{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:16:20Z","timestamp":1760242580565,"version":"build-2065373602"},"reference-count":22,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2017,11,28]],"date-time":"2017-11-28T00:00:00Z","timestamp":1511827200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Basic Science Research Program through the National Research Foundation (NRF) of Korea grant funded by the Korea Government (MSIP)","award":["NRF-2015R1A2A1A15056030"],"award-info":[{"award-number":["NRF-2015R1A2A1A15056030"]}]},{"name":"National Research Foundation (NRF) of Korea under the auspices of the Ministry of Science and ICT, Republic of Korea","award":["NRF-2017R1A4A1015627"],"award-info":[{"award-number":["NRF-2017R1A4A1015627"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Diffuse optical tomography (DOT) has been studied for use in the detection of breast cancer, cerebral oxygenation, and cognitive brain signals. As optical imaging studies have increased significantly, acquiring imaging data in real time has become increasingly important. We have developed frequency-division multiplexing (FDM) DOT systems to analyze their performance with respect to acquisition time and imaging quality, in comparison with the conventional time-division multiplexing (TDM) DOT. A large tomographic area of a cylindrical phantom 60 mm in diameter could be successfully reconstructed using both TDM DOT and FDM DOT systems. In our experiment with 6 source-detector (S-D) pairs, the TDM DOT and FDM DOT systems required 6.18 and 1 s, respectively, to obtain a single tomographic data set. While the absorption coefficient of the reconstruction image was underestimated in the case of the FDM DOT, we experimentally confirmed that the abnormal region can be clearly distinguished from the background phantom using both methods.<\/jats:p>","DOI":"10.3390\/s17122752","type":"journal-article","created":{"date-parts":[[2017,11,28]],"date-time":"2017-11-28T11:23:50Z","timestamp":1511868230000},"page":"2752","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Effect of Shot Noise on Simultaneous Sensing in Frequency Division Multiplexed Diffuse Optical Tomographic Imaging Process"],"prefix":"10.3390","volume":"17","author":[{"given":"Hansol","family":"Jang","sequence":"first","affiliation":[{"name":"Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea"}]},{"given":"Gukbin","family":"Lim","sequence":"additional","affiliation":[{"name":"Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea"}]},{"given":"Keum-Shik","family":"Hong","sequence":"additional","affiliation":[{"name":"Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea"}]},{"given":"Jaedu","family":"Cho","sequence":"additional","affiliation":[{"name":"Tu & Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California, Irvine, CA 92697, USA"}]},{"given":"Gultekin","family":"Gulsen","sequence":"additional","affiliation":[{"name":"Tu & Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California, Irvine, CA 92697, USA"}]},{"given":"Chang-Seok","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2017,11,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1109\/79.962278","article-title":"Imaging the body with difuse optical tomography","volume":"18","author":"Boas","year":"2001","journal-title":"IEEE Signal Process. 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