{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:26:38Z","timestamp":1760243198976,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2014,1,27]],"date-time":"2014-01-27T00:00:00Z","timestamp":1390780800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Development of a dual-display handheld optical coherence tomography (OCT) system for retina and optic-nerve-head diagnosis beyond the volunteer motion constraints is reported. The developed system is portable and easily movable, containing the compact portable OCT system that includes the handheld probe and computer. Eye posterior chambers were diagnosed using the handheld probe, and the probe could be fixed to the bench-top cradle depending on the volunteers\u2019 physical condition. The images obtained using this handheld probe were displayed in real time on the computer monitor and on a small secondary built-in monitor; the displayed images were saved using the handheld probe\u2019s built-in button. Large-scale signal-processing procedures such as k-domain linearization, fast Fourier transform (FFT), and log-scaling signal processing can be  rapidly applied using graphics-processing-unit (GPU) accelerated processing rather than central-processing-unit (CPU) processing. The Labview-based system resolution is  1,024 \u00d7 512 pixels, and the frame rate is 56 frames\/s, useful for real-time display. The 3D images of the posterior chambers including the retina, optic-nerve head, blood vessels, and optic nerve were composed using real-time displayed images with 500 \u00d7 500 \u00d7 500 pixel resolution. A handheld and bench-top hybrid mode with a dual-display handheld OCT was developed to overcome the drawbacks of the conventional method.<\/jats:p>","DOI":"10.3390\/s140202171","type":"journal-article","created":{"date-parts":[[2014,1,28]],"date-time":"2014-01-28T03:27:01Z","timestamp":1390879621000},"page":"2171-2181","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Development of Real-Time Dual-Display Handheld and  Bench-Top Hybrid-Mode SD-OCTs"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4860-4386","authenticated-orcid":false,"given":"Nam","family":"Cho","sequence":"first","affiliation":[{"name":"School of Electrical Engineering, Kyungpook National University, 1370, Sankyuk-dong, Buk-gu, Daegu 702-701, Korea"}]},{"given":"Kibeom","family":"Park","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Kyungpook National University, 1370, Sankyuk-dong, Buk-gu, Daegu 702-701, Korea"}]},{"given":"Ruchire","family":"Wijesinghe","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Kyungpook National University, 1370, Sankyuk-dong, Buk-gu, Daegu 702-701, Korea"}]},{"given":"Yong","family":"Shin","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Kyungpook National University, 1370, Sankyuk-dong, Buk-gu, Daegu 702-701, Korea"}]},{"given":"Woonggyu","family":"Jung","sequence":"additional","affiliation":[{"name":"School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology 100, Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan 689-798, Korea"}]},{"given":"Jeehyun","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Kyungpook National University, 1370, Sankyuk-dong, Buk-gu, Daegu 702-701, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2014,1,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1178","DOI":"10.1126\/science.1957169","article-title":"Optical coherence tomography","volume":"254","author":"Huang","year":"1991","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Bouma, B.E., and Tearney, G.J. 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