      Microscope For Monitoring Optical Coherence Tomography
      The present invention relates to a microscope for monitoring optical coherence tomography. The microscope includes: a microscope image providing part in which a first object lens, a beam splitter, and an ocular lens are successively disposed from the front surface of a sample support; and an OCT image providing part providing an optical coherent tomography image into the beam splitter of the microscope image providing part after the optical coherent ...
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    12. Dual-modal photoacoustic and optical coherence tomography using a single near-infrared supercontinuum laser source

      Dual-modal photoacoustic and optical coherence tomography using a single near-infrared supercontinuum laser source
      We report the development of a combined dual-modal photoacoustic and optical coherence tomography (PA-OCT) system using a single near-infrared (NIR) supercontinuum laser source which can provide both optical absorption and scattering contrasts simultaneously. By using a small sized pulsed Nd:YAG microchip laser and a photonic crystal fiber, we fabricated a pulsed broadband supercontinuum source from 600 to 1700 nm. Under the same optical hardware system, intrinsically registered PA and ...
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    13. 1-15 of 29 1 2 »
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  2. About Kyungpook National University

    Kyungpook National University

    Kyungpook National University (KNU), is a leading national university in Daegu, South Korea. The university is one of 10 Flagship Korean National Universities. It is one of the three best recognized and oldest national universities with Seoul National University and Pusan National University. The university was established in September 1946, succeeding the former Daegu Teacher's College, Daegu Agricultural College, and Daegu Medical College. In 2008, it merged with Sangju National University.